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April 2015

Government Collecting Telephone Metadata…in 1985!

Government Collecting Telephone Metadata…in 1985!
Government Collecting Telephone Metadata…in 1985!

In this classic episode of The Computer Chronicles , Stewart is reading through the news and discusses a program whereby the U.S. General Se...

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6:00 AM
William Leara
0
Computer Chronicles
6:00 AM

You SHALL NOT Skip This REQUIRED Blog Post

You SHALL NOT Skip This REQUIRED Blog Post
You SHALL NOT Skip This REQUIRED Blog Post

Do you read specifications?  If you’re a BIOS developer, the answer to that question is YES! Specs often need to convey to the reader a lis...

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6:00 AM
William Leara
0
misc
6:00 AM

Prof. Metcalfe in Youthful 1985!

Prof. Metcalfe in Youthful 1985!
Prof. Metcalfe in Youthful 1985!

In my continuing exploration of The Computer Chronicles , the date is 24 October 1985 and the subject is Local Area Networks (LANs).  The ma...

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6:00 AM
William Leara
0
Computer Chronicles
6:00 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

  • Introduction to UEFI Conformance Profiles
    The UEFI Specification v2.11 is well over two thousand pages, and even the short list of “required elements” in §2.6 assumes a general-purpo...
  • Introduction to Open Platform Firmware
    Platform firmware development faces a fundamental challenge: every silicon vendor brings its own initialization model, configuration schem...
  • Introduction to Slim Bootloader
    Slim Bootloader (SBL) is an open-source boot firmware built from the ground up for Intel x86 systems. Designed to be small, fast, and secure...
  • 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...
  • 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 ...

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      • Government Collecting Telephone Metadata…in 1985!
      • You SHALL NOT Skip This REQUIRED Blog Post
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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
    ISO with bootloader written to a CDROM not showing up as a boot entry in bios [closed]
  • Vincent Zimmer's blog
    Pushing the frontier of knowledge

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