Engineering:Mac transition to Apple silicon

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Short description: Transition of the Apple Macintosh platform from Intel x86 to ARM processors
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The Mac transition to Apple silicon is the process of changing the central processing units (CPUs) of Apple Inc.'s line of Mac computers from Intel's x86-64 processors to Apple-designed systems on a chip that use the ARM64 architecture. CEO Tim Cook announced a "two-year transition plan" in his WWDC keynote address on June 22, 2020,[1] and the first Macs with Apple-designed systems on a chip were released that November.[2]

This is the third time Apple has switched the Macintosh to a new instruction set architecture. The first was from the Motorola 68000 series to PowerPC chips in 1994[3] and the second from PowerPC to Intel processors using the x86 architecture in 2005–2006.[4]

Background

A first-generation MacBook Pro from 2006, one of the first line of Mac computers to feature an Intel processor instead of a PowerPC processor

The Macintosh was initially based on the Motorola 68000 architecture, switching, after evaluating several possibilities, to the PowerPC family Apple co-developed with IBM and Motorola, in the early 1990s. With its second architecture switch, starting in 2005, to Intel 32-bit and 64-bit x86, with Mac OS X Lion dropping support for Macs with 32-bit processors in 2011, and macOS Catalina dropping support for 32-bit Intel apps in 2019. Supported 64-bit Intel systems can still boot the latest versions of macOS.

Apple's ATG had spotted Acorn's ARM architecture, in 1985, and considered it as a possible replacement for either the MOS 6502 of the Apple II range, the 68000 of the original Macintosh, or use in a tablet device, under Paul Gavarini and Tom Pittard, in a project labelled Möbius.[5] A partnership was established with Acorn Computers, and VLSI in 1990, and the later option taken up, with an ARM SoC appearing in the 1993 Newton personal digital assistant, followed by the iPod in 2001 and the iPhone in 2007. Apple has designed its own custom ARM chips since 2009, which it has officially deployed since 2010 in its iPhone, iPad, iPod, Apple TV and Apple Watch product lines, as well as AirPods, Beats and HomePod.[6] Between October 2016 and August 2020, Intel-based Macs with Apple-designed ARM co-processors were released.

In the 2010s, media reports documented Apple's frustrations and challenges with the pace and quality of Intel's technology development.[7] Apple reportedly had trouble with Intel modems for iPhones in 2017 due to technical issues and missed deadlines.[8] Meanwhile, a 2018 report suggested that Intel chip issues prompted a redesign of the MacBook.[9] In 2019, Apple blamed Intel processor shortages for a decline in Mac sales.[10] In June 2020, former Intel principal engineer François Piednoël said Intel's "abnormally bad" quality assurance in its Skylake processors, making Apple "the number one filer of problems in the architecture", helped Apple decide to migrate. Intel CTO Mike Mayberry countered that quality assurance problems may arise at large scale from any CPU vendor.[11]

History

Early involvement with ARM

In 1983, Acorn Computers started working on a project to design its own CPU architecture and instructions set, called the Acorn RISC Machine (ARM).[12] In 1985, Apple's Advanced Technology Group worked with Acorn to create an experimental prototype, code-named Mobius, to replace the Apple II, using a modified ARM processor. The project was cancelled but Apple again partnered with Acorn when it needed a low-power, efficient processor for its future Newton PDA.[13][14][15] In 1990, a new joint-venture was created between Acorn, Apple and VLSI Technology with the goal of pursuing the development of the ARM processor. The company was named Advanced RISC Machines Ltd, becoming the new meaning of the ARM acronym.[16] One of the first designs of the new company would be the ARM610 SoC, initially for Apple, that allowed the Endianness to be swapped, increased the address space from 26 bit (64 MB) to 32 bit (4 GB), and modified the memory management unit.[17] Apple held a 43% stake in the company, which was reduced to 14.8% in 1999.[18]

Transition from PowerPC to Intel

Since Apple's 2005–2006 transition to Intel processors, all Macintosh computers, until the transition to Apple silicon, have used Intel's x86 CPU architecture. During his 2005 WWDC keynote address, Steve Jobs noted that Intel-based processors outperformed IBM's PowerPC processors in terms of energy consumption, and that if Apple continued to rely on PowerPC technology, it would be unable to build the future Macs it envisioned, including higher-performance workstation computers and advanced laptops for a rapidly growing laptop market: "As we look ahead, we can envision some amazing products we want to build ... And we don't know how to build them with the future PowerPC roadmap."[19][20]

By June 2006, only Apple's high-end desktop computer and server product were still using PowerPC processors.[21] The hardware transition was completed when Intel-based Mac Pros and Xserve computers were announced in August 2006 and shipped by the end of the year.[22][23]

Apple ceased support for booting on PowerPC as of Mac OS X 10.6 "Snow Leopard"[24] in August 2009,[25] three years after the transition was complete. Support for PowerPC applications via Rosetta was dropped from macOS in 10.7 "Lion"[26] in July 2011, five years after the transition was complete.[27]

Processor development

Main page: Engineering:Apple silicon
An illustration of the Apple A12Z processor

In 2008, Apple bought processor company P.A. Semi for US$278 million.[28][29] At the time, it was reported that Apple bought P.A. Semi for its intellectual property and engineering talent.[30] CEO Steve Jobs later claimed that P.A. Semi would develop system-on-chips for Apple's iPods and iPhones.[6] Following the acquisition, Apple signed a rare "Architecture license" with ARM, allowing the company to design its own core, using the ARM instruction set.[31] The first Apple-designed chip was the A4, released in 2010, which debuted in the first-generation iPad, then in the iPhone 4. Apple subsequently released a number of products with its own processors.

Rumors of Apple shifting Macintosh to custom-designed ARM processors began circulating in 2011, when SemiAccurate predicted it would happen by mid-2013.[32] In 2014, MacRumors reported that Apple was testing an ARM-based Mac prototype with a large Magic Trackpad.[33] In 2018, Bloomberg reported that Apple was planning to use its own chips based on the ARM architecture beginning in 2020.[34]

The Apple A12X Bionic processor used in the iPad Pro (3rd generation) reportedly roughly matches the performance of Intel's Core i7 processor used in the MacBook Pro at the time.[35]

In the months and weeks leading up to Apple's 2020 WWDC, multiple media reports anticipated an official announcement of the transition during the event.[36][37]

Transition process

2020

Apple announced its plans to shift the Macintosh platform to Apple silicon in a series of WWDC presentations in June 2020.[38] The entire transition of the Macintosh product line is expected to take "about two years", with the first ARM-based Macs released by the end of 2020.[39][1] Similar language was used during Apple's 2005–2006 transition to Intel, which actually took about one year.[35]

All Apple apps included with macOS Big Sur are compatible with x86-64 and ARM architectures. Many third-party apps are similarly being made dual-platform, including prominent software packages such as Adobe Photoshop and Microsoft Word.[39]

To enable x86-native software to run on new ARM-based Macs, Rosetta 2 dynamic binary translation software is transparently embedded in macOS Big Sur.[35][1] Universal binary 2 enables application developers to support both x86-64 and ARM64.[40][1]

To allow developers to prepare their software for a smooth user experience on ARM-based Macs, they were given the option to sign up for a one year membership to the Universal App Quick Start Program which provided a couple of benefits. One of which was a license to use a Developer Transition Kit (DTK), temporarily made available by Apple.[41][42] This Developer Transition Kit uses the A12Z chip, originally used in the iPad Pro (4th generation), housed inside a Mac Mini case.[1][35] In an interview shortly after the announcement of the transition, Apple senior vice president of Software Engineering Craig Federighi praised the performance of the DTK Apple's prototype ARM-based Mac.[43][44]

In November 2020, Apple announced the Apple M1, its first ARM-based system on a chip to be used in Macs, alongside updated models of the Mac Mini, MacBook Air and 13-inch MacBook Pro based on it.[2]

2021

In April 2021, Apple released a redesigned 24-inch iMac based on the M1 to replace the 21.5-inch Intel model.[45]

In October 2021, Apple announced the M1 Pro and M1 Max, and updated 14-inch and 16-inch MacBook Pro models based on them. The M1 Pro and M1 Max use integrated Apple-designed GPUs, replacing the integrated and discrete GPUs supplied by Intel and AMD, and lack support for external GPUs.[46] Apple discontinued all of their Intel-based laptops following the announcement.[47]

2022

In March 2022, Apple announced the Mac Studio, a new high-end desktop model that uses the M1 Ultra, a dual-SoC configuration of two M1 Max chips.[48][49] Apple concurrently discontinued the 27-inch Intel-based iMac, making the Mac Pro and Core i5/i7 Mac Mini the last remaining Intel-based Macs.[50]

Impact

In June 2020, tech analyst Daniel Newman estimated that Apple accounted for $1.5 billion to $3.0 billion (about 2% to 4%) of Intel's annual revenue,[51] and only 6.9% to 12% of the PC market in the United States of America [52][53] and 7% globally.[54] Some speculated that Apple's move away from Intel chips could prompt other customers to do the same.[52][53] CNET speculated that the transition might reduce Apple's component costs.[3]

Users and developers

Apps created for the iOS platform can run natively on ARM-powered Macs.[55]

The transition could restrict or even eliminate hobbyist "Hackintosh" computers, which use commodity PC hardware to run macOS, in violation of license restrictions.[56][57]

The Boot Camp software, which enables Intel-based Macs to natively run Microsoft Windows in an Apple-supported dual booting environment, will not be implemented on Apple silicon-based Macs. (As of June 2020), Apple said it has "no plans to direct boot into Windows" on ARM-based Macintosh computers. Apple's senior vice president of Software Engineering Craig Federighi suggested that virtualization technology is a viable alternative: "Purely virtualization is the route... Hypervisors can be very efficient, so the need to direct boot shouldn't really be the concern."[58][59] Microsoft had not commented on whether it would extend its ARM-based Windows license beyond OEM preinstallations.[58]

As of 2022, Parallels Desktop for Mac preloads an ARM64 version of Windows 11 onto Apple Silicon-based Macs, and can also run ARM64 Windows 10 and Linux.

Reception

Before Apple released M1 Macs, Wired expressed skepticism that Apple's designers could use smartphone-related processors to drive a Mac Pro. It also questioned Apple's vague commitment to allow Intel binaries to run on ARM-based Macs "for years to come" and wondered which upcoming version of macOS would cease to support Intel Macs.[60][1]

Lauren Giret remarked that Apple might "succeed where Microsoft has failed" due to Apple's "tight integration" of hardware and software, and a vast collection of applications that can already run on the new platform.[61]

When systems containing M1 processors were released, they received near-universal acclaim for their high speed and low-energy consumption.[62][63]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "Apple announces Mac transition to Apple silicon" (Press release). Apple. Apple. June 22, 2020. Archived from the original on June 23, 2020. Retrieved June 23, 2020.
  2. ↑ 2.0 2.1 Iyengar, Rishi. "Apple details new MacBook Air, MacBook Pro and Mac Mini -- all powered by in-house silicon chips". https://www.cnn.com/2020/11/10/tech/apple-silicon-chips-mac/index.html. 
  3. ↑ 3.0 3.1 Shankland, Stephen (June 22, 2020). "Apple gives Macs a brain transplant with new Arm chips starting this year". CNet. https://www.cnet.com/news/apple-gives-macs-a-brain-transplant-with-new-arm-chips/. 
  4. ↑ Honan, Mathew (June 5, 2005). "WWDC: Apple drops IBM PowerPC line for Intel chips". Macworld. https://www.macworld.com/article/1045159/powerpcintel.html. 
  5. ↑ Pittard, Tom. "CONSULTANT" (in en-US). https://tompittard.com/media. 
  6. ↑ 6.0 6.1 Krazit, Tom (September 18, 2009). "Report: Apple's Jobs: PA Semi to design iPhone chips". CNet. https://www.cnet.com/news/apples-jobs-pa-semi-to-design-iphone-chips/. 
  7. ↑ Hardwick, Tim (June 25, 2020). "Former Intel Engineer Claims Buggy Skylake Chips Hastened Apple's Switch to Custom Silicon". MacRumors. https://www.macrumors.com/2020/06/25/buggy-skylake-chips-hastened-apple-silicon/. 
  8. ↑ Potuck, Michael (May 15, 2019). "Report: Apple's custom 5G modems may not arrive until 2025 after 'long and painful divorce' with Intel". 9to5Mac. https://9to5mac.com/2019/05/15/apple-intel-divorce/. 
  9. ↑ Horwitz, Jeremy (August 17, 2018). "Apple reportedly redesigned basic MacBook after Intel chip issues". VentureBeat. https://venturebeat.com/2018/08/17/apple-reportedly-redesigned-basic-macbook-after-intel-chip-issues/. 
  10. ↑ Allan, Darren (May 3, 2019). "Apple blames Intel's processor shortage for slump in Mac sales". TechRadar. https://www.techradar.com/news/apple-blames-intels-processor-shortage-for-slump-in-mac-sales. 
  11. ↑ James, Dave (June 24, 2020). "Intel insider claims it finally lost Apple because Skylake QA 'was abnormally bad'". PC Gamer. https://www.pcgamer.com/intel-skylake-why-apple-left/. 
  12. ↑ Speed, Richard (27 April 2020). "Happy birthday, ARM1. It is 35 years since Britain's Acorn RISC Machine chip sipped power for the first time". The Register. https://www.theregister.com/2020/04/27/arm_35_year_anniversary/. 
  13. ↑ Dingee, Don; Nenni, Daniel (21 December 2015). Mobile Unleashed: The Origin and Evolution of ARM Processors in our Devices. 
  14. ↑ "Tom Pittard - Technologies". https://tompittard.com/technologies. 
  15. ↑ Sobel, Art. "The ARM Processor or The RISC for the Rest of Us". http://www.advanced-risc.com/art1stor.htm. 
  16. ↑ Weber, Jonathan (28 November 1990). "Apple to Join Acorn, VLSI in Chip-Making Venture". https://www.latimes.com/archives/la-xpm-1990-11-28-fi-4993-story.html. 
  17. ↑ Harker, Tony (2009). "ARM Gets Serious About IP". https://ieeexplore.ieee.org/ielx5/4563670/5191422/05191430.pdf?tp=&arnumber=5191430&isnumber=5191422&ref=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvLnVrLw==. 
  18. ↑ Gallagher, William (9 June 2020). "How ARM has already saved Apple - twice". https://appleinsider.com/articles/20/06/09/how-arm-has-already-saved-apple---twice. 
  19. ↑ McCracken, Harry (June 24, 2020). "Apple's 2005 and 2020 WWDC keynotes: Eerily similar—and worlds apart". Fast Company. https://www.fastcompany.com/90519918/apples-2005-and-2020-wwdc-keynotes-eerily-similar-and-worlds-apart. 
  20. ↑ ""Macintel" Q&A". EveryMac. January 16, 2006. https://everymac.com/mac-answers/macintel-faq/why-did-apple-switch-to-intel.html. 
  21. ↑ Dalrymple, Jim (June 28, 2006). "One year later: How Apple's Intel transition is going". Macworld. https://www.macworld.com/article/1051609/inteltransition.html. 
  22. ↑ "Apple Introduces Xserve with Quad 64-bit Xeon Processors". August 7, 2006. https://www.apple.com/newsroom/2006/08/07Apple-Introduces-Xserve-with-Quad-64-bit-Xeon-Processors/. 
  23. ↑ "Apple Unveils New Mac Pro Featuring Quad 64-bit Xeon Processors". August 7, 2006. https://www.apple.com/newsroom/2006/08/07Apple-Unveils-New-Mac-Pro-Featuring-Quad-64-bit-Xeon-Processors/. 
  24. ↑ "Mac OS X 10.6 Snow Leopard Installation and Setup Guide". 2009. https://manuals.info.apple.com/MANUALS/1000/MA1172/en_US/Snow_Leopard_Installation_Instructions.pdf. "To upgrade to Snow Leopard or install Snow Leopard for the first time, you must have a Mac with: An Intel processor" 
  25. ↑ "Apple to Ship Mac OS X Snow Leopard on August 28". August 24, 2009. https://www.apple.com/newsroom/2009/08/24Apple-to-Ship-Mac-OS-X-Snow-Leopard-on-August-28/. 
  26. ↑ "Inside Mac OS X 10.7 Lion: Missing Front Row, Rosetta and Java runtime". AppleInsider. https://appleinsider.com/articles/11/02/26/mac_os_x_lion_drops_front_row_java_runtime_rosetta.html. 
  27. ↑ "Mac OS X Lion Available Today From the Mac App Store". July 20, 2011. https://www.apple.com/newsroom/2011/07/20Mac-OS-X-Lion-Available-Today-From-the-Mac-App-Store/. 
  28. ↑ "Apple Buys Chip Designer". 23 April 2008. https://www.forbes.com/2008/04/23/apple-buys-pasemi-tech-ebiz-cz_eb_0422apple.html?sh=2debaee77257. 
  29. ↑ Krazit, Tom (September 18, 2009). "Apple acquires low-power chip designer PA Semi". CNet. https://www.cnet.com/news/apple-acquires-low-power-chip-designer-pa-semi/. 
  30. ↑ Krazit, Tom (September 18, 2009). "Report: Apple wants PA Semi's engineers, not its chips". CNet. https://www.cnet.com/news/report-apple-wants-pa-semis-engineers-not-its-chips/. 
  31. ↑ Gwennap, Linley (15 September 2012). "How Apple Designed Own CPU For A6". https://www.linleygroup.com/newsletters/newsletter_detail.php?num=4881. 
  32. ↑ Demerjian, Charlie (May 5, 2011). "Apple dumps Intel from laptop lines". Stone Arch Networking Services, Inc.. https://semiaccurate.com/2011/05/05/apple-dumps-intel-from-laptop-lines/. 
  33. ↑ "Apple Testing ARM Based Mac Prototypes with Large Magic Trackpad?" (in en). https://www.macrumors.com/2014/05/25/arm-mac-magic-trackpad/. 
  34. ↑ King, Ian; Gurman, Mark (April 2, 2018). "Apple Plans to Use Its Own Chips in Macs From 2020, Replacing Intel". Bloomberg News. https://www.bloomberg.com/news/articles/2018-04-02/apple-is-said-to-plan-move-from-intel-to-own-mac-chips-from-2020. 
  35. ↑ 35.0 35.1 35.2 35.3 Horwitz, Jeremy (June 22, 2020). "Apple confirms Mac transition to ARM CPUs, Rosetta 2 Intel emulation". VentureBeat. https://venturebeat.com/2020/06/22/apple-confirms-mac-transition-to-arm-cpus/. 
  36. ↑ Gurman, Mark; Wu, Debby; King, Ian (April 23, 2020). "Apple Aims to Sell Macs With Its Own Chips Starting in 2021". https://www.bloomberg.com/news/articles/2020-04-23/apple-aims-to-sell-macs-with-its-own-chips-starting-in-2021. 
  37. ↑ Haselton, Todd (June 22, 2020). "Apple will stop using Intel chips in all Macs by 2021, top analyst says". CNBC. https://www.cnbc.com/2020/06/22/new-macbook-pro-and-imac-coming-with-arm-chips-instead-of-intel---kuo.html. 
  38. ↑ Warren, Tom (June 22, 2020). "Apple announces it will switch to its own processors for future Macs". The Verge. https://www.theverge.com/2020/6/22/21295475/apple-mac-processors-arm-silicon-chips-wwdc-2020. 
  39. ↑ 39.0 39.1 Axon, Samuel; Amadeo, Ron (June 22, 2020). "This is Apple's roadmap for moving the first Macs away from Intel". ArsTechnica. https://arstechnica.com/gadgets/2020/06/this-is-apples-roadmap-for-moving-the-first-macs-away-from-intel/. 
  40. ↑ Axon, Samuel (June 22, 2020). "This is Apple's roadmap for moving the first Macs away from Intel" (in en-us). https://arstechnica.com/gadgets/2020/06/this-is-apples-roadmap-for-moving-the-first-macs-away-from-intel/. 
  41. ↑ "Universal App Quick Start Program". https://developer.apple.com/programs/universal/. 
  42. ↑ "Universal App Quick Start Program". 2020-06-22. https://developer.apple.com/terms/universal-app-quick-start-program/Developer-Universal-App-Quick-Start-Program.pdf. 
  43. ↑ Gruber, John (June 24, 2020). "The Talk Show Remote from WWDC 2020, With Craig Federighi and Greg Joswiak". Daring Fireball. http://www.daringfireball.net/2020/06/the_talk_show_wwdc_2020. 
  44. ↑ Long, Michael (June 25, 2020). "Just How Fast Is Apple Silicon?". The Startup. https://medium.com/swlh/just-how-fast-is-apple-silicon-a6d3e1804ba6. 
  45. ↑ Dignan, Larry. "Apple pushes M1 competitive advantage with iPad Pro and iMac updates" (in en). https://www.zdnet.com/article/apple-pushes-m1-competitive-advantage-with-ipad-pro-imac-updates/. 
  46. ↑ Warren, Tom (2021-10-26). "Apple’s MacBook Pro is a GPU-shaped warning to Nvidia and AMD" (in en). https://www.theverge.com/2021/10/26/22746371/macbook-pro-m1-max-apple-gpu-performance-nvidia-amd. 
  47. ↑ Villas-Boas, Antonio. "Apple stopped selling Intel-based laptops just moments after it announced the new MacBook Pros" (in en-US). https://www.businessinsider.com/apple-macbook-pro-discontinued. 
  48. ↑ Gartenberg, Chaim (2022-03-08). "Apple announces new flagship M1 Ultra desktop processor for its most powerful computers" (in en). https://www.theverge.com/2022/3/8/22958174/apple-silicon-m1-ultra-chip-soc-processor-cpu-gpu-update. 
  49. ↑ Chin, Monica (2022-03-08). "Apple’s Mac Studio is a new desktop for creative professionals" (in en). https://www.theverge.com/2022/3/8/22962081/apple-mac-studio-m1-max-ultra-price-specs-processor-release-date. 
  50. ↑ Song, Victoria (2022-03-08). "The 27-inch iMac has been discontinued" (in en). https://www.theverge.com/2022/3/8/22967616/apple-27-inch-imac-studio-desktop. 
  51. ↑ Newman, Daniel. "Opinion: If Intel lost Apple as a customer, it would be good news" (in en-US). https://www.marketwatch.com/story/in-this-case-losing-apple-as-a-customer-would-be-good-news-2020-06-15. 
  52. ↑ 52.0 52.1 Gurman, Mark (June 9, 2020). "In a first, Apple plans to shift to its own processors to power new Mac computers". Fortune. Bloomberg News. https://fortune.com/2020/06/09/in-a-first-apple-plans-to-shift-to-its-own-processors-to-power-new-mac-computers/. 
  53. ↑ 53.0 53.1 Gassée, Jean-Louis (June 21, 2020). "ARM Mac Impact On Intel". Monday Note. https://mondaynote.com/arm-mac-impact-on-intel-9641a8e73dca. 
  54. ↑ "Gartner Says Worldwide PC Shipments Grew 2.3% in 4Q19 and 0.6% for the Year". Gartner. January 13, 2020. https://www.gartner.com/en/newsroom/press-releases/2020-01-13-gartner-says-worldwide-pc-shipments-grew-2-point-3-percent-in-4q19-and-point-6-percent-for-the-year. 
  55. ↑ Lee, Nicole (June 22, 2020). "iOS apps will run natively on ARM-powered Macs". Engadget. https://www.engadget.com/ios-apps-arm-powered-macs-192046502.html. 
  56. ↑ Gewirtz, David (June 24, 2020). "Will Apple Silicon kill the Hackintosh? The odds against a self-built MacOS Arm computer". ZDNet. https://www.zdnet.com/article/will-apple-silicon-kill-the-hackintosh/. 
  57. ↑ Fagioli, Brian (June 22, 2020). "Macs will use ARM-based Apple processors instead of Intel — is Hackintosh dead?". BetaNews. https://betanews.com/2020/06/22/apple-macos-intel-arm/. 
  58. ↑ 58.0 58.1 Warren, Tom (June 24, 2020). "Apple's new ARM-based Macs won't support Windows through Boot Camp" (in en). https://www.theverge.com/2020/6/24/21302213/apple-silicon-mac-arm-windows-support-boot-camp. 
  59. ↑ Axon, Samuel (June 24, 2020). "Here's what's happening to Boot Camp amid the Apple silicon transition" (in en-us). https://arstechnica.com/gadgets/2020/06/heres-whats-happening-to-boot-camp-amid-the-apple-silicon-transition/. 
  60. ↑ Barrett, Brian (June 22, 2020). "Apple's Intel Breakup Will Reshape Macs—and Beyond". Wired. https://www.wired.com/story/apple-will-put-its-own-chips-into-macs/. 
  61. ↑ "Opinion: Apple seems poised to succeed where Microsoft failed with Windows 10 on ARM" (in en). June 23, 2020. https://www.onmsft.com/editorial/opinion-apple-seems-poised-to-succeed-where-microsoft-failed-with-windows-10-on-arm. 
  62. ↑ Spoonauer, Mark (January 11, 2022). "MacBook Pro with M1 review". https://www.tomsguide.com/uk/reviews/macbook-pro-m1. 
  63. ↑ Espósito, Filipe (November 10, 2021). "Comment: 1 year after the M1 chip, Apple has really changed the computer industry once again". https://9to5mac.com/2021/11/10/comment-1-year-after-the-m1-chip-apple-has-really-changed-the-computer-industry-once-again/. 




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