200MHz Host ARM920T
152-611: The XGP ( Extreme Game Player ) was a concept portable video game system created by the Korean company GamePark as the follow-up to its GP32 handheld. Initially announced in 2005, the XGP was finally announced in March 2006 along with the release of the similar XGP Mini and the XGP Kids . The company went bankrupt before releasing any of the models. The XGP was scheduled to be released in three models:
304-457: A teletype printer , audio speaker , or similar device. This also distinguished from many handheld electronic games like Merlin which commonly used LED lights for indicators but did not use these in combination for imaging purposes. "Computer game" may also be used as a descriptor, as all these types of games essentially require the use of a computer processor, and in some cases, it is used interchangeably with "video game". Particularly in
456-742: A television set , computer monitor , flat-panel display or touchscreen on handheld devices , or a virtual reality headset . These games are addictive and can lead to the release of dopamine in the addict's synapses. Most modern video games are audiovisual , with audio complement delivered through speakers or headphones , and sometimes also with other types of sensory feedback (e.g., haptic technology that provides tactile sensations). Some video games also allow microphone and webcam inputs for in-game chatting and livestreaming . Video games are typically categorized according to their hardware platform , which traditionally includes arcade video games , console games , and computer (PC) games ;
608-435: A whizzer : a small, light cone attached to the joint between the voice coil and the primary cone. The whizzer cone extends the high-frequency response of the driver and broadens its high-frequency directivity, which would otherwise be greatly narrowed due to the outer diameter cone material failing to keep up with the central voice coil at higher frequencies. The main cone in a whizzer design is manufactured so as to flex more in
760-544: A DEC PDP-1 computer in 1962. Each game has different means of display: NIMROD has a panel of lights to play the game of Nim , OXO has a graphical display to play tic-tac-toe, Tennis for Two has an oscilloscope to display a side view of a tennis court, and Spacewar! has the DEC PDP-1's vector display to have two spaceships battle each other. These inventions laid the foundation for modern video games. In 1966, while working at Sanders Associates , Ralph H. Baer devised
912-402: A combination of one or more resistors , inductors and capacitors . These components are combined to form a filter network and are most often placed between the full frequency-range power amplifier and the loudspeaker drivers to divide the amplifier's signal into the necessary frequency bands before being delivered to the individual drivers. Passive crossover circuits need no external power beyond
1064-437: A combination of the limitations of the game platform and display device and the program efficiency of the game itself. The game's output can range from fixed displays using LED or LCD elements, text-based games , two-dimensional and three-dimensional graphics, and augmented reality displays. The game's graphics are often accompanied by sound produced by internal speakers on the game platform or external speakers attached to
1216-808: A complete loudspeaker system to provide performance beyond that constraint. The three most commonly used sound radiation systems are the cone, dome and horn-type drivers. A full- or wide-range driver is a speaker driver designed to be used alone to reproduce an audio channel without the help of other drivers and therefore must cover the audio frequency range required by the application. These drivers are small, typically 3 to 8 inches (7.6 to 20.3 cm) in diameter to permit reasonable high-frequency response, and carefully designed to give low-distortion output at low frequencies, though with reduced maximum output level. Full-range drivers are found, for instance, in public address systems, in televisions, small radios, intercoms, and some computer speakers . In hi-fi speaker systems,
1368-420: A corresponding sound . The driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This
1520-426: A crossover knob and a phase switch). These variants are known as active or powered subwoofers. In contrast, passive subwoofers require external amplification. In typical installations, subwoofers are physically separated from the rest of the speaker cabinets. Because of propagation delay and positioning, their output may be out of phase with the rest of the sound. Consequently, a subwoofer's power amp often has
1672-447: A cylindrical gap containing a concentrated magnetic field produced by a permanent magnet —the coil is forced to move rapidly back and forth due to Faraday's law of induction ; this attaches to a diaphragm or speaker cone (as it is usually conically shaped for sturdiness) in contact with air, thus creating sound waves . In addition to dynamic speakers, several other technologies are possible for creating sound from an electrical signal,
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#17328521379081824-445: A developer's programming language of choice, or they may opt to also use game development kits that minimize the amount of direct programming they have to do but can also limit the amount of customization they can add into a game. Like all software, video games usually undergo quality testing before release to assure there are no bugs or glitches in the product, though frequently developers will release patches and updates . With
1976-426: A driver; each implementation has advantages and disadvantages. Polyester foam, for example, is lightweight and economical, though usually leaks air to some degree and is degraded by time, exposure to ozone, UV light, humidity and elevated temperatures, limiting useful life before failure. The wire in a voice coil is usually made of copper , though aluminum —and, rarely, silver —may be used. The advantage of aluminum
2128-421: A dual role, acting also as a choke coil , filtering the power supply of the amplifier that the loudspeaker was connected to. AC ripple in the current was attenuated by the action of passing through the choke coil. However, AC line frequencies tended to modulate the audio signal going to the voice coil and added to the audible hum. In 1930 Jensen introduced the first commercial fixed-magnet loudspeaker; however,
2280-406: A dynamic loudspeaker, uses a lightweight diaphragm , or cone , connected to a rigid basket , or frame , via a flexible suspension, commonly called a spider , that constrains a voice coil to move axially through a cylindrical magnetic gap. A protective dust cap glued in the cone's center prevents dust, most importantly ferromagnetic debris, from entering the gap. When an electrical signal
2432-482: A few of which are in commercial use. In order for a speaker to efficiently produce sound, especially at lower frequencies, the speaker driver must be baffled so that the sound emanating from its rear does not cancel out the (intended) sound from the front; this generally takes the form of a speaker enclosure or speaker cabinet , an often rectangular box made of wood, but sometimes metal or plastic. The enclosure's design plays an important acoustic role thus determining
2584-414: A fictional piece of technology from Star Trek , arguing for the video game as a medium in which the player is allowed to become another person, and to act out in another world. This image of video games received early widespread popular support, and forms the basis of films such as Tron , eXistenZ and The Last Starfighter . Ludologists break sharply and radically from this idea. They argue that
2736-432: A game following its initial release. Several games offer players the ability to create user-generated content to share with others to play. Other games, mostly those on personal computers, can be extended with user-created modifications or mods that alter or add onto the game; these often are unofficial and were developed by players from reverse engineering of the game, but other games provide official support for modding
2888-458: A high-frequency horn that sent sound through a hole in the pole piece of a 15-inch woofer for near-point-source performance. Altec's "Voice of the Theatre" loudspeaker system was first sold in 1945, offering better coherence and clarity at the high output levels necessary in movie theaters. The Academy of Motion Picture Arts and Sciences immediately began testing its sonic characteristics; they made it
3040-405: A larger magnet for equivalent performance. Electromagnets were often used in musical instrument amplifiers cabinets well into the 1950s; there were economic savings in those using tube amplifiers as the field coil could, and usually did, do double duty as a power supply choke. Very few manufacturers still produce electrodynamic loudspeakers with electrically powered field coils , as was common in
3192-415: A letter dated July 10, 1972. In the letter, Bushnell uses the term "video game" twice. Per video game historian Keith Smith, the sudden appearance suggested that the term had been proposed and readily adopted by those in the field. Around March 1973, Ed Adlum, who ran Cashbox ' s coin-operated section until 1972 and then later founded RePlay Magazine , covering the coin-op amusement field, in 1975, used
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#17328521379083344-504: A limited number of platforms, and exclusivity to a platform or brand is used by platform holders as a competitive edge in the video game market. However, games may be developed for alternative platforms than intended, which are described as ports or conversions. These also may be remasters - where most of the original game's source code is reused and art assets, models, and game levels are updated for modern systems – and remakes, where in addition to asset improvements, significant reworking of
3496-432: A minimum age is used by nearly all systems, along with additional descriptors to identify specific content that players and parents should be aware of. The regulations vary from country to country but generally are voluntary systems upheld by vendor practices, with penalty and fines issued by the ratings body on the video game publisher for misuse of the ratings. Among the major content rating systems include: Additionally,
3648-419: A phase-delay adjustment which may be used improve performance of the system as a whole. Subwoofers are widely used in large concert and mid-sized venue sound reinforcement systems. Subwoofer cabinets are often built with a bass reflex port, a design feature which if properly engineered improves bass performance and increases efficiency. A woofer is a driver that reproduces low frequencies. The driver works with
3800-551: A platform, the hardware which contains computing elements, to process player interaction from some type of input device and displays the results to a video output display. Video games require a platform, a specific combination of electronic components or computer hardware and associated software , to operate. The term system is also commonly used. These platforms may include multiple brandsheld by platform holders , such as Nintendo or Sony, seeking to gain larger market shares. Games are typically designed to be played on one or
3952-464: A relatively recent development in the humanities. The two most visible schools in this emerging field are ludology and narratology . Narrativists approach video games in the context of what Janet Murray calls "Cyberdrama". That is to say, their major concern is with video games as a storytelling medium, one that arises out of interactive fiction . Murray puts video games in the context of the Holodeck ,
4104-414: A separate box, necessary to accommodate the size of the components used. Passive crossovers may be simple for low-order filtering, or complex to allow steep slopes such as 18 or 24 dB per octave. Passive crossovers can also be designed to compensate for undesired characteristics of driver, horn, or enclosure resonances, and can be tricky to implement, due to component interaction. Passive crossovers, like
4256-455: A service . Today, video game development requires numerous interdisciplinary skills, vision , teamwork , and liaisons between different parties, including developers , publishers , distributors , retailers , hardware manufacturers, and other marketers, to successfully bring a game to its consumers. As of 2020 , the global video game market had estimated annual revenues of US$ 159 billion across hardware, software, and services, which
4408-590: A similar version running in a smaller coin-operated arcade cabinet using a less expensive computer. This was released as Computer Space , the first arcade video game , in 1971. Bushnell and Dabney went on to form Atari, Inc. , and with Allan Alcorn , created their second arcade game in 1972, the hit ping pong -style Pong , which was directly inspired by the table tennis game on the Odyssey. Sanders and Magnavox sued Atari for infringement of Baer's patents, but Atari settled out of court, paying for perpetual rights to
4560-483: A single driver enclosed in a suitable enclosure. Since sound in this frequency range can easily bend around corners by diffraction , the speaker aperture does not have to face the audience, and subwoofers can be mounted in the bottom of the enclosure, facing the floor. This is eased by the limitations of human hearing at low frequencies; Such sounds cannot be located in space, due to their large wavelengths compared to higher frequencies which produce differential effects in
4712-408: A single piece, called the poleplate or yoke. The size and type of magnet and details of the magnetic circuit differ, depending on design goals. For instance, the shape of the pole piece affects the magnetic interaction between the voice coil and the magnetic field, and is sometimes used to modify a driver's behavior. A shorting ring , or Faraday loop , may be included as a thin copper cap fitted over
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4864-787: A so-called powered speaker system, the power amplifier actually feeding the speaker drivers is built into the enclosure itself; these have become more and more common especially as computer speakers. Smaller speakers are found in devices such as radios , televisions , portable audio players , personal computers ( computer speakers ), headphones , and earphones . Larger, louder speaker systems are used for home hi-fi systems ( stereos ), electronic musical instruments , sound reinforcement in theaters and concert halls, and in public address systems . The term loudspeaker may refer to individual transducers (also known as drivers ) or to complete speaker systems consisting of an enclosure and one or more drivers. To adequately and accurately reproduce
5016-515: A system to play a basic table tennis game on a television screen. With the company's approval, Baer created the prototype known as the "Brown Box." Sanders patented Baer’s innovations and licensed them to Magnavox , which commercialized the technology as the first home video game console , the Magnavox Odyssey , released in 1972. Separately, Nolan Bushnell and Ted Dabney , inspired by seeing Spacewar! running at Stanford University , devised
5168-411: A system using compressed air as an amplifying mechanism for his early cylinder phonographs, but he ultimately settled for the familiar metal horn driven by a membrane attached to the stylus. In 1898, Horace Short patented a design for a loudspeaker driven by compressed air; he then sold the rights to Charles Parsons , who was issued several additional British patents before 1910. A few companies, including
5320-424: A video game are primarily determined by the underlying set of rules, demands, and expectations imposed on the player. While many games rely on emergent principles , video games commonly present simulated story worlds where emergent behavior occurs within the context of the game. The term "emergent narrative" has been used to describe how, in a simulated environment, storyline can be created simply by "what happens to
5472-412: A video game is first and foremost a game, which must be understood in terms of its rules, interface, and the concept of play that it deploys. Espen J. Aarseth argues that, although games certainly have plots, characters, and aspects of traditional narratives, these aspects are incidental to gameplay. For example, Aarseth is critical of the widespread attention that narrativists have given to the heroine of
5624-457: A way to distinguish them from console games , arcade games , or mobile games . Other terms such as "television game", "telegame", or "TV game" had been used in the 1970s and early 1980s, particularly for home gaming consoles that rely on connection to a television set . However, these terms were also used interchangeably with "video game" in the 1970s, primarily due to "video" and "television" being synonymous. In Japan , where consoles like
5776-445: A wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy. Individual drivers are used to reproduce different frequency ranges. The drivers are named subwoofers (for very low frequencies); woofers (low frequencies); mid-range speakers (middle frequencies); tweeters (high frequencies); and sometimes supertweeters , for
5928-411: A word from Billboard ' s description of movie jukeboxes, Adlum started to refer to this new breed of amusement machine as 'video games.' The phrase stuck." Adlum explained in 1985 that up until the early 1970s, amusement arcades typically had non-video arcade games such as pinball machines and electro-mechanical games . With the arrival of video games in arcades during the early 1970s, there
6080-475: Is a low priority. A subwoofer is a woofer driver used only for the lowest-pitched part of the audio spectrum: typically below 200 Hz for consumer systems, below 100 Hz for professional live sound, and below 80 Hz in THX -approved systems. Because the intended range of frequencies is limited, subwoofer system design is usually simpler in many respects than for conventional loudspeakers, often consisting of
6232-431: Is a video game "appears highly eclectic and diverse". The gameplay experience varies radically between video games, but many common elements exist. Most games will launch into a title screen and give the player a chance to review options such as the number of players before starting a game. Most games are divided into levels which the player must work the avatar through, scoring points , collecting power-ups to boost
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6384-416: Is applied to the voice coil, a magnetic field is created by the electric current in the voice coil, making it a variable electromagnet. The coil and the driver's magnetic system interact in a manner similar to a solenoid , generating a mechanical force that moves the coil (and thus, the attached cone). Application of alternating current moves the cone back and forth, accelerating and reproducing sound under
6536-551: Is designed to be rigid, preventing deformation that could change critical alignments with the magnet gap, perhaps allowing the voice coil to rub against the magnet around the gap. Chassis are typically cast from aluminum alloy, in heavier magnet-structure speakers; or stamped from thin sheet steel in lighter-structure drivers. Other materials such as molded plastic and damped plastic compound baskets are becoming common, especially for inexpensive, low-mass drivers. A metallic chassis can play an important role in conducting heat away from
6688-459: Is frequently a cross-disciplinary field. Video game developers , as employees within this industry are commonly referred to, primarily include programmers and graphic designers . Over the years, this has expanded to include almost every type of skill that one might see prevalent in the creation of any movie or television program, including sound designers , musicians, and other technicians; as well as skills that are specific to video games, such as
6840-421: Is from 1947—a " cathode-ray tube amusement device " was filed for a patent on 25 January 1947, by Thomas T. Goldsmith Jr. and Estle Ray Mann, and issued on 14 December 1948, as U.S. Patent 2455992. Inspired by radar display technology, it consists of an analog device allowing a user to control the parabolic arc of a dot on the screen to simulate a missile being fired at targets, which are paper drawings fixed to
6992-404: Is its light weight, which reduces the moving mass compared to copper. This raises the resonant frequency of the speaker and increases its efficiency. A disadvantage of aluminum is that it is not easily soldered, and so connections must be robustly crimped together and sealed. Voice-coil wire cross sections can be circular, rectangular, or hexagonal, giving varying amounts of wire volume coverage in
7144-548: Is mostly isolated from the rest of the world due to the government's censorship, and all games published there must adhere to strict government review, disallowing content such as smearing the image of the Chinese Communist Party . Foreign games published in China often require modification by developers and publishers to meet these requirements. Video game development and authorship, much like any other form of entertainment,
7296-447: Is the primary means which one interacts with a video game. The narrative setting does not impact gameplay; a shooter game is still a shooter game, regardless of whether it takes place in a fantasy world or in outer space. An exception is the horror game genre, used for games that are based on narrative elements of horror fiction , the supernatural , and psychological horror . Genre names are normally self-describing in terms of
7448-571: Is three times the size of the global music industry and four times that of the film industry in 2019, making it a formidable heavyweight across the modern entertainment industry . The video game market is also a major influence behind the electronics industry , where personal computer component, console, and peripheral sales, as well as consumer demands for better game performance, have been powerful driving factors for hardware design and innovation. Early video games use interactive electronic devices with various display formats. The earliest example
7600-464: Is thus the opposite function to the microphone ; indeed the dynamic speaker driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such a motor in reverse, as a generator . The dynamic speaker was invented in 1925 by Edward W. Kellogg and Chester W. Rice . When the electrical current from an audio signal passes through its voice coil —a coil of wire capable of moving axially in
7752-484: Is well damped to reduce vibrations continuing after the signal has stopped with little or no audible ringing due to its resonance frequency as determined by its usage. In practice, all three of these criteria cannot be met simultaneously using existing materials; thus, driver design involves trade-offs . For example, paper is light and typically well-damped, but is not stiff; metal may be stiff and light, but it usually has poor damping; plastic can be light, but typically,
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#17328521379087904-515: The Berne Convention . This typically only applies to the underlying code, as well as to the artistic aspects of the game such as its writing, art assets, and music. Gameplay itself is generally not considered copyrightable; in the United States among other countries, video games are considered to fall into the idea–expression distinction in that it is how the game is presented and expressed to
8056-637: The Clue VCR Mystery Game which required players to watch VCR clips between turns. To distinguish between these two, video games are considered to require some interactivity that affects the visual display. Most video games tend to feature some type of victory or winning conditions, such as a scoring mechanism or a final boss fight. The introduction of walking simulators ( adventure games that allow for exploration but lack any objectives) like Gone Home , and empathy games (video games that tend to focus on emotion) like That Dragon, Cancer brought
8208-540: The United Kingdom and Western Europe , this is common due to the historic relevance of domestically produced microcomputers. Other terms used include digital game, for example, by the Australian Bureau of Statistics . However, the term "computer game" can also be used to more specifically refer to games played primarily on personal computers or other types of flexible hardware systems (also known as PC game ), as
8360-485: The Unterhaltungssoftware Selbstkontrolle ( Entertainment Software Self-Regulation ) would refuse to classify, and thus allow sale, of any game depicting Nazi imagery, and thus often requiring developers to replace such imagery with fictional ones. This ruling was relaxed in 2018 to allow for such imagery for "social adequacy" purposes that applied to other works of art. China's video game segment
8512-514: The Victor Talking Machine Company and Pathé , produced record players using compressed-air loudspeakers. Compressed-air designs are significantly limited by their poor sound quality and their inability to reproduce sound at low volume. Variants of the design were used for public address applications, and more recently, other variations have been used to test space-equipment resistance to the very loud sound and vibration levels that
8664-476: The crash of the North American video game market in 1983 due to loss of publishing control and saturation of the market. Following the crash, the industry matured, was dominated by Japanese companies such as Nintendo , Sega , and Sony , and established practices and methods around the development and distribution of video games to prevent a similar crash in the future, many of which continue to be followed. In
8816-631: The film house industry standard in 1955. In 1954, Edgar Villchur developed the acoustic suspension principle of loudspeaker design. This allowed for better bass response than previously obtainable from drivers mounted in larger cabinets. He and his partner Henry Kloss formed the Acoustic Research company to manufacture and market speaker systems using this principle. Subsequently, continuous developments in enclosure design and materials led to significant audible improvements. The most notable improvements to date in modern dynamic drivers, and
8968-611: The first-person shooter and the Grand Theft Auto clone , respectively, in the few years after their release. However, at times and more frequently at the onset of the industry, developers would intentionally create video game clones of successful games and game hardware with few changes, which led to the flooded arcade and dedicated home console market around 1978. Cloning is also a major issue with countries that do not have strong intellectual property protection laws, such as within China . The lax oversight by China's government and
9120-409: The game designer . All of these are managed by producers . In the early days of the industry, it was more common for a single person to manage all of the roles needed to create a video game. As platforms have become more complex and powerful in the type of material they can present, larger teams have been needed to generate all of the art, programming, cinematography, and more. This is not to say that
9272-418: The mid frequencies (between the woofer and tweeter). Mid-range driver diaphragms can be made of paper or composite materials and can be direct radiation drivers (rather like smaller woofers) or they can be compression drivers (rather like some tweeter designs). If the mid-range driver is a direct radiator, it can be mounted on the front baffle of a loudspeaker enclosure, or, if a compression driver, mounted at
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#17328521379089424-528: The spider , which connects the diaphragm or voice coil to the lower frame and provides the majority of the restoring force, and the surround , which helps center the coil/cone assembly and allows free pistonic motion aligned with the magnetic gap. The spider is usually made of a corrugated fabric disk, impregnated with a stiffening resin. The name comes from the shape of early suspensions, which were two concentric rings of Bakelite material, joined by six or eight curved legs . Variations of this topology included
9576-439: The 1950s and 1960s were simple extensions of electronic games using video-like output from large, room-sized mainframe computers . The first consumer video game was the arcade video game Computer Space in 1971. In 1972 came the iconic hit game Pong and the first home console , the Magnavox Odyssey . The industry grew quickly during the "golden age" of arcade video games from the late 1970s to early 1980s but suffered from
9728-519: The 1970s and 1980s before having a larger worldwide contribution. Today, the video game industry is predominantly led by major companies in North America (primarily the United States and Canada), Europe, and southeast Asia including Japan, South Korea, and China. Hardware production remains an area dominated by Asian companies either directly involved in hardware design or part of the production process, but digital distribution and indie game development of
9880-522: The 1983 crash, forming around the concept of publisher-developer dichotomies, and by the 2000s, leading to the industry centralizing around low-risk, triple-A games and studios with large development budgets of at least $ 10 million or more. The advent of the Internet brought digital distribution as a viable means to distribute games, and contributed to the growth of more riskier, experimental independent game development as an alternative to triple-A games in
10032-462: The 1993 game . A hierarchy of game genres exist, with top-level genres like "shooter game" and "action game" that broadly capture the game's main gameplay style, and several subgenres of specific implementation, such as within the shooter game first-person shooter and third-person shooter . Some cross-genre types also exist that fall until multiple top-level genres such as action-adventure game . A video game's mode describes how many players can use
10184-626: The 2000s, the core industry centered on " AAA " games, leaving little room for riskier experimental games. Coupled with the availability of the Internet and digital distribution , this gave room for independent video game development (or " indie games ") to gain prominence into the 2010s. Since then, the commercial importance of the video game industry has been increasing. The emerging Asian markets and proliferation of smartphone games in particular are altering player demographics towards casual gaming and increasing monetization by incorporating games as
10336-637: The Internet or other communication methods as well as cloud gaming alleviate the need for any physical media. In some cases, the media serves as the direct read-only memory for the game, or it may be the form of installation media that is used to write the main assets to the player's platform's local storage for faster loading periods and later updates. Games can be extended with new content and software patches through either expansion packs which are typically available as physical media, or as downloadable content nominally available via digital distribution. These can be offered freely or can be used to monetize
10488-467: The Odyssey were first imported and then made within the country by the large television manufacturers such as Toshiba and Sharp Corporation , such games are known as "TV games", "TV geemu", or "terebi geemu". The term "TV game" is still commonly used into the 21st century. "Electronic game" may also be used to refer to video games, but this also incorporates devices like early handheld electronic games that lack any video output. The first appearance of
10640-408: The XGP and GP32. Specifications XGP Video game A video game , also known as a computer game or just a game , is an electronic game that involves interaction with a user interface or input device (such as a joystick , controller , keyboard , or motion sensing device) to generate visual feedback from a display device , most commonly shown in a video format on
10792-562: The XGP was expected to be marketed worldwide Since Gamepark declared bankruptcy in March 2007, the XGP went unreleased. This left GP2X —created by splinter company Gamepark Holdings —as the only successor to the GP32 to make it to market. GamePark was planning on releasing three models of the XGP; the high-end XGP, the middle-range XGP mini, and the low-end XGP Kids. The XGP system was to focus on downloadable commercial games, as well as on free homebrew content. The ability to use Linux on
10944-567: The XGP, the XGPmini and the XGP Kids. GamePark said that it did not wish to compete with Sony and Nintendo with the device. The XGP Kids was aimed towards children and therefore had a significantly lower price point. It was designed to run simpler games tailored to an audience besides 'hardcore gamers'. While the GP32 was only available in select markets—Korea and parts of Europe and Asia—or had to be imported,
11096-411: The addition of a felt disc to provide a barrier to particles that might otherwise cause the voice coil to rub. The cone surround can be rubber or polyester foam , treated paper or a ring of corrugated, resin-coated fabric; it is attached to both the outer cone circumference and to the upper frame. These diverse surround materials, their shape and treatment can dramatically affect the acoustic output of
11248-728: The age of the "one-man shop" is gone, as this is still sometimes found in the casual gaming and handheld markets, where smaller games are prevalent due to technical limitations such as limited RAM or lack of dedicated 3D graphics rendering capabilities on the target platform (e.g., some PDAs ). Video games are programmed like any other piece of computer software. Prior to the mid-1970s, arcade and home consoles were programmed by assembling discrete electro-mechanical components on circuit boards, which limited games to relatively simple logic. By 1975, low-cost microprocessors were available at volume to be used for video game hardware, which allowed game developers to program more detailed games, widening
11400-542: The appropriate driver. A loudspeaker system with n separate frequency bands is described as n-way speakers : a two-way system will have a woofer and a tweeter; a three-way system employs a woofer, a mid-range, and a tweeter. Loudspeaker drivers of the type pictured are termed dynamic (short for electrodynamic) to distinguish them from other sorts including moving iron speakers , and speakers using piezoelectric or electrostatic systems. Johann Philipp Reis installed an electric loudspeaker in his telephone in 1861; it
11552-416: The audio signal itself, but have some disadvantages: they may require larger inductors and capacitors due to power handling requirements. Unlike active crossovers which include a built-in amplifier, passive crossovers have an inherent attenuation within the passband , typically leading to a reduction in damping factor before the voice coil. An active crossover is an electronic filter circuit that divides
11704-417: The avatar's innate attributes, all while either using special attacks to defeat enemies or moves to avoid them. This information is relayed to the player through a type of on-screen user interface such as a heads-up display atop the rendering of the game itself. Taking damage will deplete their avatar's health , and if that falls to zero or if the avatar otherwise falls into an impossible-to-escape location,
11856-434: The cars in front of them and the obstacle. The programmer never wrote code to specifically create a traffic jam, yet one now exists in the game. Most commonly, video games are protected by copyright , though both patents and trademarks have been used as well. Though local copyright regulations vary to the degree of protection, video games qualify as copyrighted visual-audio works, and enjoy cross-country protection under
12008-449: The characteristics of the speaker enclosure to produce suitable low frequencies. Some loudspeaker systems use a woofer for the lowest frequencies, sometimes well enough that a subwoofer is not needed. Additionally, some loudspeakers use the woofer to handle middle frequencies, eliminating the mid-range driver. A mid-range speaker is a loudspeaker driver that reproduces a band of frequencies generally between 1–6 kHz, otherwise known as
12160-455: The console from being backwards compatible with the GP32, although GP32 software could be reprogrammed to work on the XGP Kids. The device was intended to be relatively inexpensive and to give a chance to those who missed out on the GP32's limited production run to get something very much like a BLU+ . The XGP Kids, like the XGP Mini, will have a smaller screen (at only 2.2 inches (56 mm)) than
12312-417: The console itself, while peripheral controllers are available as a separate purchase from the console manufacturer or third-party vendors. Similar control sets are built into handheld consoles and onto arcade cabinets. Newer technology improvements have incorporated additional technology into the controller or the game platform, such as touchscreens and motion detection sensors that give more options for how
12464-486: The control of the applied electrical signal coming from the amplifier. The following is a description of the individual components of this type of loudspeaker. The diaphragm is usually manufactured with a cone- or dome-shaped profile. A variety of different materials may be used, but the most common are paper, plastic, and metal. The ideal material is rigid, to prevent uncontrolled cone motions, has low mass to minimize starting force requirements and energy storage issues and
12616-413: The crossover is an assembly of filters that separate the input signal into different frequency bands according to the requirements of each driver. Hence the drivers receive power only in the sound frequency range they were designed for, thereby reducing distortion in the drivers and interference between them. Crossovers can be passive or active . A passive crossover is an electronic circuit that uses
12768-688: The device was much smaller than the XGP—much like the Game Boy Micro as compared to the Game Boy Advance . In contrast to the XGP, it featured no wireless connectivity and half the DDR SDRAM at 32 MB. Specifications The XGP Kids was technically similar to the GP32. The two consoles' specifications differ in screen size and resolution, available memory (Kids adds 2 MB NOR Flash memory), processor type, and storage. These differences would prevent
12920-423: The difficulty for foreign companies to take Chinese entities to court had enabled China to support a large grey market of cloned hardware and software systems. The industry remains challenged to distinguish between creating new games based on refinements of past successful games to create a new type of gameplay, and intentionally creating a clone of a game that may simply swap out art assets. The early history of
13072-746: The driver units that they feed, have power handling limits, have insertion losses , and change the load seen by the amplifier. The changes are matters of concern for many in the hi-fi world. When high output levels are required, active crossovers may be preferable. Active crossovers may be simple circuits that emulate the response of a passive network or may be more complex, allowing extensive audio adjustments. Some active crossovers, usually digital loudspeaker management systems, may include electronics and controls for precise alignment of phase and time between frequency bands, equalization, dynamic range compression and limiting . Most loudspeaker systems consist of drivers mounted in an enclosure, or cabinet. The role of
13224-487: The drivers mounted in holes in it. However, in this approach, sound frequencies with a wavelength longer than the baffle dimensions are canceled out because the antiphase radiation from the rear of the cone interferes with the radiation from the front. With an infinitely large panel, this interference could be entirely prevented. A sufficiently large sealed box can approach this behavior. Since panels of infinite dimensions are impossible, most enclosures function by containing
13376-589: The earliest designs. Speaker system design involves subjective perceptions of timbre and sound quality, measurements and experiments. Adjusting a design to improve performance is done using a combination of magnetic, acoustic, mechanical, electrical, and materials science theory, and tracked with high-precision measurements and the observations of experienced listeners. A few of the issues speaker and driver designers must confront are distortion, acoustic lobing , phase effects, off-axis response, and crossover artifacts. Designers can use an anechoic chamber to ensure
13528-501: The ears due to shadowing by the head, and diffraction around it, both of which we rely upon for localization clues. To accurately reproduce very low bass notes, subwoofer systems must be solidly constructed and properly braced to avoid unwanted sounds from cabinet vibrations. As a result, good subwoofers are typically quite heavy. Many subwoofer systems include integrated power amplifiers and electronic subsonic -filters, with additional controls relevant to low-frequency reproduction (e.g.
13680-422: The enclosure is to prevent sound waves emanating from the back of a driver from interfering destructively with those from the front. The sound waves emitted from the back are 180° out of phase with those emitted forward, so without an enclosure they typically cause cancellations which significantly degrade the level and quality of sound at low frequencies. The simplest driver mount is a flat panel ( baffle ) with
13832-429: The first film industry-standard loudspeaker system, "The Shearer Horn System for Theatres", a two-way system, was introduced by Metro-Goldwyn-Mayer . It used four 15" low-frequency drivers, a crossover network set for 375 Hz, and a single multi-cellular horn with two compression drivers providing the high frequencies. John Kenneth Hilliard , James Bullough Lansing , and Douglas Shearer all played roles in creating
13984-434: The game Tomb Raider , saying that "the dimensions of Lara Croft 's body, already analyzed to death by film theorists , are irrelevant to me as a player, because a different-looking body would not make me play differently... When I play, I don't even see her body, but see through it and past it." Simply put, ludologists reject traditional theories of art because they claim that the artistic and socially relevant qualities of
14136-642: The game at the same type. This is primarily distinguished by single-player video games and multiplayer video games . Within the latter category, multiplayer games can be played in a variety of ways, including locally at the same device, on separate devices connected through a local network such as LAN parties , or online via separate Internet connections. Most multiplayer games are based on competitive gameplay, but many offer cooperative and team-based options as well as asymmetric gameplay . Online games use server structures that can also enable massively multiplayer online games (MMOs) to support hundreds of players at
14288-406: The game can also be exploited. On some consoles, cheat cartridges allow players to execute these cheat codes, and user-developed trainers allow similar bypassing for computer software games. Both of which might make the game easier, give the player additional power-ups, or change the appearance of the game. To distinguish from electronic games, a video game is generally considered to require
14440-484: The game should they lose all their lives or need to stop the game and restart at a later time. These also may be in the form of a passage that can be written down and reentered at the title screen. Product flaws include software bugs which can manifest as glitches which may be exploited by the player; this is often the foundation of speedrunning a video game. These bugs, along with cheat codes , Easter eggs , and other hidden secrets that were intentionally added to
14592-501: The game. Video game can use several types of input devices to translate human actions to a game. Most common are the use of game controllers like gamepads and joysticks for most consoles, and as accessories for personal computer systems along keyboard and mouse controls. Common controls on the most recent controllers include face buttons, shoulder triggers, analog sticks , and directional pads ("d-pads") . Consoles typically include standard controllers which are shipped or bundled with
14744-399: The game. By definition, all video games are intended to output graphics to an external video display, such as cathode-ray tube televisions, newer liquid-crystal display (LCD) televisions and built-in screens, projectors or computer monitors , depending on the type of platform the game is played on. Features such as color depth , refresh rate , frame rate , and screen resolution are
14896-560: The game. Today, many games are built around a game engine that handles the bulk of the game's logic, gameplay, and rendering. These engines can be augmented with specialized engines for specific features, such as a physics engine that simulates the physics of objects in real-time. A variety of middleware exists to help developers access other features, such as playback of videos within games, network-oriented code for games that communicate via online services, matchmaking for online games, and similar features. These features can be used from
15048-485: The growth of the size of development teams in the industry, the problem of cost has increased. Development studios need the best talent, while publishers reduce costs to maintain profitability on their investment. Typically, a video game console development team ranges from 5 to 50 people, and some exceed 100. In May 2009, Assassin's Creed II was reported to have a development staff of 450. The growth of team size combined with greater pressure to get completed projects into
15200-433: The highest audible frequencies and beyond. The terms for different speaker drivers differ, depending on the application. In two-way systems there is no mid-range driver, so the task of reproducing the mid-range sounds is divided between the woofer and tweeter. When multiple drivers are used in a system, a filter network, called an audio crossover , separates the incoming signal into different frequency ranges and routes them to
15352-586: The idea of games that did not have any such type of winning condition and raising the question of whether these were actually games. These are still commonly justified as video games as they provide a game world that the player can interact with by some means. The lack of any industry definition for a video game by 2021 was an issue during the case Epic Games v. Apple which dealt with video games offered on Apple's iOS App Store . Among concerns raised were games like Fortnite Creative and Roblox which created metaverses of interactive experiences, and whether
15504-419: The large, heavy iron magnets of the day were impractical and field-coil speakers remained predominant until the widespread availability of lightweight alnico magnets after World War II. In the 1930s, loudspeaker manufacturers began to combine two and three drivers or sets of drivers each optimized for a different frequency range in order to improve frequency response and increase sound pressure level. In 1937,
15656-450: The larger " AAA " game studios, and are often experiments in gameplay and art style. Indie game development is aided by the larger availability of digital distribution, including the newer mobile gaming market, and readily-available and low-cost development tools for these platforms. Although departments of computer science have been studying the technical aspects of video games for years, theories that examine games as an artistic medium are
15808-713: The larger game and the individual experiences themselves were games or not in relation to fees that Apple charged for the App Store. Judge Yvonne Gonzalez Rogers , recognizing that there was yet an industry standard definition for a video game, established for her ruling that "At a bare minimum, video games appear to require some level of interactivity or involvement between the player and the medium" compared to passive entertainment like film, music, and television, and "videogames are also generally graphically rendered or animated, as opposed to being recorded live or via motion capture as in films or television". Rogers still concluded that what
15960-417: The late 2000s and which has continued to grow as a significant portion of the video game industry. Video games have a large network effect that draw on many different sectors that tie into the larger video game industry. While video game developers are a significant portion of the industry, other key participants in the market include: The industry itself grew out from both the United States and Japan in
16112-455: The late 2000s has allowed game developers to flourish nearly anywhere and diversify the field. Loudspeaker A loudspeaker (commonly referred to as a speaker or, more fully, a speaker system ) is a combination of one or more speaker drivers , an enclosure , and electrical connections (possibly including a crossover network ). The speaker driver is an electroacoustic transducer that converts an electrical audio signal into
16264-452: The latter also encompasses LAN games , online games , and browser games . More recently, the video game industry has expanded onto mobile gaming through mobile devices (such as smartphones and tablet computers ), virtual and augmented reality systems, and remote cloud gaming . Video games are also classified into a wide range of genres based on their style of gameplay and target audience . The first video game prototypes in
16416-501: The launching of rockets produces. The first experimental moving-coil (also called dynamic ) loudspeaker was invented by Oliver Lodge in 1898. The first practical moving-coil loudspeakers were manufactured by Danish engineer Peter L. Jensen and Edwin Pridham in 1915, in Napa, California . Like previous loudspeakers these used horns to amplify the sound produced by a small diaphragm. Jensen
16568-415: The loudspeaker diaphragm—again resulting in degradation of sound quality. This can be reduced by internal absorption using absorptive materials such as glass wool , wool, or synthetic fiber batting, within the enclosure. The internal shape of the enclosure can also be designed to reduce this by reflecting sounds away from the loudspeaker diaphragm, where they may then be absorbed. Other enclosure types alter
16720-454: The loudspeakers that employ them, are improvements in cone materials, the introduction of higher-temperature adhesives, improved permanent magnet materials, improved measurement techniques, computer-aided design , and finite element analysis. At low frequencies, Thiele/Small parameters electrical network theory has been used to optimize bass driver and enclosure synergy since the early 1970s. The most common type of driver, commonly called
16872-420: The magnetic gap space. The coil is oriented co-axially inside the gap; it moves back and forth within a small circular volume (a hole, slot, or groove) in the magnetic structure. The gap establishes a concentrated magnetic field between the two poles of a permanent magnet; the outside ring of the gap is one pole, and the center post (called the pole piece) is the other. The pole piece and backplate are often made as
17024-659: The major content system provides have worked to create the International Age Rating Coalition (IARC), a means to streamline and align the content ratings system between different region, so that a publisher would only need to complete the content ratings review for one provider, and use the IARC transition to affirm the content rating for all other regions. Certain nations have even more restrictive rules related to political or ideological content. Within Germany, until 2018,
17176-462: The market to begin recouping production costs has led to a greater occurrence of missed deadlines, rushed games, and the release of unfinished products. While amateur and hobbyist game programming had existed since the late 1970s with the introduction of home computers, a newer trend since the mid-2000s is indie game development . Indie games are made by small teams outside any direct publisher control, their games being smaller in scope than those from
17328-405: The market. Due to loss of publishing control and oversaturation of the market, the North American home video game market crashed in 1983 , dropping from revenues of around $ 3 billion in 1983 to $ 100 million by 1985. Many of the North American companies created in the prior years closed down. Japan's growing game industry was briefly shocked by this crash but had sufficient longevity to withstand
17480-451: The minimum number of amplifier channels. Some loudspeaker designs use a combination of passive and active crossover filtering, such as a passive crossover between the mid- and high-frequency drivers and an active crossover for the low-frequency driver. Passive crossovers are commonly installed inside speaker boxes and are by far the most common type of crossover for home and low-power use. In car audio systems, passive crossovers may be in
17632-774: The original game and possibly from scratch is performed. The list below is not exhaustive and excludes other electronic devices capable of playing video games such as PDAs and graphing calculators . Early arcade games, home consoles, and handheld games were dedicated hardware units with the game's logic built into the electronic componentry of the hardware. Since then, most video game platforms are considered programmable, having means to read and play multiple games distributed on different types of media or formats. Physical formats include ROM cartridges , magnetic storage including magnetic-tape data storage and floppy discs , optical media formats including CD-ROM and DVDs , and flash memory cards. Furthermore digital distribution over
17784-617: The outer diameter than in the center. The result is that the main cone delivers low frequencies and the whizzer cone contributes most of the higher frequencies. Since the whizzer cone is smaller than the main diaphragm, output dispersion at high frequencies is improved relative to an equivalent single larger diaphragm. Limited-range drivers, also used alone, are typically found in computers, toys, and clock radios . These drivers are less elaborate and less expensive than wide-range drivers, and they may be severely compromised to fit into very small mounting locations. In these applications, sound quality
17936-487: The output power of some designs has been increased to levels useful for professional sound reinforcement, and their output pattern is wide in the horizontal plane, a pattern that has convenient applications in concert sound. A coaxial driver is a loudspeaker driver with two or more combined concentric drivers. Coaxial drivers have been produced by Altec , Tannoy , Pioneer , KEF , SEAS, B&C Speakers, BMS, Cabasse and Genelec . Used in multi-driver speaker systems ,
18088-429: The patent by Rice and Kellogg is the adjustment of mechanical parameters to provide a reasonably flat frequency response . These first loudspeakers used electromagnets , because large, powerful permanent magnets were generally not available at a reasonable price. The coil of an electromagnet, called a field coil, was energized by a current through a second pair of connections to the driver. This winding usually served
18240-472: The patents. Following their agreement, Atari made a home version of Pong , which was released by Christmas 1975. The success of the Odyssey and Pong , both as an arcade game and home machine, launched the video game industry. Both Baer and Bushnell have been titled "Father of Video Games" for their contributions. The term "video game" was developed to distinguish this class of electronic games that were played on some type of video display rather than on
18392-409: The platform, as directed by the game's programming. This often will include sound effects tied to the player's actions to provide audio feedback, as well as background music for the game. Some platforms support additional feedback mechanics to the player that a game can take advantage of. This is most commonly haptic technology built into the game controller, such as causing the controller to shake in
18544-399: The player interacts with the game. Specialized controllers may be used for certain genres of games, including racing wheels , light guns and dance pads . Digital cameras and motion detection can capture movements of the player as input into the game, which can, in some cases, effectively eliminate the control, and on other systems such as virtual reality, are used to enhance immersion into
18696-502: The player that can be copyrighted, but not the underlying principles of the game. Because gameplay is normally ineligible for copyright, gameplay ideas in popular games are often replicated and built upon in other games. At times, this repurposing of gameplay can be seen as beneficial and a fundamental part of how the industry has grown by building on the ideas of others. For example Doom (1993) and Grand Theft Auto III (2001) introduced gameplay that created popular new game genres,
18848-433: The player will lose one of their lives . Should they lose all their lives without gaining an extra life or "1-UP" , then the player will reach the " game over " screen. Many levels as well as the game's finale end with a type of boss character the player must defeat to continue on. In some games, intermediate points between levels will offer save points where the player can create a saved game on storage media to restart
19000-419: The player's hands to simulate a shaking earthquake occurring in game. Video games are frequently classified by a number of factors related to how one plays them. A video game, like most other forms of media, may be categorized into genres . However, unlike film or television which use visual or narrative elements, video games are generally categorized into genres based on their gameplay interaction, since this
19152-430: The player." However, emergent behavior is not limited to sophisticated games. In general, any place where event-driven instructions occur for AI in a game, emergent behavior will exist. For instance, take a racing game in which cars are programmed to avoid crashing, and they encounter an obstacle in the track: the cars might then maneuver to avoid the obstacle causing the cars behind them to slow or maneuver to accommodate
19304-453: The pole tip or as a heavy ring situated within the magnet-pole cavity. The benefits of this complication is reduced impedance at high frequencies, providing extended treble output, reduced harmonic distortion, and a reduction in the inductance modulation that typically accompanies large voice coil excursions. On the other hand, the copper cap requires a wider voice-coil gap, with increased magnetic reluctance; this reduces available flux, requiring
19456-450: The question of what are the essential factors of a video game that separate the medium from other forms of entertainment. The introduction of interactive films in the 1980s with games like Dragon's Lair , featured games with full motion video played off a form of media but only limited user interaction. This had required a means to distinguish these games from more traditional board games that happen to also use external media, such as
19608-449: The rear radiation from the moving diaphragm. A sealed enclosure prevents transmission of the sound emitted from the rear of the loudspeaker by confining the sound in a rigid and airtight box. Techniques used to reduce the transmission of sound through the walls of the cabinet include thicker cabinet walls, internal bracing and lossy wall material. However, a rigid enclosure reflects sound internally, which can then be transmitted back through
19760-418: The rear sound radiation so it can add constructively to the output from the front of the cone. Designs that do this (including bass reflex , passive radiator , transmission line , etc.) are often used to extend the effective low-frequency response and increase the low-frequency output of the driver. To make the transition between drivers as seamless as possible, system designers have attempted to time align
19912-455: The reproduction of the very lowest frequencies (20–~50 Hz ) is augmented by a so-called subwoofer often in its own (large) enclosure. In a two-way or three-way speaker system (one with drivers covering two or three different frequency ranges) there is a small amount of passive electronics called a crossover network which helps direct components of the electronic signal to the speaker drivers best capable of reproducing those frequencies. In
20064-411: The resulting sound quality. Most high fidelity speaker systems (picture at right) include two or more sorts of speaker drivers, each specialized in one part of the audible frequency range. The smaller drivers capable of reproducing the highest audio frequencies are called tweeters , those for middle frequencies are called mid-range drivers and those for low frequencies are called woofers . Sometimes
20216-637: The same time. A small number of video games are zero-player games , in which the player has very limited interaction with the game itself. These are most commonly simulation games where the player may establish a starting state and then let the game proceed on its own, watching the results as a passive observer, such as with many computerized simulations of Conway's Game of Life . Most video games are intended for entertainment purposes. Different game types include: Video games can be subject to national and international content rating requirements. Like with film content ratings, video game ratings typing identify
20368-544: The scope of what was possible. Ongoing improvements in computer hardware technology have expanded what has become possible to create in video games, coupled with convergence of common hardware between console, computer, and arcade platforms to simplify the development process. Today, game developers have a number of commercial and open source tools available for use to make games, often which are across multiple platforms to support portability, or may still opt to create their own for more specialized features and direct control of
20520-605: The screen. Other early examples include Christopher Strachey 's draughts game, the Nimrod computer at the 1951 Festival of Britain ; OXO , a tic-tac-toe computer game by Alexander S. Douglas for the EDSAC in 1952; Tennis for Two , an electronic interactive game engineered by William Higinbotham in 1958; and Spacewar! , written by Massachusetts Institute of Technology students Martin Graetz, Steve Russell , and Wayne Wiitanen's on
20672-506: The short-term effects, and Nintendo helped to revitalize the industry with the release of the Nintendo Entertainment System in North America in 1985. Along with it, Nintendo established a number of core industrial practices to prevent unlicensed game development and control game distribution on their platform, methods that continue to be used by console manufacturers today. The industry remained more conservative following
20824-433: The signal into individual frequency bands before power amplification, thus requiring at least one power amplifier for each band. Passive filtering may also be used in this way before power amplification, but it is an uncommon solution, being less flexible than active filtering. Any technique that uses crossover filtering followed by amplification is commonly known as bi-amping, tri-amping, quad-amping, and so on, depending on
20976-496: The speaker can be measured independently of room effects, or any of several electronic techniques that, to some extent, substitute for such chambers. Some developers eschew anechoic chambers in favor of specific standardized room setups intended to simulate real-life listening conditions. Individual electrodynamic drivers provide their best performance within a limited frequency range. Multiple drivers (e.g. subwoofers, woofers, mid-range drivers, and tweeters) are generally combined into
21128-435: The stiffer it is made, the poorer the damping. As a result, many cones are made of some sort of composite material. For example, a cone might be made of cellulose paper, into which some carbon fiber , Kevlar , glass , hemp or bamboo fibers have been added; or it might use a honeycomb sandwich construction; or a coating might be applied to it so as to provide additional stiffening or damping. The chassis, frame, or basket,
21280-436: The system. At the 1939 New York World's Fair , a very large two-way public address system was mounted on a tower at Flushing Meadows . The eight 27" low-frequency drivers were designed by Rudy Bozak in his role as chief engineer for Cinaudagraph. High-frequency drivers were likely made by Western Electric . Altec Lansing introduced the 604 , which became their most famous coaxial Duplex driver, in 1943. It incorporated
21432-484: The target age group that the national or regional ratings board believes is appropriate for the player, ranging from all-ages, to a teenager-or-older, to mature, to the infrequent adult-only games. Most content review is based on the level of violence, both in the type of violence and how graphic it may be represented, and sexual content, but other themes such as drug and alcohol use and gambling that can influence children may also be identified. A primary identifier based on
21584-405: The term "video game" emerged around 1973. The Oxford English Dictionary cited a 10 November 1973 BusinessWeek article as the first printed use of the term. Though Bushnell believed the term came from a vending magazine review of Computer Space in 1971, a review of the major vending magazines Vending Times and Cashbox showed that the term may have come even earlier, appearing first in
21736-498: The term in an article in March 1973. In a September 1982 issue of RePlay , Adlum is credited with first naming these games as "video games": "RePlay's Eddie Adlum worked at 'Cash Box' when 'TV games' first came out. The personalities in those days were Bushnell, his sales manager Pat Karns, and a handful of other 'TV game' manufacturers like Henry Leyser and the McEwan brothers. It seemed awkward to call their products 'TV games', so borrowing
21888-534: The throat of a horn for added output level and control of radiation pattern. A tweeter is a high-frequency driver that reproduces the highest frequencies in a speaker system. A major problem in tweeter design is achieving wide angular sound coverage (off-axis response), since high-frequency sound tends to leave the speaker in narrow beams. Soft-dome tweeters are widely found in home stereo systems, and horn-loaded compression drivers are common in professional sound reinforcement. Ribbon tweeters have gained popularity as
22040-503: The type of gameplay, such as action game , role playing game , or shoot 'em up , though some genres have derivations from influential works that have defined that genre, such as roguelikes from Rogue , Grand Theft Auto clones from Grand Theft Auto III , and battle royale games from the film Battle Royale . The names may shift over time as players, developers and the media come up with new terms; for example, first-person shooters were originally called "Doom clones" based on
22192-454: The use of wide-range drivers can avoid undesirable interactions between multiple drivers caused by non-coincident driver location or crossover network issues but also may limit frequency response and output abilities (most especially at low frequencies). Hi-fi speaker systems built with wide-range drivers may require large, elaborate or, expensive enclosures to approach optimum performance. Full-range drivers often employ an additional cone called
22344-422: The video game industry, following the first game hardware releases and through 1983, had little structure. Video games quickly took off during the golden age of arcade video games from the late 1970s to early 1980s, but the newfound industry was mainly composed of game developers with little business experience. This led to numerous companies forming simply to create clones of popular games to try to capitalize on
22496-405: The voice coil; heating during operation changes resistance, causes physical dimensional changes, and if extreme, broils the varnish on the voice coil; it may even demagnetize permanent magnets. The suspension system keeps the coil centered in the gap and provides a restoring (centering) force that returns the cone to a neutral position after moving. A typical suspension system consists of two parts:
22648-399: Was capable of reproducing clear tones, but later revisions could also reproduce muffled speech . Alexander Graham Bell patented his first electric loudspeaker (a moving iron type capable of reproducing intelligible speech) as part of his telephone in 1876, which was followed in 1877 by an improved version from Ernst Siemens . During this time, Thomas Edison was issued a British patent for
22800-481: Was denied patents. Being unsuccessful in selling their product to telephone companies, in 1915 they changed their target market to radios and public address systems , and named their product Magnavox . Jensen was, for years after the invention of the loudspeaker, a part owner of The Magnavox Company. The moving-coil principle commonly used today in speakers was patented in 1925 by Edward W. Kellogg and Chester W. Rice . The key difference between previous attempts and
22952-434: Was initially some confusion in the arcade industry over what term should be used to describe the new games. He "wrestled with descriptions of this type of game," alternating between "TV game" and "television game" but "finally woke up one day" and said, "What the hell... video game!" While many games readily fall into a clear, well-understood definition of video games, new genres and innovations in game development have raised
23104-409: Was officially announced, as well as Windows CE and Gamepark 's own minimalistic operating system GPOS . The system was designed for multimedia content such as movies , MP3s , and the mobile television standard T-DMB . It may feature a 4" 16:9 widescreen aspect ratio screen with a display resolution of 480 x 272. Specifications The XGP Mini's specifications are similar to the XGP's, but
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