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May 2024

Pardon the Interruption... A Brief History of Interrupts

Pardon the Interruption...  A Brief History of Interrupts
Pardon the Interruption... A Brief History of Interrupts

One of the most overloaded terms in the computer industry is interrupt .  As in:  IRQ5, NMI, APIC, LINT[1:0] , INT 13h , INTR ,  INT and IN...

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9:00 AM
William Leara
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CPU, Intel
9:00 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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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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