TAJ Operating System

	Download a floppy image here in ZIP(84 KB) or self extract exe here(186 KB).
	Download documentation TODO.

Linux Resources

Linux Kernel

Intel Documentation

This is one of the best source of valuable information of x86 architecture.
	Intel Architecture Software Developer's Manual, Volume 1: Basic Architecture Intel Architecture Software Developer's Manual, Volume 2: Instruction Set Reference Manual A-M Intel Architecture Software Developer's Manual, Volume 3: System Programming Guide

AMD Documentation

AMD CPU Documents AMD's x86-64 Docs

Operating System Development

• Bran's Kernel Development tutorial
• Bonafide OS Development
• The Operating System Resource Center
• Christopher Giese's website
  • broken: John Fine's Home Page
  • broken: Write Your Own Operating System
  • mirror: (includes a .zip copy of the site) redir.no-ip.org
  • .bz2: dev.ifeelrandom.com
  • mirror: osdevbrasil.net
  • mirror: dev.ifeelrandom.com
  • mirror: files.osdev.org
  • mirror: wz.cz
  • web.archive.com: web.archive.org
• How to Write an Operating System
• NeuralDK OSDev Tuts
• BrokenThorn OS Development Tutorials
• OSDCOM
• Kernel 101
• The OsLib
• OS FAQ, overall design, VM design, threads..
• Memory Management
• Protected Mode
• Roll your own UNIX-clone OS
• int6.org - OS Development Resources Collection

Hardware Specifications

• Pierre's Library
• Ace OS 'specifications' page
• stockpile of hard-to-find datasheets

Processors

• Intel Manuals
• Processor Architecture
• x86-64(AMD64)

Motherboard Devices

• PIC, PIT, DMA, RTC, ..

Human Input Devices

• Serial Mouse
• Human Interface Devices
• PS/2 mice
• PS2 mouse driver

Video

• official VESA & VBE website

Storage

• official ATA working group
• another ATA/ATAPI website, includes reference driver
• an introduction to ATA/ATAPI commands. It contains a couple of ASM examples to read sectors and identify drives.
• Disk and Disc Drives
• collected links about Ultra DMA, on ATA drives and how PCI configuration comes.

Audio

• Sound Devices

Network and Communication ports

• Serial and Parallel port, SPP, EPP, ECP
• Networking Devices
• RTL8139 family datasheets

Buses

• Interconnect Buses
• official USB developers docs
• more USB info
• USB OHCI
• USB EHCI
• OHCI for FireWire
• OHCI mirror

Software Specifications

• Ralf Brown's Interrupt List
• The Boot Process
• Partitions
• File Systems
• Executable File Formats
• Plug'n'Play Specs
• Device Driver Interfaces
• FAT12-32

Other Specifications

• stockpile of technical documents (partly in Russian)
• Legos, ATX, NetPC's..

Source Code

• OSD Code Snippet Index
• stockpile of documents at singlix.org
• a reference implementation for malloc()

• OSD Kernels
• PM Kernels
• Selection from Bonafide
• DennisOS
• BOS
• LibOSDK
• LSE/OS

Larger Kernels

• BCOS
• Tabos
• Mobius
• Cosmos
• Clicker
• MenuetOS
• Daidalos
• BlueIllusionOS
• Agnix Kernel
• SolOS
• Minix 3
• AMOS

Non-hobby Kernels

• Linux
• OpenBSD
• L4

University Courses

• Advanced Operating Systems (NYU)
• Operating System Engineering (MIT) (2004) (2006)