Technical Background

Definitions (Arbitration, DMA...)
Micro Channel Architecture (MCA slots, pinouts, features, transfer modes, SCB etc.)
Watchdog Timer

BIOS & Related Topics
   Exploring The ROM BIOS (PC Magazine article)
   ABIOS (Byte article)
   Loadable ABIOS (selected late PS/2s)
   Why Int 4Bh?
   Int 15h Index (from David Beem)
   CMOS Data Area (accessed via I/O addr 70h and 71h)
   IBM ROM BASIC
   The First 30 Seconds What is the POST? (PCmag article)

Memory Technology Explained (DRAM, SRAM, VRAM, read/write cycles etc.)

Serial Diagnostic Link (Type 4 complex)

ISA Interrupt Sharing (PS/2 Model 25 & 30)

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 20 Jan 2024 - Changelog | About | Legal & Contact