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GeezerVison is showing en.wikipedia.org — bridgeOS - Wikipedia

bridgeOS
A MacBook Pro Touch Bar powered by bridgeOS
DeveloperApple
Written in
  • C
  • C++
  • Objective-C
  • Swift
  • assembly language
OS family
Unix-like, iOS
Working stateCurrent
Source modelClosed, with open-source components
Initial releaseOctober 27, 2016 (2016-10-27)
Update methodFOTA (via Mac running macOS)
Supported platforms
  • T series (2016 MacBook Pro and later)
LicenseProprietary software except for open-source components
Support status
Supported

bridgeOS is an embedded operating system created and developed by Apple for use exclusively with its hardware. bridgeOS runs on the T series Apple silicon processors[1][2][3][4] and operates devices such as the OLED touchscreen strip called the "Touch Bar",[5] Touch ID fingerprint sensor, disk encryption, and cooling fans.[6]

At boot time, the bootloader executes the bridgeOS kernel, then the bridgeOS kernel passes off to the UEFI firmware.[7]

bridgeOS is based on Apple's watchOS.[8]

References

  1. ↑ "10.15.4 Supplemental Update Bricking Small Number of T2 Macs". Mr. Macintosh. April 17, 2020. Retrieved August 18, 2020.
  2. ↑ Davidov, Misha; Erickson, Jeremy (2019). "Inside The Apple T2" (PDF). blackhat.com.
  3. ↑ Misha Davidov (November 20, 2018). "Secure Boot in the Era of the T2". duo.com.
  4. ↑ Lianying Zhao; He Shuang; Shengjie Xu; Wei Huang; Rongzhen Cui; Pushkar Bettadpur; David Lie (2024). "A Survey of Hardware Improvements to Secure Program Execution" (PDF). ACM Computing Surveys. 56 (12): 1–37. doi:10.1145/3672392.
  5. ↑ Snell, Jason; Macworld | (July 8, 2020). "The switch to Apple silicon: Will the Touch Bar survive?". Macworld. Retrieved August 18, 2020.
  6. ↑ "TinkerTool System 7, Reference Manual" (PDF). Marcel Bresink Software-Systeme (MBS). August 22, 2023.
  7. ↑ Frazelle, Jessie (February 4, 2020). "Securing the Boot Process: The hardware root of trust". ACM Queue. 17 (6): –60:5–Pages 60:21. doi:10.1145/3380774.3382016. ISSN 1542-7730. Retrieved January 14, 2024.
  8. ↑ Pepijn Bruienne (May 2, 2018). "Apple iMac Pro and Secure Storage". duo.com.
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