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Basic Input/Output

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October 2018

Alex Ionescu’s VisualUefi

Alex Ionescu’s VisualUefi
Alex Ionescu’s VisualUefi

Mr. Alex Ionescu created, and has been maintaining for several years now, a wonderful tool called VisualUefi .  A synopsis, from its home o...

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7:00 AM
William Leara
1
EDK, tools
7:00 AM

BSides Portland, Oct 26-27

BSides Portland, Oct 26-27
BSides Portland, Oct 26-27

I was immediately intrigued when I saw the newest BSides Portland event taking place at the end of this month in Portland, OR in the Oregon...

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7:00 AM
William Leara
0
conferences, security
7:00 AM
 
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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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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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      • Alex Ionescu’s VisualUefi
      • BSides Portland, Oct 26-27
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latest UEFI specs

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

UEFI resources

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UEFI blog roll

  • BIOS on StackOverflow
    Issue with Ubuntu Installation - No Bootable Device and BIOS Password Lock [closed]
  • Vincent Zimmer's blog
    April showers....

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