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Basic Input/Output

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October 2019

PCI-SIG Launches Webinar Series

PCI-SIG Launches Webinar Series
PCI-SIG Launches Webinar Series

The PCI-SIG has started a webinar series!  The videos in the series are free and open to all.  In a manner similar to the DMTF , the videos...

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7:00 AM
William Leara
0
PCI
7:00 AM

Announcing: Publication of USB4!

Announcing:  Publication of USB4!
Announcing: Publication of USB4!

Quite a milestone:  the USB-IF published the USB4 specification in August, 2019.  From the USB-IF: Dear USB-IF members, I’m excited to a...

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

SMBIOS: now v3.3.0

SMBIOS:  now v3.3.0
SMBIOS: now v3.3.0

Big news from the DMTF :  SMBIOS v3.3.0 has been published. The new SMBIOS spec is available at: https://www.dmtf.org/sites/defa...

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7:00 AM
William Leara
0
manageability, smbios, specifications
7:00 AM

Webinar: How to Create a Secure Development Lifecycle for Firmware

Webinar: How to Create a Secure Development Lifecycle for Firmware
Webinar: How to Create a Secure Development Lifecycle for Firmware

Update:  the recording of this webinar is now available on demand on YouTube: https://www.youtube.com/watch?v=TtWhULAkqb0 From the UEF...

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7:00 AM
William Leara
0
security
7:00 AM

“Hello World” Quick-Start with edk2-stable201908

“Hello World” Quick-Start with edk2-stable201908
“Hello World” Quick-Start with edk2-stable201908

Periodically, I've written articles describing how to setup the EDK on a system and configure it to build a basic "Hello, World...

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7:00 AM
William Leara
9
EDK
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...
  • 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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      • PCI-SIG Launches Webinar Series
      • Announcing: Publication of USB4!
      • SMBIOS: now v3.3.0
      • Webinar: How to Create a Secure Development Lifecy...
      • “Hello World” Quick-Start with edk2-stable201908
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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
    Issue with Ubuntu Installation - No Bootable Device and BIOS Password Lock [closed]
  • Vincent Zimmer's blog
    April showers....

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