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102-595: AArch64 or ARM64 is the 64-bit Execution state of the ARM architecture family . It was first introduced with the Armv8-A architecture, and has had many extension updates. Extension: Data gathering hint (ARMv8.0-DGH). AArch64 was introduced in ARMv8-A and is included in subsequent versions of ARMv8-A. It was also introduced in ARMv8-R as an option, after its introduction in ARMv8-A; it

204-409: A 32-bit to a 64-bit architecture is a fundamental alteration, as most operating systems must be extensively modified to take advantage of the new architecture, because that software has to manage the actual memory addressing hardware. Other software must also be ported to use the new abilities; older 32-bit software may be supported either by virtue of the 64-bit instruction set being a superset of

306-837: A 64-bit computer architecture generally has integer and addressing registers that are 64 bits wide, allowing direct support for 64-bit data types and addresses. However, a CPU might have external data buses or address buses with different sizes from the registers, even larger (the 32-bit Pentium had a 64-bit data bus, for instance). Processor registers are typically divided into several groups: integer , floating-point , single instruction, multiple data (SIMD), control , and often special registers for address arithmetic which may have various uses and names such as address , index , or base registers . However, in modern designs, these functions are often performed by more general purpose integer registers. In most processors, only integer or address-registers can be used to address data in memory;

408-505: A public company via an initial public offering, listing the company on the Nasdaq Global Select Market under the ticker symbol GOOG. At that time Page, Brin and Schmidt agreed to work together at Google for 20 years, until the year 2024. The company offered 19,605,052 shares at a price of $ 85 per share. Shares were sold in an online auction format using a system built by Morgan Stanley and Credit Suisse , underwriters for

510-613: A virtual machine of a 16- or 32-bit operating system to run 16-bit applications or use one of the alternatives for NTVDM . Mac OS X 10.4 "Tiger" and Mac OS X 10.5 "Leopard" had only a 32-bit kernel, but they can run 64-bit user-mode code on 64-bit processors. Mac OS X 10.6 "Snow Leopard" had both 32- and 64-bit kernels, and, on most Macs, used the 32-bit kernel even on 64-bit processors. This allowed those Macs to support 64-bit processes while still supporting 32-bit device drivers; although not 64-bit drivers and performance advantages that can come with them. Mac OS X 10.7 "Lion" ran with

612-508: A $ 250,000 investment. Google received money from two other angel investors in 1998: Amazon.com founder Jeff Bezos , and entrepreneur Ram Shriram . Page and Brin had first approached Shriram, who was a venture capitalist, for funding and counsel, and Shriram invested $ 250,000 in Google in February 1998. Shriram knew Bezos because Amazon had acquired Junglee, at which Shriram was the president. It

714-711: A 16  MiB ( 16 × 1024 bytes ) address space. 32-bit superminicomputers , such as the DEC VAX , became common in the 1970s, and 32-bit microprocessors, such as the Motorola 68000 family and the 32-bit members of the x86 family starting with the Intel 80386 , appeared in the mid-1980s, making 32 bits something of a de facto consensus as a convenient register size. A 32-bit address register meant that 2 addresses, or 4  GB of random-access memory (RAM), could be referenced. When these architectures were devised, 4 GB of memory

816-423: A 32- or 64-bit Java virtual machine with no modification. The lengths and precision of all the built-in types, such as char , short , int , long , float , and double , and the types that can be used as array indices, are specified by the standard and are not dependent on the underlying architecture. Java programs that run on a 64-bit Java virtual machine have access to a larger address space. Speed

918-605: A 64-bit kernel on more Macs, and OS X 10.8 "Mountain Lion" and later macOS releases only have a 64-bit kernel. On systems with 64-bit processors, both the 32- and 64-bit macOS kernels can run 32-bit user-mode code, and all versions of macOS up to macOS Mojave (10.14) include 32-bit versions of libraries that 32-bit applications would use, so 32-bit user-mode software for macOS will run on those systems. The 32-bit versions of libraries have been removed by Apple in macOS Catalina (10.15). Linux and most other Unix-like operating systems, and

1020-497: A chief executive officer, which had been made verbally during investment negotiations. Eric was not initially enthusiastic about joining Google either, as the company's full potential had not yet been widely recognized at the time, and as he was occupied with his responsibilities at Novell where he was CEO. As part of him joining, Eric agreed to buy $ 1 million of Google preferred stocks as a way to show his commitment and to provide funds Google needed. On August 19, 2004, Google became

1122-451: A citation to Li's earlier RankDex patent; Li later went on to create the Chinese search engine Baidu . Eventually, they changed the name to Google ; the name of the search engine was a misspelling of the word googol , a very large number written 10 (1 followed by 100 zeros), picked to signify that the search engine was intended to provide large quantities of information. Google

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1224-774: A driver for a 32-bit PCI device asking the device to DMA data into upper areas of a 64-bit machine's memory could not satisfy requests from the operating system to load data from the device to memory above the 4 gigabyte barrier, because the pointers for those addresses would not fit into the DMA registers of the device. This problem is solved by having the OS take the memory restrictions of the device into account when generating requests to drivers for DMA, or by using an input–output memory management unit (IOMMU). As of August 2023 , 64-bit architectures for which processors are being manufactured include: Most architectures of 64 bits that are derived from

1326-484: A given process and can have implications for efficient processor cache use. Maintaining a partial 32-bit model is one way to handle this, and is in general reasonably effective. For example, the z/OS operating system takes this approach, requiring program code to reside in 31-bit address spaces (the high order bit is not used in address calculation on the underlying hardware platform) while data objects can optionally reside in 64-bit regions. Not all such applications require

1428-743: A large address space or manipulate 64-bit data items, so these applications do not benefit from these features. x86-based 64-bit systems sometimes lack equivalents of software that is written for 32-bit architectures. The most severe problem in Microsoft Windows is incompatible device drivers for obsolete hardware. Most 32-bit application software can run on a 64-bit operating system in a compatibility mode , also termed an emulation mode, e.g., Microsoft WoW64 Technology for IA-64 and AMD64. The 64-bit Windows Native Mode driver environment runs atop 64-bit NTDLL.DLL , which cannot call 32-bit Win32 subsystem code (often devices whose actual hardware function

1530-461: A larger percentage of control over the company to themselves. Larry and Sergey however insisted on taking investments from both. Both venture companies finally agreed to investing jointly $ 12.5 million each due to their belief in Google's great potential and through the mediation of earlier angel investors Ron Conway and Ram Shriram who had contacts in the venture companies. In March 1999, the company moved its offices to Palo Alto, California , which

1632-476: A meeting with Page and Brin and his Granite co-founder Andy Bechtolsheim. The meeting was set for 8 a.m. at the front porch of David's home in Palo Alto and it had to be brief because Andy had another meeting at Cisco, where he now worked after the acquisition, at 9 a.m. Andy briefly tested a demo of the website, liked what he saw, and then went back to his car to grab the check. David Cheriton later also joined in with

1734-428: A memo throughout the company that argued bias and " Google's Ideological Echo Chamber " clouded their thinking about diversity and inclusion, and that it is also biological factors, not discrimination alone, that cause the average woman to be less interested than men in technical positions. Google CEO Sundar Pichai accused Damore of violating company policy by "advancing harmful gender stereotypes in our workplace", and he

1836-410: A monopoly on the market harming publishers, advertisers, and consumers. In 2022, Google began accepting requests for the removal of phone numbers, physical addresses and email addresses from its search results. It had previously accepted requests for removing confidential data only, such as Social Security numbers, bank account and credit card numbers, personal signatures, and medical records. Even with

1938-1093: A multitude of products and services beyond Google Search , many of which hold dominant market positions. These products address a wide range of use cases, including email ( Gmail ), navigation and mapping ( Waze , Maps and Earth ), cloud computing ( Cloud ), web navigation ( Chrome ), video sharing ( YouTube ), productivity ( Workspace ), operating systems ( Android ), cloud storage ( Drive ), language translation ( Translate ), photo storage ( Photos ), videotelephony ( Meet ), smart home ( Nest ), smartphones ( Pixel ), wearable technology ( Pixel Watch and Fitbit ), music streaming ( YouTube Music ), video on demand ( YouTube TV ), AI ( Google Assistant and Gemini ), machine learning APIs ( TensorFlow ), AI chips ( TPU ), and more. Discontinued Google products include gaming ( Stadia ), Glass , Google+ , Reader , Play Music , Nexus , Hangouts , and Inbox by Gmail . Google's other ventures outside of internet services and consumer electronics include quantum computing ( Sycamore ), self-driving cars ( Waymo , formerly

2040-521: A problem. 64-bit drivers were not provided for many older devices, which could consequently not be used in 64-bit systems. Driver compatibility was less of a problem with open-source drivers, as 32-bit ones could be modified for 64-bit use. Support for hardware made before early 2007, was problematic for open-source platforms, due to the relatively small number of users. 64-bit versions of Windows cannot run 16-bit software . However, most 32-bit applications will work well. 64-bit users are forced to install

2142-474: A research project by Larry Page and Sergey Brin while they were both PhD students at Stanford University in California. The project initially involved an unofficial "third founder", Scott Hassan , the original lead programmer who wrote much of the code for the original Google Search engine, but he left before Google was officially founded as a company; Hassan went on to pursue a career in robotics and founded

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2244-574: A service which searches the text found in books in its database and shows limited previews or and the full book where allowed. Google expanded its search services to include shopping (launched originally as Froogle in 2002), finance (launched 2006), and flights (launched 2011). Google generates most of its revenues from advertising. This includes sales of apps, purchases made in-app, digital content products on Google and YouTube, Android and licensing and service fees, including fees received for Google Cloud offerings. Forty-six percent of this profit

2346-405: A single integer register can store the memory address to any location in the computer's physical or virtual memory . Therefore, the total number of addresses to memory is often determined by the width of these registers. The IBM System/360 of the 1960s was an early 32-bit computer; it had 32-bit integer registers, although it only used the low order 24 bits of a word for addresses, resulting in

2448-1005: A third in December affecting the entire suite of Google applications. All three outages were resolved within hours. In 2021, the Alphabet Workers Union was founded, composed mostly of Google employees. In January 2021, the Australian Government proposed legislation that would require Google and Facebook to pay media companies for the right to use their content. In response, Google threatened to close off access to its search engine in Australia. In March 2021, Google reportedly paid $ 20 million for Ubisoft ports on Google Stadia. Google spent "tens of millions of dollars" on getting major publishers such as Ubisoft and Take-Two to bring some of their biggest games to Stadia. In April 2021, The Wall Street Journal reported that Google ran

2550-453: A years-long program called "Project Bernanke" that used data from past advertising bids to gain an advantage over competing for ad services. This was revealed in documents concerning the antitrust lawsuit filed by ten US states against Google in December. In September 2021, the Australian government announced plans to curb Google's capability to sell targeted ads, claiming that the company has

2652-514: Is an abbreviation of "Long, Pointer, 64". Other models are the ILP64 data model in which all three data types are 64 bits wide, and even the SILP64 model where short integers are also 64 bits wide. However, in most cases the modifications required are relatively minor and straightforward, and many well-written programs can simply be recompiled for the new environment with no changes. Another alternative

2754-613: Is complementary to, and does not replace, the NEON extensions. A 512-bit SVE variant has already been implemented on the Fugaku supercomputer using the Fujitsu A64FX ARM processor; this computer was the fastest supercomputer in the world for two years, from June 2020 to May 2022. A more flexible version, 2x256 SVE, was implemented by the AWS Graviton3 ARM processor. SVE is supported by

2856-483: Is emulated in user mode software, like Winprinters). Because 64-bit drivers for most devices were unavailable until early 2007 (Vista x64), using a 64-bit version of Windows was considered a challenge. However, the trend has since moved toward 64-bit computing, more so as memory prices dropped and the use of more than 4 GB of RAM increased. Most manufacturers started to provide both 32-bit and 64-bit drivers for new devices, so unavailability of 64-bit drivers ceased to be

2958-432: Is home to several prominent Silicon Valley technology start-ups. The next year, Google began selling advertisements associated with search keywords against Page and Brin's initial opposition toward an advertising-funded search engine. To maintain an uncluttered page design, advertisements were solely text-based. In June 2000, it was announced that Google would become the default search engine provider for Yahoo! , one of

3060-683: Is not included in ARMv8-M. The main opcode for selecting which group an A64 instruction belongs to is at bits 25–28. Announced in October 2011, ARMv8-A represents a fundamental change to the ARM architecture. It adds an optional 64-bit Execution state, named "AArch64", and the associated new "A64" instruction set, in addition to a 32-bit Execution state, "AArch32", supporting the 32-bit "A32" (original 32-bit Arm) and "T32" (Thumb/Thumb-2) instruction sets. The latter instruction sets provide user-space compatibility with

3162-413: Is not the only factor to consider in comparing 32-bit and 64-bit processors. Applications such as multi-tasking, stress testing, and clustering – for high-performance computing (HPC) – may be more suited to a 64-bit architecture when deployed appropriately. For this reason, 64-bit clusters have been widely deployed in large organizations, such as IBM, HP, and Microsoft. Summary: A common misconception

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3264-441: Is often written with implicit assumptions about the widths of data types. C code should prefer ( u ) intptr_t instead of long when casting pointers into integer objects. A programming model is a choice made to suit a given compiler, and several can coexist on the same OS. However, the programming model chosen as the primary model for the OS application programming interface (API) typically dominates. Another consideration

3366-504: Is often, but not always, based on 64-bit units of data. For example, although the x86 / x87 architecture has instructions able to load and store 64-bit (and 32-bit) floating-point values in memory, the internal floating-point data and register format is 80 bits wide, while the general-purpose registers are 32 bits wide. In contrast, the 64-bit Alpha family uses a 64-bit floating-point data and register format, and 64-bit integer registers. Many computer instruction sets are designed so that

3468-418: Is that 64-bit architectures are no better than 32-bit architectures unless the computer has more than 4 GB of random-access memory . This is not entirely true: The main disadvantage of 64-bit architectures is that, relative to 32-bit architectures, the same data occupies more space in memory (due to longer pointers and possibly other types, and alignment padding). This increases the memory requirements of

3570-489: Is the IBM AS/400 , software for which is compiled into a virtual instruction set architecture (ISA) called Technology Independent Machine Interface (TIMI); TIMI code is then translated to native machine code by low-level software before being executed. The translation software is all that must be rewritten to move the full OS and all software to a new platform, as when IBM transitioned the native instruction set for AS/400 from

3672-503: Is the LLP64 model, which maintains compatibility with 32-bit code by leaving both int and long as 32-bit. LL refers to the long long integer type, which is at least 64 bits on all platforms, including 32-bit environments. There are also systems with 64-bit processors using an ILP32 data model, with the addition of 64-bit long long integers; this is also used on many platforms with 32-bit processors. This model reduces code size and

3774-792: Is the Exynos 5433 used in the Galaxy Note 4 , which features two clusters of four Cortex-A57 and Cortex-A53 cores in a big.LITTLE configuration; but it will run only in AArch32 mode. ARMv8-A includes the VFPv3/v4 and advanced SIMD (Neon) as standard features in both AArch32 and AArch64. It also adds cryptography instructions supporting AES , SHA-1 / SHA-256 and finite field arithmetic . An ARMv8-A processor can support one or both of AArch32 and AArch64; it may support AArch32 and AArch64 at lower Exception levels and only AArch64 at higher Exception levels. For example,

3876-400: Is the data model used for device drivers . Drivers make up the majority of the operating system code in most modern operating systems (although many may not be loaded when the operating system is running). Many drivers use pointers heavily to manipulate data, and in some cases have to load pointers of a certain size into the hardware they support for direct memory access (DMA). As an example,

3978-438: Is the first processor to implement this extended support, bringing several new features and improvements to the real-time domain. 64-bit From the software perspective, 64-bit computing means the use of machine code with 64-bit virtual memory addresses. However, not all 64-bit instruction sets support full 64-bit virtual memory addresses; x86-64 and AArch64 for example, support only 48 bits of virtual address, with

4080-570: Is what allowed them to open up their original shop in Menlo Park, California . Craig Silverstein , a fellow PhD student at Stanford, was hired as the first employee. After some additional, small investments through the end of 1998 to early 1999, a new $ 25 million round of funding was announced on June 7, 1999, with major investors including the venture capital firms Kleiner Perkins and Sequoia Capital . Both firms were initially reticent about investing jointly in Google, as each wanted to retain

4182-633: The Apple Watch Series 4 and 5. Many 64-bit platforms today use an LP64 model (including Solaris, AIX , HP-UX , Linux, macOS, BSD, and IBM z/OS). Microsoft Windows uses an LLP64 model. The disadvantage of the LP64 model is that storing a long into an int truncates. On the other hand, converting a pointer to a long will "work" in LP64. In the LLP64 model, the reverse is true. These are not problems which affect fully standard-compliant code, but code

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4284-513: The C and C++ toolchains for them, have supported 64-bit processors for many years. Many applications and libraries for those platforms are open-source software , written in C and C++, so that if they are 64-bit-safe, they can be compiled into 64-bit versions. This source-based distribution model, with an emphasis on frequent releases, makes availability of application software for those operating systems less of an issue. In 32-bit programs, pointers and data types such as integers generally have

4386-460: The Cray-1 , used registers up to 64 bits wide, and supported 64-bit integer arithmetic, although they did not support 64-bit addressing. In the mid-1980s, Intel i860 development began culminating in a 1989 release; the i860 had 32-bit integer registers and 32-bit addressing, so it was not a fully 64-bit processor, although its graphics unit supported 64-bit integer arithmetic. However, 32 bits remained

4488-561: The EU Court of Justice , based in Europe, would also find that Google held an illegal monopoly, in this case with regards to its shopping search, and could not avoid paying a €2.4 billion fine. The EU Court of Justice found that Google's treatment of rival shopping searches, which the court referred to as "discriminatory", was in violation of the Digital Markets Act . In October 2024, Google

4590-458: The GCC compiler, with GCC 8 supporting automatic vectorization and GCC 10 supporting C intrinsics. As of July 2020, LLVM and clang support C and IR intrinsics. ARM's own fork of LLVM supports auto-vectorization. In October 2016, ARMv8.3-A was announced. Its enhancements fell into six categories: ARMv8.3-A architecture is now supported by (at least) the GCC 7 compiler. In November 2017, ARMv8.4-A

4692-615: The Google Self-Driving Car Project ), smart cities ( Sidewalk Labs ), and transformer models ( Google DeepMind ). Google Search and YouTube are the two most-visited websites worldwide followed by Facebook and X (formerly known as Twitter). Google is also the largest search engine , mapping and navigation application , email provider , office suite , online video platform , photo and cloud storage provider, mobile operating system , web browser , machine learning framework, and AI virtual assistant provider in

4794-936: The Nintendo 64 and the PlayStation 2 had 64-bit microprocessors before their introduction in personal computers. High-end printers, network equipment, and industrial computers also used 64-bit microprocessors, such as the Quantum Effect Devices R5000 . 64-bit computing started to trickle down to the personal computer desktop from 2003 onward, when some models in Apple 's Macintosh lines switched to PowerPC 970 processors (termed G5 by Apple), and Advanced Micro Devices (AMD) released its first 64-bit x86-64 processor. Physical memory eventually caught up with 32 bit limits. In 2023, laptop computers were commonly equipped with 16GB and servers up to 64 GB of memory, greatly exceeding

4896-410: The exposé , "How Google Protected Andy Rubin , the 'Father of Android'". The company subsequently announced that "48 employees have been fired over the last two years" for sexual misconduct. On November 1, 2018, more than 20,000 Google employees and contractors staged a global walk-out to protest the company's handling of sexual harassment complaints. CEO Sundar Pichai was reported to be in support of

4998-483: The integer representation used. With the two most common representations, the range is 0 through 18,446,744,073,709,551,615 (equal to 2 − 1) for representation as an ( unsigned ) binary number , and −9,223,372,036,854,775,808 (−2 ) through 9,223,372,036,854,775,807 (2 − 1) for representation as two's complement . Hence, a processor with 64-bit memory addresses can directly access 2 bytes (16 exabytes or EB) of byte-addressable memory. With no further qualification,

5100-521: The 32-bit instruction set, so that processors that support the 64-bit instruction set can also run code for the 32-bit instruction set, or through software emulation , or by the actual implementation of a 32-bit processor core within the 64-bit processor, as with some Itanium processors from Intel, which included an IA-32 processor core to run 32-bit x86 applications. The operating systems for those 64-bit architectures generally support both 32-bit and 64-bit applications. One significant exception to this

5202-833: The 32-bit limit of 4 GB ( 4 × 1024 bytes ), allowing room for later expansion and incurring no overhead of translating full 64-bit addresses. The Power ISA v3.0 allows 64 bits for an effective address, mapped to a segmented address with between 65 and 78 bits allowed, for virtual memory, and, for any given processor, up to 60 bits for physical memory. The Oracle SPARC Architecture 2015 allows 64 bits for virtual memory and, for any given processor, between 40 and 56 bits for physical memory. The ARM AArch64 Virtual Memory System Architecture allows 48 bits for virtual memory and, for any given processor, from 32 to 48 bits for physical memory. The DEC Alpha specification requires minimum of 43 bits of virtual memory address space (8 TB) to be supported, and hardware need to check and trap if

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5304-655: The 4 GB address capacity of 32 bits. In principle, a 64-bit microprocessor can address 16 EB ( 16 × 1024 = 2 = 18,446,744,073,709,551,616 bytes ) of memory. However, not all instruction sets, and not all processors implementing those instruction sets, support a full 64-bit virtual or physical address space. The x86-64 architecture (as of 2016 ) allows 48 bits for virtual memory and, for any given processor, up to 52 bits for physical memory. These limits allow memory sizes of 256  TB ( 256 × 1024 bytes ) and 4  PB ( 4 × 1024 bytes ), respectively. A PC cannot currently contain 4  petabytes of memory (due to

5406-590: The AI race, Google's senior management issued a "code red" and a "directive that all of its most important products—those with more than a billion users—must incorporate generative AI within months". In early May 2023, Google announced its plans to build two additional data centers in Ohio. These centers, which will be built in Columbus and Lancaster, will power up the company's tools, including AI technology. The said data hub will add to

5508-598: The ARM Cortex-A32 supports only AArch32, the ARM Cortex-A34 supports only AArch64, and the ARM Cortex-A72 supports both AArch64 and AArch32. An ARMv9-A processor must support AArch64 at all Exception levels, and may support AArch32 at EL0. In December 2014, ARMv8.1-A, an update with "incremental benefits over v8.0", was announced. The enhancements fell into two categories: changes to the instruction set, and changes to

5610-478: The Armv8-R profile, is designed to address the needs of real-time applications, where predictable and deterministic behavior is essential. This profile focuses on delivering high performance, reliability, and efficiency in embedded systems where real-time constraints are critical. With the introduction of optional AArch64 support in the Armv8-R profile, the real-time capabilities have been further enhanced. The Cortex-R82

5712-408: The Google content network, through a cost-per-click scheme. The sister service, Google AdSense, allows website owners to display these advertisements on their website and earn money every time ads are clicked. One of the criticisms of this program is the possibility of click fraud , which occurs when a person or automated script clicks on advertisements without being interested in the product, causing

5814-521: The advertiser to pay money to Google unduly. Industry reports in 2006 claimed that approximately 14 to 20 percent of clicks were fraudulent or invalid. Google Search Console (rebranded from Google Webmaster Tools in May 2015) allows webmasters to check the sitemap, crawl rate, and for security issues of their websites, as well as optimize their website's visibility. Google had previously used virtual assistants and chatbots , such as Google Bard, prior to

5916-460: The already operational center near Columbus, bringing Google's total investment in Ohio to over $ 2 billion. In August 2024, Google would lose a lawsuit which started in 2020 in lower court, as it was found that the company had an illegal monopoly over Internet search. D.C. Circuit Court Judge Amit Mehta held that this monopoly was in violation of Section 2 of the Sherman Act . In September 2024,

6018-497: The code to implement Page's ideas. Page and Brin would also use their friend Susan Wojcicki 's garage as their office when the search engine was set up in 1998. Page and Brin originally nicknamed the new search engine "BackRub", because the system checked backlinks to estimate the importance of a site. Hassan as well as Alan Steremberg were cited by Page and Brin as being critical to the development of Google. Rajeev Motwani and Terry Winograd later co-authored with Page and Brin

6120-466: The company Willow Garage in 2006. While conventional search engines ranked results by counting how many times the search terms appeared on the page, they theorized about a better system that analyzed the relationships among websites. They called this algorithm PageRank ; it determined a website's relevance by the number of pages, and the importance of those pages that linked back to the original site. Page told his ideas to Hassan, who began writing

6222-455: The company was purchased for $ 400 million, yet the source of the information was not disclosed. A Google spokesperson declined to comment on the price. The purchase of DeepMind aids in Google's recent growth in the artificial intelligence and robotics community. In 2015, DeepMind's AlphaGo became the first computer program to defeat a top human pro at the game of Go. According to Interbrand's annual Best Global Brands report, Google has been

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6324-530: The deal. The sale of $ 1.67 billion gave Google a market capitalization of more than $ 23 billion. On November 13, 2006, Google acquired YouTube for $ 1.65 billion in Google stock, On July 20, 2007, Google bids $ 4.6 billion for the wireless-spectrum auction by the FCC. On March 11, 2008, Google acquired DoubleClick for $ 3.1 billion, transferring to Google valuable relationships that DoubleClick had with Web publishers and advertising agencies. By 2011, Google

6426-419: The development of micro-optics, monolithic integration, and system integration. In December 2022, Google debuted OSV-Scanner, a Go tool for finding security holes in open source software , which pulls from the largest open source vulnerability database of its kind to defend against supply chain attacks. In early 2023, following the success of ChatGPT and concerns that Google was falling behind in

6528-638: The exception model and memory translation. Instruction set enhancements included the following: Enhancements for the exception model and memory translation system included the following: In January 2016, ARMv8.2-A was announced. Its enhancements fell into four categories: The Scalable Vector Extension (SVE) is "an optional extension to the ARMv8.2-A architecture and newer" developed specifically for vectorization of high-performance computing scientific workloads. The specification allows for variable vector lengths to be implemented from 128 to 2048 bits. The extension

6630-460: The existing 32-bit ARMv7-A architecture. ARMv8-A allows 32-bit applications to be executed in a 64-bit OS, and a 32-bit OS to be under the control of a 64-bit hypervisor . ARM announced their Cortex-A53 and Cortex-A57 cores on 30 October 2012. Apple was the first to release an ARMv8-A compatible core ( Cyclone ) in a consumer product ( iPhone 5S ). AppliedMicro , using an FPGA , was the first to demo ARMv8-A. The first ARMv8-A SoC from Samsung

6732-448: The first paper about the project, describing PageRank and the initial prototype of the Google search engine, published in 1998. Héctor García-Molina and Jeffrey Ullman were also cited as contributors to the project. PageRank was influenced by a similar page-ranking and site-scoring algorithm earlier used for RankDex , developed by Robin Li in 1996, with Larry Page's PageRank patent including

6834-471: The grounds the company had abused a monopoly position in the search and search advertising markets. In December 2019, former PayPal chief operating officer Bill Ready became Google's new commerce chief. Ready's role will not be directly involved with Google Pay . In April 2020, due to the COVID-19 pandemic , Google announced several cost-cutting measures. Such measures included slowing down hiring for

6936-727: The information they desire through the use of keywords and operators . According to comScore market research from November 2009, Google Search is the dominant search engine in the United States market, with a market share of 65.6%. In May 2017, Google enabled a new "Personal" tab in Google Search, letting users search for content in their Google accounts' various services, including email messages from Gmail and photos from Google Photos. Google launched its Google News service in 2002, an automated service which summarizes news articles from various websites. Google also hosts Google Books ,

7038-481: The launch of a new company, called Calico , on September 19, 2013, to be led by Apple Inc. chairman Arthur Levinson . In the official public statement, Page explained that the "health and well-being" company would focus on "the challenge of ageing and associated diseases". On January 26, 2014, Google announced it had agreed to acquire DeepMind Technologies , a privately held artificial intelligence company from London . Technology news website Recode reported that

7140-539: The mid-1990s, HAL Computer Systems , Sun Microsystems , IBM , Silicon Graphics , and Hewlett-Packard had developed 64-bit architectures for their workstation and server systems. A notable exception to this trend were mainframes from IBM, which then used 32-bit data and 31-bit address sizes; the IBM mainframes did not include 64-bit processors until 2000. During the 1990s, several low-cost 64-bit microprocessors were used in consumer electronics and embedded applications. Notably,

7242-560: The most popular websites at the time, replacing Inktomi . In 2003, after outgrowing two other locations, the company leased an office complex from Silicon Graphics , at 1600 Amphitheatre Parkway in Mountain View, California . The complex became known as the Googleplex , a play on the word googolplex , the number one followed by a googol of zeroes. Three years later, Google bought the property from SGI for $ 319 million. By that time,

7344-684: The name "Google" had found its way into everyday language, causing the verb " google " to be added to the Merriam-Webster Collegiate Dictionary and the Oxford English Dictionary , denoted as: "to use the Google search engine to obtain information on the Internet". The first use of the verb on television appeared in an October 2002 episode of Buffy the Vampire Slayer . Additionally, in 2001 Google's investors felt

7446-538: The need to have a strong internal management, and they agreed to hire Eric Schmidt as the chairman and CEO of Google. Eric was proposed by John Doerr from Kleiner Perkins. He had been trying to find a CEO that Sergey and Larry would accept for several months, but they rejected several candidates because they wanted to retain control over the company. Michael Moritz from Sequoia Capital at one point even menaced requesting Google to immediately pay back Sequoia's $ 12.5m investment if they did not fulfill their promise to hire

7548-429: The new policy, Google may remove information from only certain but not all search queries. It would not remove content that is "broadly useful", such as news articles, or already part of the public record. In May 2022, Google announced that the company had acquired California based, MicroLED display technology development and manufacturing Start-up Raxium. Raxium is set to join Google's Devices and Services team to aid in

7650-409: The norm until the early 1990s, when the continual reductions in the cost of memory led to installations with amounts of RAM approaching 4 GB, and the use of virtual memory spaces exceeding the 4 GB ceiling became desirable for handling certain types of problems. In response, MIPS and DEC developed 64-bit microprocessor architectures, initially for high-end workstation and server machines. By

7752-763: The older 32/48-bit IMPI to the newer 64-bit PowerPC-AS , codenamed Amazon . The IMPI instruction set was quite different from even 32-bit PowerPC, so this transition was even bigger than moving a given instruction set from 32 to 64 bits. On 64-bit hardware with x86-64 architecture (AMD64), most 32-bit operating systems and applications can run with no compatibility issues. While the larger address space of 64-bit architectures makes working with large data sets in applications such as digital video , scientific computing, and large databases easier, there has been considerable debate on whether they or their 32-bit compatibility modes will be faster than comparably priced 32-bit systems for other tasks. A compiled Java program can run on

7854-428: The other types of registers cannot. The size of these registers therefore normally limits the amount of directly addressable memory, even if there are registers, such as floating-point registers, that are wider. Most high performance 32-bit and 64-bit processors (some notable exceptions are older or embedded ARM architecture (ARM) and 32-bit MIPS architecture (MIPS) CPUs) have integrated floating point hardware, which

7956-420: The physical size of the memory chips), but AMD envisioned large servers, shared memory clusters, and other uses of physical address space that might approach this in the foreseeable future. Thus the 52-bit physical address provides ample room for expansion while not incurring the cost of implementing full 64-bit physical addresses. Similarly, the 48-bit virtual address space was designed to provide 65,536 (2 ) times

8058-513: The protests. Later in 2019, some workers accused the company of retaliating against internal activists. On March 19, 2019, Google announced that it would enter the video game market, launching a cloud gaming platform called Google Stadia . On June 3, 2019, the United States Department of Justice reported that it would investigate Google for antitrust violations. This led to the filing of an antitrust lawsuit in October 2020, on

8160-599: The region's specific needs and training local talent. The partnership between Google and Saudi Arabia includes collaboration with key stakeholders, such as the Public Investment Fund (PIF), to develop AI applications that will benefit sectors like healthcare, finance, oil and gas, and logistics. The initiative focuses on creating localized AI technologies, with an emphasis on integrating Arabic language capabilities and enabling widespread cloud adoption. Google indexes billions of web pages to allow users to search for

8262-680: The remainder of 2020, except for a small number of strategic areas, recalibrating the focus and pace of investments in areas like data centers and machines, and non-business essential marketing and travel. Most employees were also working from home due to the COVID-19 pandemic and the success of it even led to Google announcing that they would be permanently converting some of their jobs to work from home The 2020 Google services outages disrupted Google services: one in August that affected Google Drive among others, another in November affecting YouTube , and

8364-416: The remaining 16 bits of the virtual address required to be all zeros (000...) or all ones (111...), and several 64-bit instruction sets support fewer than 64 bits of physical memory address. The term 64-bit also describes a generation of computers in which 64-bit processors are the norm. 64 bits is a word size that defines certain classes of computer architecture, buses, memory, and CPUs and, by extension,

8466-547: The remaining unsupported bits are zero (to support compatibility on future processors). Alpha 21064 supported 43 bits of virtual memory address space (8 TB) and 34 bits of physical memory address space (16 GB). Alpha 21164 supported 43 bits of virtual memory address space (8 TB) and 40 bits of physical memory address space (1 TB). Alpha 21264 supported user-configurable 43 or 48 bits of virtual memory address space (8 TB or 256 TB) and 44 bits of physical memory address space (16 TB). A change from

8568-638: The same architecture of 32 bits can execute code written for the 32-bit versions natively, with no performance penalty. This kind of support is commonly called bi-arch support or more generally multi-arch support . Google Google LLC ( / ˈ ɡ uː ɡ əl / GOO -gəl ) is an American-based multinational corporation and technology company focusing on online advertising , search engine technology, cloud computing , computer software , quantum computing , e-commerce , consumer electronics , and artificial intelligence (AI). It has been referred to as "the most powerful company in

8670-486: The same length. This is not necessarily true on 64-bit machines. Mixing data types in programming languages such as C and its descendants such as C++ and Objective-C may thus work on 32-bit implementations but not on 64-bit implementations. In many programming environments for C and C-derived languages on 64-bit machines, int variables are still 32 bits wide, but long integers and pointers are 64 bits wide. These are described as having an LP64 data model , which

8772-461: The search context and the user history. In 2007, Google launched " AdSense for Mobile ", taking advantage of the emerging mobile advertising market. Google Analytics allows website owners to track where and how people use their website, for example by examining click rates for all the links on a page. Google advertisements can be placed on third-party websites in a two-part program. Google Ads allows advertisers to display their advertisements in

8874-565: The second most valuable brand in the world (behind Apple Inc.) in 2013, 2014, 2015, and 2016, with a valuation of $ 133 billion. On August 10, 2015, Google announced plans to reorganize its various interests as a conglomerate named Alphabet Inc. Google became Alphabet's largest subsidiary and the umbrella company for Alphabet's Internet interests. Upon completion of the restructuring, Sundar Pichai became CEO of Google, replacing Larry Page, who became CEO of Alphabet. On August 8, 2017, Google fired employee James Damore after he distributed

8976-448: The size of data structures containing pointers, at the cost of a much smaller address space, a good choice for some embedded systems. For instruction sets such as x86 and ARM in which the 64-bit version of the instruction set has more registers than does the 32-bit version, it provides access to the additional registers without the space penalty. It is common in 64-bit RISC machines, explored in x86 as x32 ABI , and has recently been used in

9078-556: The software that runs on them. 64-bit CPUs have been used in supercomputers since the 1970s ( Cray-1 , 1975) and in reduced instruction set computers (RISC) based workstations and servers since the early 1990s. In 2003, 64-bit CPUs were introduced to the mainstream PC market in the form of x86-64 processors and the PowerPC G5 . A 64-bit register can hold any of 2 (over 18 quintillion or 1.8×10 ) different values. The range of integer values that can be stored in 64 bits depends on

9180-535: The world as measured by market share. On the list of most valuable brands, Google is ranked second by Forbes and fourth by Interbrand. It has received significant criticism involving issues such as privacy concerns , tax avoidance , censorship , search neutrality , antitrust and abuse of its monopoly position. On August 5, 2024, D.C. Circuit Court Judge Amit P. Mehta ruled that Google held an illegal monopoly over Internet search. Google began in January 1996 as

9282-753: The world" and is one of the world's most valuable brands due to its market dominance , data collection , and technological advantages in the field of AI. Google's parent company, Alphabet Inc. , is one of the five Big Tech companies, alongside Amazon , Apple , Meta , and Microsoft . Google was founded on September 4, 1998, by American computer scientists Larry Page and Sergey Brin while they were PhD students at Stanford University in California . Together, they own about 14% of its publicly listed shares and control 56% of its stockholder voting power through super-voting stock . The company went public via an initial public offering (IPO) in 2004. In 2015, Google

9384-538: Was Shriram who told Bezos about Google. Bezos asked Shriram to meet Google's founders and they met six months after Shriram had made his investment when Bezos and his wife were on a vacation trip to the Bay Area. Google's initial funding round had already formally closed but Bezos' status as CEO of Amazon was enough to persuade Page and Brin to extend the round and accept his investment. Between these initial investors, friends, and family Google raised around $ 1,000,000, which

9486-649: Was announced. Its enhancements fell into these categories: In September 2018, ARMv8.5-A was announced. Its enhancements fell into these categories: On 2 August 2019, Google announced Android would adopt Memory Tagging Extension (MTE). In March 2021, ARMv9-A was announced. ARMv9-A's baseline is all the features from ARMv8.5. ARMv9-A also adds: In September 2019, ARMv8.6-A was announced. Its enhancements fell into these categories: For example, fine-grained traps, Wait-for-Event (WFE) instructions, EnhancedPAC2 and FPAC. The bfloat16 extensions for SVE and Neon are mainly for deep learning use. In September 2020, ARMv8.7-A

9588-442: Was announced. Its enhancements fell into these categories: In September 2021, ARMv8.8-A and ARMv9.3-A were announced. Their enhancements fell into these categories: LLVM 15 supports ARMv8.8-A and ARMv9.3-A. In September 2022, ARMv8.9-A and ARMv9.4-A were announced, including: In October 2023, ARMv9.5-A was announced, including: In October 2024, ARMv9.6-A was announced, including: The ARM-R architecture, specifically

9690-558: Was fined by Russia with 2.5 decillion dollars for allegedly blocking pro-Kremlin propaganda. In November 2024, Google announced the establishment of a new artificial intelligence (AI) hub in Saudi Arabia, aiming to support the Kingdom's economic growth and technological development as part of its Vision 2030 initiative. This AI hub is projected to contribute up to $ 71 billion to Saudi Arabia's economy by advancing AI-driven solutions tailored to

9792-422: Was fired on the same day. Between 2018 and 2019, tensions between the company's leadership and its workers escalated as staff protested company decisions on internal sexual harassment, Dragonfly , a censored Chinese search engine, and Project Maven , a military drone artificial intelligence, which had been seen as areas of revenue growth for the company. On October 25, 2018, The New York Times published

9894-409: Was from clicks (cost per clicks), amounting to US$ 109,652 million in 2017. This includes three principal methods, namely AdMob , AdSense (such as AdSense for Content, AdSense for Search, etc.) and DoubleClick AdExchange. In addition to its own algorithms for understanding search requests, Google uses technology from its acquisition of DoubleClick , to project user interest and target advertising to

9996-489: Was handling approximately 3 billion searches per day. To handle this workload, Google built 11 data centers around the world with several thousand servers in each. These data centers allowed Google to handle the ever-changing workload more efficiently. In May 2011, the number of monthly unique visitors to Google surpassed one billion for the first time. In May 2012, Google acquired Motorola Mobility for $ 12.5 billion, in its largest acquisition to date. This purchase

10098-535: Was initially funded by an August 1998 investment of $ 100,000 from Andy Bechtolsheim , co-founder of Sun Microsystems . This initial investment served as a motivation to incorporate the company to be able to use the funds. Page and Brin initially approached David Cheriton for advice because he had a nearby office in Stanford, and they knew he had startup experience, having recently sold the company he co-founded, Granite Systems, to Cisco for $ 220 million. David arranged

10200-624: Was made in part to help Google gain Motorola's considerable patent portfolio on mobile phones and wireless technologies, to help protect Google in its ongoing patent disputes with other companies, mainly Apple and Microsoft , and to allow it to continue to freely offer Android. In June 2013, Google acquired Waze for $ 966 million. While Waze would remain an independent entity, its social features, such as its crowdsourced location platform, were reportedly valuable integrations between Waze and Google Maps , Google's own mapping service. Google announced

10302-456: Was reorganized as a wholly owned subsidiary of Alphabet Inc. Google is Alphabet's largest subsidiary and is a holding company for Alphabet's internet properties and interests. Sundar Pichai was appointed CEO of Google on October 24, 2015, replacing Larry Page, who became the CEO of Alphabet. On December 3, 2019, Pichai also became the CEO of Alphabet. The company has since rapidly grown to offer

10404-416: Was so far beyond the typical amounts (4 MiB) in installations, that this was considered to be enough headroom for addressing. 4.29 billion addresses were considered an appropriate size to work with for another important reason: 4.29 billion integers are enough to assign unique references to most entities in applications like databases . Some supercomputer architectures of the 1970s and 1980s, such as

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