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Basic Input/Output

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August 2017

RWEverything. Yes, Everything.

RWEverything. Yes, Everything.
RWEverything. Yes, Everything.

I’ve done many tools reviews in the history of this web site, so it would be unthinkable to neglect to talk about what may be the biggest a...

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7:00 AM
William Leara
0
tools
7:00 AM

ACPI 6.2, Courtesy of Nikolaj

ACPI 6.2, Courtesy of Nikolaj
ACPI 6.2, Courtesy of Nikolaj

This is the third and final installment in the “Courtesy of Nikolaj” series of posts.    Nikolaj Schlej recently took to Twitter to summari...

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7:00 AM
William Leara
0
specifications
7:00 AM

Windows Calculator. Windows Calculator???

Windows Calculator. Windows Calculator???
Windows Calculator. Windows Calculator???

This is a blog post about Windows Calculator.  No, seriously!  Why a blog post about Windows Calculator?  Well: it gives me a chance to do a...

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7:00 AM
William Leara
0
tools, Windows
7:00 AM
 
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welcome

Welcome to the Basic Input/Output website! Here I share things pertaining to the arcane art of PC BIOS development. For spice, I add material about software development in general and some interesting computer history vignettes. Please, try to contain your excitement!
—William Leara
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popular

  • UEFI Forum Updates All Specs, Dec 2024
    The UEFI Forum updated all three of its specifications in December, 2024:  ACPI, UEFI, and PI. As a refresher: Advanced Configuration and P...
  • Reverse Engineering UEFI with Ghidra
    Ghidra is a free and open-source tool for software reverse engineering.  It is extensible, and allows for application-specific capabilities...
  • JEDEC Manufacturer IDs Are a Mess
    The Vendor ID .  Seems like a pretty prosaic topic.  What's to say?  Every vendor has a numeric identifier that is globally unique so th...
  • EDID and DisplayID
    In " The Before Times" (think: 1980s), there was no way for graphics adapters and monitors to negotiate a common set of supported...
  • Guide to the SWEBOK v4.0 Has Been Released
    The Guide to the Software Engineering Body of Knowledge (SWEBOK) v4.0 was released on October 15, 2024. The Guide is a publication of the ...
  • The Keyboard Controller Interface, 0x60/0x64
    The original IBM PC (1981), and its immediate successor, the IBM PC/XT (1983), had keyboards limited to unidirectional communication:  data ...

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      • RWEverything. Yes, Everything.
      • ACPI 6.2, Courtesy of Nikolaj
      • Windows Calculator. Windows Calculator???
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latest UEFI specs

  • UEFI Spec 2.11
  • UEFI PI Spec 1.9
  • ACPI 6.5a

UEFI resources

  • presentations, podcasts, videos
  • white papers

UEFI blog roll

  • BIOS on StackOverflow
    How to build a Yocto Project image for a x86 that uses BIOS firmware [closed]
  • Vincent Zimmer's blog
    early career aspirations

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