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89-789: The Automated Tropical Cyclone Forecasting System ( ATCF ) is a piece of software originally developed to run on a personal computer for the Joint Typhoon Warning Center (JTWC) in 1988, and the National Hurricane Center (NHC) in 1990. ATCF remains the main piece of forecasting software used for the United States Government , including the JTWC, NHC, and Central Pacific Hurricane Center . Other tropical cyclone centers in Australia and Canada developed similar software in

178-496: A $ 12,000 (equivalent to $ 29,000 in 2023) "personal workstation" might be a high-end PC like Macintosh II or IBM PS/2 Model 80 , low-end workstation, or a hybrid device like the NeXT Computer , all with similar, overlapping specifications. One differentiator between PC and workstation was that the latter was much more likely to have a graphics accelerator with support for a graphics standard like PHIGS or X Window , while

267-442: A TV set or an appropriately sized computer display , and is often used as a digital photo viewer, music and video player, TV receiver, and digital video recorder. HTPCs are also referred to as media center systems or media servers . The goal is to combine many or all components of a home theater setup into one box. HTPCs can also connect to services providing on-demand movies and TV shows. HTPCs can be purchased pre-configured with

356-401: A kit form and in limited volumes, and were of interest mostly to hobbyists and technicians. Minimal programming was done with toggle switches to enter instructions, and output was provided by front panel lamps. Practical use required adding peripherals such as keyboards, computer displays , disk drives , and printers . Micral N was the earliest commercial, non-kit microcomputer based on

445-569: A mainframe computer terminal to a PC connected to a network , but the most common form refers to the class of hardware offered by several current and defunct companies such as Sun Microsystems , Silicon Graphics , Apollo Computer , DEC , HP , NeXT , and IBM which powered the 3D computer graphics revolution of the late 1990s. Workstations formerly offered higher performance than mainstream personal computers , especially in CPU , graphics , memory, and multitasking. Workstations are optimized for

534-507: A multitasking operating system . Eventually, due to the influence of the IBM PC on the personal computer market , personal computers and home computers lost any technical distinction. Business computers acquired color graphics capability and sound, and home computers and game systems users used the same processors and operating systems as office workers. Mass-market computers had graphics capabilities and memory comparable to dedicated workstations of

623-544: A portable computer prototype called SCAMP (Special Computer APL Machine Portable) based on the IBM PALM processor with a Philips compact cassette drive, small CRT , and full function keyboard. SCAMP emulated an IBM 1130 minicomputer in order to run APL/1130. In 1973, APL was generally available only on mainframe computers, and most desktop sized microcomputers such as the Wang 2200 or HP 9800 offered only BASIC . Because SCAMP

712-469: A touchscreen display, which can be controlled using either a stylus pen or finger. Some tablets may use a hybrid or convertible design, offering a keyboard that can either be removed as an attachment, or a screen that can be rotated and folded directly over top the keyboard. Some tablets may use desktop-PC operating system such as Windows or Linux, or may run an operating system designed primarily for tablets. Many tablet computers have USB ports, to which

801-831: A 4096-color palette, stereo sound, Motorola 68000 CPU, 256 KB RAM, and 880 KB 3.5-inch disk drive, for US$ 1,295. IBM's first PC was introduced on 12 August 1981 setting what became a mass market standard for PC architecture. In 1982 The Computer was named Machine of the Year by Time magazine. Somewhat larger and more expensive systems were aimed at office and small business use. These often featured 80-column text displays but might not have had graphics or sound capabilities. These microprocessor-based systems were still less costly than time-shared mainframes or minicomputers. Workstations were characterized by high-performance processors and graphics displays, with large-capacity local disk storage, networking capability, and running under

890-410: A computer that could fit on a desk was remarkably small, leading to the desktop nomenclature. More recently, the phrase usually indicates a particular style of computer case . Desktop computers come in a variety of styles ranging from large vertical tower cases to small models which can be tucked behind or rest directly beneath (and support) LCD monitors . While the term desktop often refers to

979-557: A computer with a vertically aligned computer tower case , these varieties often rest on the ground or underneath desks. Despite this seeming contradiction, the term desktop does typically refer to these vertical tower cases as well as the horizontally aligned models which are designed to literally rest on top of desks and are therefore more appropriate to the desktop term, although both types qualify for this desktop label in most practical situations aside from certain physical arrangement differences. Both styles of these computer cases hold

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1068-506: A desk, including a keyboard, a small one-line display, and printer. The Wang 2200 microcomputer of 1973 had a full-size cathode ray tube (CRT) and cassette tape storage. These were generally expensive specialized computers sold for business or scientific uses. 1974 saw the introduction of what is considered by many to be the first true personal computer, the Altair 8800 created by Micro Instrumentation and Telemetry Systems (MITS) . Based on

1157-415: A few years before. Even local area networking, originally a way to allow business computers to share expensive mass storage and peripherals, became a standard feature of personal computers used at home. An increasingly important set of uses for personal computers relied on the ability of the computer to communicate with other computer systems, allowing interchange of information. Experimental public access to

1246-432: A graphics card installed. For this reason, desktop computers are usually preferred over laptops for gaming purposes. Unlike desktop computers, only minor internal upgrades (such as memory and hard disk drive) are feasible owing to the limited space and power available. Laptops have the same input and output ports as desktops, for connecting to external displays, mice, cameras, storage devices and keyboards. Laptops are also

1335-506: A hardware specification called Handheld PC was later released by Microsoft that run the Windows CE operating system. Workstation A workstation is a special computer designed for technical or scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems . The term workstation has been used loosely to refer to everything from

1424-432: A high-resolution display, a keyboard , and a mouse at a minimum, but also offers multiple displays, graphics tablets , and 3D mice for manipulating objects and navigating scenes. Workstations were the first segment of the computer market to present advanced accessories, and collaboration tools like videoconferencing . The increasing capabilities of mainstream PCs since the late 1990s have reduced distinction between

1513-484: A hinged second panel containing a flat display screen. Closing the laptop protects the screen and keyboard during transportation. Laptops generally have a rechargeable battery , enhancing their portability. To save power, weight and space, laptop graphics chips are in many cases integrated into the CPU or chipset and use system RAM, resulting in reduced graphics performance when compared to desktop machines, that more typically have

1602-408: A keyboard or mouse can be connected. Smartphones are often similar to tablet computers , the difference being that smartphones always have cellular integration. They are generally smaller than tablets, and may not have a slate form factor. The ultra-mobile PC (UMPC) is a small tablet computer . It was developed by Microsoft , Intel and Samsung , among others. Current UMPCs typically feature

1691-530: A larger screen or use with video projectors. IBM PC-compatible suitcase format computers became available soon after the introduction of the PC, with the Compaq Portable being a leading example of the type. Later models included a hard drive to give roughly equivalent performance to contemporary desktop computers. The development of thin plasma display and LCD screens permitted a somewhat smaller form factor, called

1780-459: A little more expensive compared to desktops, as the miniaturized components for laptops themselves are expensive. Notebook computers such as the TRS-80 Model 100 and Epson HX-20 had roughly the plan dimensions of a sheet of typing paper ( ANSI A or ISO A4 ). These machines had a keyboard with slightly reduced dimensions compared to a desktop system, and a fixed LCD display screen coplanar with

1869-411: A megapixel display (roughly 1000×1000 pixels), and one " MegaFLOPS " compute performance (at least one million floating-point operations per second). RFC 782 defines the workstation environment more generally as "hardware and software dedicated to serve a single user", and that it provisions additional shared resources. This is at least one order of magnitude beyond the capacity of the personal computer of

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1958-708: A microprocessor, the Intel 8008 . It was built starting in 1972, and a few hundred units were sold. This had been preceded by the Datapoint 2200 in 1970, for which the Intel 8008 had been commissioned, though not accepted for use. The CPU design implemented in the Datapoint 2200 became the basis for x86 architecture used in the original IBM PC and its descendants. In 1973, the IBM Los Gatos Scientific Center developed

2047-901: A much higher price. Workstations have typically driven advancements in CPU technology. All computers benefit from multi-processor and multicore designs (essentially, multiple processors on a die ). The multicore design was pioneered by IBM's POWER4 ; it and Intel Xeon have multiple CPUs, more on-die cache, and ECC memory. Some workstations are designed or certified for use with only one specific application such as AutoCAD , Avid Xpress Studio HD, or 3D Studio Max . The certification process increases workstation prices. Modern workstations are typically desktop computers with AMD or NVIDIA GPUs to do high-performance computing on software programs such as video editing , 3D modeling , computer-aided design , and rendering . By January 2009, all RISC -based workstation product lines had been discontinued: In early 2018, RISC workstations were reintroduced in

2136-483: A multiuser system reserved for one user. For example, the PDP-8 from Digital Equipment Corporation , is regarded as the first commercial minicomputer. Workstations have historically been more advanced than contemporary PCs, with more powerful CPU architectures, earlier networking, more advanced graphics, more memory, and multitasking with sophisticated operating systems like Unix. Because of their minicomputer heritage, from

2225-481: A new naming scheme: devices without an integrated phone are called Windows Mobile Classic instead of Pocket PC, while devices with an integrated phone and a touch screen are called Windows Mobile Professional. Palmtop PCs were miniature pocket-sized computers running DOS that first came about in the late 1980s, typically in a clamshell form factor with a keyboard. Non-x86 based devices were often called palmtop computers, examples being Psion Series 3 . In later years

2314-509: A personal workstation suitable for 2D CAD costing $ 5,000 (equivalent to $ 12,000 in 2023) to $ 25,000 (equivalent to $ 61,000 in 2023) was available from multiple vendors. Mid-range models capable of 3D graphics cost from $ 35,000 (equivalent to $ 86,000 in 2023) to $ 60,000 (equivalent to $ 147,000 in 2023), while high-end models overlapping with minicomputers cost from $ 80,000 (equivalent to $ 197,000 in 2023) to $ 100,000 (equivalent to $ 246,000 in 2023) or more. By then

2403-406: A preview of features that would later become staples of personal computers: e-mail , hypertext , word processing , video conferencing , and the mouse . The demonstration required technical support staff and a mainframe time-sharing computer that were far too costly for individual business use at the time. Early personal computers‍—‌generally called microcomputers‍—‌were often sold in

2492-661: A series of IBM POWER9 -based systems by Raptor Computing Systems. In October of 2024 System 76 introduces The Thelio Astra an Arm workstation aim for autonomous car industry. Most of the current workstation market uses x86-64 microprocessors. Operating systems include Windows , FreeBSD , Linux distributions , macOS , and Solaris . Some vendors also market commodity mono-socket systems as workstations. These are three types of workstations: A high-end desktop market segment includes workstations, with PC operating systems and components. Component product lines may be segmented, with premium components that are functionally similar to

2581-600: A shared mainframe computer system was demonstrated as early as 1973 in the Community Memory project, but bulletin board systems and online service providers became more commonly available after 1978. Commercial Internet service providers emerged in the late 1980s, giving public access to the rapidly growing network. In 1991, the World Wide Web was made available for public use. The combination of powerful personal computers with high-resolution graphics and sound, with

2670-470: A similar role for technical computing. Sun's thin clients include the Sun Ray product line. However, traditional workstations and PCs continued to drop in price and complexity as remote management tools for IT staff became available, undercutting this market. A high-end workstation of the early 1980s with the three Ms, or a "3M computer" (coined by Raj Reddy and his colleagues at CMU), has one megabyte of RAM,

2759-724: A single user, with high-resolution graphics (and so a workstation in the modern sense), is the Alto developed at Xerox PARC in 1973. Other early workstations include the Terak 8510/a (1977), Three Rivers PERQ (1979), and the later Xerox Star (1981). In the early 1980s, with the advent of 32-bit microprocessors such as the Motorola 68000 , several new competitors appeared, including Apollo Computer and Sun Microsystems , with workstations based on 68000 and Unix . Meanwhile, DARPA 's VLSI Project created several spinoff graphics products, such as

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2848-640: A television already in the home as the computer display, with low-detail blocky graphics and a limited color range, and text about 40 characters wide by 25 characters tall. Sinclair Research , a UK company, produced the ZX Series‍—;‌the ZX80 (1980), ZX81 (1981), and the ZX Spectrum ; the latter was introduced in 1982, and totaled 8 million unit sold. Following came the Commodore 64 , totaled 17 million units sold,

2937-406: A time, they are commonly connected to a local area network and run multi-user operating systems . Workstations are used for tasks such as computer-aided design , drafting and modeling, computation-intensive scientific and engineering calculations, image processing, architectural modeling, and computer graphics for animation and motion picture visual effects. Before the widespread use of PCs,

3026-423: A traditional operating system and perform computations locally, with storage on a remote server . These are intended to reduce the initial system purchase cost, and the total cost of ownership , by reducing the amount of administration required per user. This approach was first attempted as a replacement for PCs in office productivity applications, with the 3Station by 3Com . In the 1990s, X terminals filled

3115-584: A wide range of users, not just experienced electronics hobbyists who had the soldering skills to assemble a computer kit. The Apple I as delivered was still technically a kit computer, as it did not have a power supply, case, or keyboard when it was delivered to the Byte Shop. The first successfully mass-marketed personal computer to be announced was the Commodore PET after being revealed in January 1977. However, it

3204-542: Is a desktop computer that generally comprises a high-performance video card , processor and RAM, to improve the speed and responsiveness of demanding video games . An all-in-one computer (also known as single-unit PCs) is a desktop computer that combines the monitor and processor within a single unit. A separate keyboard and mouse are standard input devices, with some monitors including touchscreen capability. The processor and other working components are typically reduced in size relative to standard desktops, located behind

3293-495: Is a portable computer that provides the full capabilities of a desktop computer . Such computers are currently large laptops. This class of computers usually includes more powerful components and a larger display than generally found in smaller portable computers, and may have limited battery capacity or no battery. Netbooks , also called mini notebooks or subnotebooks , were a subgroup of laptops suited for general computing tasks and accessing web-based applications . Initially,

3382-585: Is speculation and there is no sign of it so far. In the history of computing , early experimental machines could be operated by a single attendant. For example, ENIAC which became operational in 1946 could be run by a single, albeit highly trained, person. This mode pre-dated the batch programming, or time-sharing modes with multiple users connected through terminals to mainframe computers. Computers intended for laboratory, instrumentation, or engineering purposes were built, and could be operated by one person in an interactive fashion. Examples include such systems as

3471-478: Is used to contrast with Mac, an Apple Macintosh computer. Since none of these Apple products were mainframes or time-sharing systems, they were all personal computers but not PC (brand) computers. In 1995, a CBS segment on the growing popularity of PC reported: "For many newcomers PC stands for Pain and Confusion." The "brain" [computer] may one day come down to our level [of the common people] and help with our income-tax and book-keeping calculations. But this

3560-527: The Apple I computer circuit board, which was fully prepared and contained about 30 chips. The Apple I computer differed from the other kit-style hobby computers of era. At the request of Paul Terrell , owner of the Byte Shop , Jobs and Wozniak were given their first purchase order, for 50 Apple I computers, only if the computers were assembled and tested and not a kit computer. Terrell wanted to have computers to sell to

3649-578: The Bendix G15 and LGP-30 of 1956, and the Soviet MIR series of computers developed from 1965 to 1969. By the early 1970s, people in academic or research institutions had the opportunity for single-person use of a computer system in interactive mode for extended durations, although these systems would still have been too expensive to be owned by a single person. The personal computer was made possible by major advances in semiconductor technology. In 1959,

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3738-634: The Galaksija (1983) introduced in Yugoslavia and the Amstrad CPC series (464–6128). In the same year, the NEC PC-98 was introduced, which was a very popular personal computer that sold in more than 18 million units. Another famous personal computer, the revolutionary Amiga 1000 , was unveiled by Commodore on 23 July 1985. The Amiga 1000 featured a multitasking, windowing operating system, color graphics with

3827-457: The Silicon Graphics 3130 . Target markets were differentiated, with Sun and Apollo considered to be network workstations and SGI as graphics workstations. RISC CPUs increased in the mid-1980s, typical of workstation vendors. Competition between RISC vendors lowered CPU prices to as little as $ 10 per MIPS, much less expensive than the Intel 80386 ; after large price cuts in 1987 and 1988,

3916-405: The lunchbox computer. The screen formed one side of the enclosure, with a detachable keyboard and one or two half-height floppy disk drives, mounted facing the ends of the computer. Some variations included a battery, allowing operation away from AC outlets. A laptop computer is designed for portability with clamshell design, where the keyboard and computer components are on one panel, with

4005-590: The macOS operating system), and free and open-source , Unix-like operating systems, such as Linux . Other notable platforms until the 1990s were the Amiga from Commodore , and the PC-98 from NEC . The term PC is an initialism for personal computer. While the IBM Personal Computer incorporated the designation into its model name, the term originally described personal computers of any brand. In some contexts, PC

4094-460: The silicon integrated circuit (IC) chip was developed by Robert Noyce at Fairchild Semiconductor , and the metal–oxide–semiconductor (MOS) transistor was developed by Mohamed Atalla and Dawon Kahng at Bell Labs . The MOS integrated circuit was commercialized by RCA in 1964, and then the silicon-gate MOS integrated circuit was developed by Federico Faggin at Fairchild in 1968. Faggin later used silicon-gate MOS technology to develop

4183-412: The visualization and manipulation of different types of complex data such as 3D mechanical design, engineering simulations like computational fluid dynamics , animation , video editing , image editing , medical imaging , image rendering, computational science , generating mathematical plots , and software development . Typically, the form factor is that of a desktop computer , which consists of

4272-639: The "1977 trinity". Mass-market, ready-assembled computers had arrived, and allowed a wider range of people to use computers, focusing more on software applications and less on development of the processor hardware. In 1977 the Heath company introduced personal computer kits known as Heathkits , starting with the Heathkit H8 , followed by the Heathkit H89 in late 1979. With the purchase of the Heathkit H8 you would obtain

4361-444: The 1960s had to write their own programs to do any useful work with computers. While personal computer users may develop their applications, usually these systems run commercial software , free-of-charge software (" freeware "), which is most often proprietary, or free and open-source software , which is provided in ready-to-run , or binary form. Software for personal computers is typically developed and distributed independently from

4450-479: The 1990s. The data files with ATCF lie within three decks, known as the a-, b-, and f-decks. The a-decks include forecast information, the b-decks contain a history of center fixes at synoptic hours, and the f-decks include the various fixes made by various analysis center at various times. In the years since its introduction, it has been adapted to Unix and Linux platforms. The need for a more modernized method for forecasting tropical cyclones had become apparent by

4539-547: The 8-bit Intel 8080 Microprocessor, the Altair is widely recognized as the spark that ignited the microcomputer revolution as the first commercially successful personal computer. The computer bus designed for the Altair was to become a de facto standard in the form of the S-100 bus , and the first programming language for the machine was Microsoft's founding product, Altair BASIC . In 1976, Steve Jobs and Steve Wozniak sold

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4628-621: The NHC, National Centers for Environmental Prediction and the Central Pacific Hurricane Center . This provided the NHC with a multitasking software environment which allowed them to improve efficiency and cut the time required to make a forecast by 25% or 1 hour. ATCF was originally developed for use within DOS , before later being adapted to Unix and Linux. Systems within ATCF are identified with

4717-691: The PCs and workstations. Typical 1980s workstations have expensive proprietary hardware and operating systems to categorically distinguish from standardized PCs. From the 1990s and 2000s, IBM 's RS/6000 and IntelliStation have RISC -based POWER CPUs running AIX , and its IBM PC Series and Aptiva corporate and consumer PCs have Intel x86 CPUs. However, by the early 2000s, this difference largely disappeared, since workstations use highly commoditized hardware dominated by large PC vendors, such as Dell , Hewlett-Packard , and Fujitsu , selling x86-64 systems running Windows or Linux . Workstations are older than

4806-622: The Quadra 700 was an intriguing option at a fraction of the cost" as resource-intensive software such as Infini-D brought "studio-quality 3D rendering and animations to the home desktop". The Quadra 700 can run A/UX 3.0, making it a Unix workstation. Another example is the Nvidia GeForce 256 consumer graphics card, which spawned the Quadro workstation card, which has the same GPU but different driver support and certifications for CAD applications and

4895-533: The Windows XP, Windows Vista, Windows 7, or Linux operating system , and low-voltage Intel Atom or VIA C7-M processors. A pocket PC is a hardware specification for a handheld-sized computer ( personal digital assistant , PDA) that runs the Microsoft Windows Mobile operating system . It may have the capability to run an alternative operating system like NetBSD or Linux . Pocket PCs have many of

4984-469: The ability to be programmed in both APL and BASIC for engineers, analysts, statisticians, and other business problem-solvers. In the late 1960s such a machine would have been nearly as large as two desks and would have weighed about half a ton. Another desktop portable APL machine, the MCM/70 , was demonstrated in 1973 and shipped in 1974. It used the Intel 8008 processor. A seminal step in personal computing

5073-406: The basin acronym are used internally by the basin's respective Tropical Cyclone Warning Centers and Regional Specialized Meteorological Center . Numbers in the 80s are used for training purposes and can be reused. Numbers in the 90s are used for areas of interest, sometimes referred to as invests or areas of disturbed weather, and are also reused within any particular year. Their status is listed

5162-473: The basin prefix (AL – North Atlantic Ocean, CP – Central North Pacific Ocean, EP – North-East Pacific Ocean, IO – North Indian Ocean, SH – Southern Hemisphere, SL – South Atlantic Ocean, WP – North-West Pacific Ocean) and then followed by two digit number between 01 and 49 for active tropical cyclones, which becomes incremented with each new system, and then the year associated with the system (e.g. EP202015 for Hurricane Patricia ). Numbers from 50 through 79 after

5251-468: The capabilities of desktop PCs . Numerous applications are available for handhelds adhering to the Microsoft Pocket PC specification, many of which are freeware . Microsoft-compliant Pocket PCs can also be used with many other add-ons like GPS receivers , barcode readers, RFID readers and cameras. In 2007, with the release of Windows Mobile 6, Microsoft dropped the name Pocket PC in favor of

5340-573: The chassis and CPU card to assemble yourself, additional hardware such as the H8-1 memory board that contained 4k of RAM could also be purchased in order to run software. The Heathkit H11 model was released in 1978 and was one of the first 16-bit personal computers; however, due to its high retail cost of $ 1,295 was discontinued in 1982. During the early 1980s, home computers were further developed for household use, with software for personal productivity, programming and games. They typically could be used with

5429-449: The companies that make the products tend to have comprehensive repair/replacement plans. As the distinction between workstation and PC fades, however, workstation manufacturers have increasingly employed "off-the-shelf" PC components and graphics solutions rather than proprietary hardware or software. Some "low-cost" workstations are still expensive by PC standards but offer binary compatibility with higher-end workstations and servers made by

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5518-552: The cost of logic circuitry, enabling IBM to make it inexpensive. The machine is codenamed CADET and was initially rented for $ 1000 per month. In 1965, the IBM 1130 scientific computer became the successor to 1620. Both of these systems run Fortran and other languages. They are built into roughly desk-sized cabinets, with console typewriters. They have optional add-on disk drives, printers, and both paper-tape and punched-card I/O. Early workstations were generally dedicated minicomputers ,

5607-422: The first personal computer (PC). The first computer that might qualify as a workstation is the IBM 1620 , a small scientific computer designed to be used interactively by a single person sitting at the console. It was introduced in 1959. One peculiar feature of the machine is that it lacks any arithmetic circuitry. To perform addition, it requires a memory-resident table of decimal addition rules. This reduced

5696-475: The first single-chip microprocessor , the Intel 4004 , in 1971. The first microcomputers , based on microprocessors, were developed during the early 1970s. Widespread commercial availability of microprocessors, from the mid-1970s onwards, made computers cheap enough for small businesses and individuals to own. In what was later to be called the Mother of All Demos , SRI researcher Douglas Engelbart in 1968 gave

5785-459: The following ways within the associated data file: DB – disturbance, TD – tropical depression, TS – tropical storm, TY – typhoon, ST – super typhoon, TC – tropical cyclone, HU – hurricane, SD – subtropical depression, SS – subtropical storm, EX – extratropical systems, IN – inland, DS – dissipating, LO – low, WV – tropical wave, ET – extrapolated, and XX – unknown. Times used are in a four digit year, month, day, and hour format. The "A deck" contains

5874-499: The forecast at that time. In the 1990s, other countries developed similar tropical cyclone forecasting software. The Bureau of Meteorology in Australia developed the Australian Tropical Cyclone Workstation. The Canadian Hurricane Centre developed Canadian Hurricane Centre Forecaster's Workstation, which runs on Unix workstations . Personal computer Institutional or corporate computer owners in

5963-421: The former usually depended on software rendering or proprietary accelerators. The computer animation industry's needs typically caused improvements in graphical technology, with CAD using the same improvements later. BYTE predicted in 1989 "Soon, the only way we'll be able to tell the difference between traditional workstations and PCs will be by the operating system they run", with the former running Unix and

6052-399: The hardware or operating system manufacturers. Many personal computer users no longer need to write their programs to make any use of a personal computer, although end-user programming is still feasible. This contrasts with mobile systems, where software is often available only through a manufacturer-supported channel, and end-user program development may be discouraged by lack of support by

6141-548: The infrastructure provided by the Internet, and the standardization of access methods of the Web browsers , established the foundation for a significant fraction of modern life, from bus time tables through unlimited distribution of free videos through to online user-edited encyclopedias. A workstation is a high-end personal computer designed for technical, mathematical, or scientific applications. Intended primarily to be used by one person at

6230-507: The introduction of the IBM PC, portable computers consisting of a processor, display, disk drives and keyboard, in a suit-case style portable housing, allowed users to bring a computer home from the office or to take notes at a classroom. Examples include the Osborne 1 and Kaypro ; and the Commodore SX-64 . These machines were AC-powered and included a small CRT display screen. The form factor

6319-549: The keyboard. These displays were usually small, with 8 to 16 lines of text, sometimes only 40 columns line length. However, these machines could operate for extended times on disposable or rechargeable batteries. Although they did not usually include internal disk drives, this form factor often included a modem for telephone communication and often had provisions for external cassette or disk storage. Later, clamshell format laptop computers with similar small plan dimensions were also called notebooks . A desktop replacement computer

6408-598: The latter running OS/2 , classic Mac OS , and/or Unix. Many workstations by then had some method to run increasingly popular and powerful PC software such as Lotus 1-2-3 or Microsoft Word . The magazine demonstrated that year that an individual could build a workstation with commodity components with specifications comparable to commercially available low-end workstations. Workstations often featured SCSI or Fibre Channel disk storage systems, high-end 3D accelerators , single or multiple 64-bit processors , large amounts of RAM , and well-designed cooling. Additionally,

6497-455: The manufacturer. Since the early 1990s, Microsoft operating systems (first with MS-DOS and then with Windows ) and Intel hardware – collectively called Wintel – have dominated the personal computer market, and today the term PC normally refers to the ubiquitous Wintel platform. Alternatives to Windows occupy a minority share of the market; these include the Mac platform from Apple (running

6586-536: The mid-1980s. At that time Department of Defense was using acetate , grease pencils , and disparate computer programs to forecast tropical cyclones. The ATCF software was developed by the Naval Research Laboratory for the Joint Typhoon Warning Center (JTWC) in Monterey, California beginning in 1986, and used since 1988. During 1990s the system was adapted by the National Hurricane Center (NHC) for use at

6675-450: The monitor, and configured similarly to laptops. A nettop computer was introduced by Intel in February 2008, characterized by low cost and lean functionality. These were intended to be used with an Internet connection to run Web browsers and Internet applications. A Home theater PC (HTPC) combines the functions of a personal computer and a digital video recorder . It is connected to

6764-551: The official track and intensity forecast, as well as the model guidance, also known as the objective aids. The "B deck" contains the storm's track information at synoptic hours (0000, 0600, 1200, and 1800 UTC ). The "F deck" contains what are known as position fixes and intensity estimates for the associated tropical cyclone, based on satellite data on the cyclone derived by the Dvorak technique . The "E deck" contains information regarding position error and probabilistic information regarding

6853-503: The primary defining characteristic of netbooks was the lack of an optical disc drive, smaller size, and lower performance than full-size laptops. By mid-2009 netbooks had been offered to users "free of charge", with an extended service contract purchase of a cellular data plan. Ultrabooks and Chromebooks have since filled the gap left by Netbooks. Unlike the generic Netbook name, Ultrabook and Chromebook are technically both specifications by Intel and Google respectively. A tablet uses

6942-493: The required hardware and software needed to add television programming to the PC, or can be assembled from components. Keyboard computers are computers inside of keyboards, generally still designed to be connected to an external computer monitor or television . Examples include the Atari ST , Amstrad CPC , BBC Micro , Commodore 64 , MSX , Raspberry Pi 400 , and the ZX Spectrum . The potential utility of portable computers

7031-472: The same as the consumer market, and the price differential narrowed. For example, most Macintosh Quadra computers were originally intended for scientific or design work, all with the Motorola 68040 CPU, backward compatible with 68000 Macintoshes. The consumer Macintosh IIcx and Macintosh IIci models can be upgraded to the Quadra 700 . "In an era when many professionals preferred Silicon Graphics workstations,

7120-422: The same vendor. This allows software development to take place on low-cost (relative to the server) desktop machines. Workstations diversified to the lowest possible price point as opposed to performance, called the thin client or network computer . Dependent upon a network and server, this reduces the machine to having no hard drive, and only the CPU, keyboard, mouse, and screen. Some diskless nodes still run

7209-653: The start workstations have run professional and expensive software such as CAD and graphics design, as opposed to PCs' games and text editors. The Lisp machines developed at MIT in the early 1970s pioneered some workstation principles, as high-performance, networked, single-user systems intended for heavily interactive use. Lisp Machines were commercialized beginning 1980 by companies like Symbolics , Lisp Machines , Texas Instruments (the TI Explorer ), and Xerox (the Interlisp-D workstations). The first computer designed for

7298-418: The systems hardware components such as the motherboard , processor chip and other internal operating parts. Desktop computers have an external monitor with a display screen and an external keyboard, which are plugged into ports on the back of the computer case. Desktop computers are popular for home and business computing applications as they leave space on the desk for multiple monitors . A gaming computer

7387-486: The time. The original 1981 IBM Personal Computer has 16 KB memory, a text-only display, and floating-point performance around 1  kFLOPS ( 30 kFLOPS with the optional 8087 math coprocessor. Other features beyond the typical personal computer include networking, graphics acceleration, and high-speed internal and peripheral data buses. Another goal was to bring the price below one " megapenny ", that is, less than $ 10,000 (equivalent to $ 28,000 in 2023), which

7476-448: Was achieved in the late 1980s. Throughout the early to mid-1990s, many workstations cost from $ 15,000 to $ 100,000 (equivalent to $ 200,000 in 2023) or more. The more widespread adoption of these technologies into mainstream PCs was a direct factor in the decline of the workstation as a separate market segment: Since the late 1990s, the workstation and consumer markets have further merged. Many low-end workstation components are now

7565-455: Was apparent early on. Alan Kay described the Dynabook in 1972, but no hardware was developed. The Xerox NoteTaker was produced in a very small experimental batch around 1978. In 1975, the IBM 5100 could be fit into a transport case, making it a portable computer, but it weighed about 50 pounds. Such early portable computers were termed luggables by journalists owing to their heft. Before

7654-681: Was back-ordered and not available until later that year. Three months later (April), the Apple II (usually referred to as the Apple) was announced with the first units being shipped 10 June 1977, and the TRS-80 from Tandy Corporation / Tandy Radio Shack following in August 1977, which sold over 100,000 units during its lifetime. Together, especially in the North American market, these 3 machines were referred to as

7743-401: Was intended to allow these systems to be taken on board an airplane as carry-on baggage, though their high power demand meant that they could not be used in flight. The integrated CRT display made for a relatively heavy package, but these machines were more portable than their contemporary desktop equals. Some models had standard or optional connections to drive an external video monitor, allowing

7832-453: Was the 1973 Xerox Alto , developed at Xerox 's Palo Alto Research Center (PARC) . It had a graphical user interface ( GUI ) which later served as inspiration for Apple's Macintosh , and Microsoft's Windows operating system. The Alto was a demonstration project, not commercialized, as the parts were too expensive to be affordable. Also in 1973 Hewlett Packard introduced fully BASIC programmable microcomputers that fit entirely on top of

7921-490: Was the first to emulate APL/1130 performance on a portable, single user computer, PC Magazine in 1983 designated SCAMP a "revolutionary concept" and "the world's first personal computer". This seminal, single user portable computer now resides in the Smithsonian Institution , Washington, D.C.. Successful demonstrations of the 1973 SCAMP prototype led to the IBM 5100 portable microcomputer launched in 1975 with

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