Overview
Given the tendency of websites to disappear over time, I archive sites that I find particularly helpful.
Ralf Ohmberger’s Homepage
Command: wget -mpck -U "" -e robots=off -w 1 https://www.amplifier.cd
Snapshots:
Ralf Ohmberger’s homepage has a wealth of high-quality, original photos of test equipment including detailed descriptions of repairs. He also publishes application notes, machining tips and other interesting tidbits.
IOCCC
URL: http://ioccc.org
Command: wget -mpck -U "" -e robots=off -w 1 http://ioccc.org
Snapshots:
The International Obfuscated C Code Contest (IOCCC). In their own words:
- To write the most Obscure/Obfuscated C program within the rules.
- To show the importance of programming style, in an ironic way.
- To stress C compilers with unusual code.
- To illustrate some of the subtleties of the C language.
- To provide a safe forum for poor C code. :-)
Frain Research
URL: http://web.frainresearch.org:8080
Command: wget -mpck -U "" -e robots=off -w 1 -X "/projects/genealogy" http://web.frainresearch.org:8080
Snapshots:
Consolidates large amounts of information on Q-bus modules into comparison tables. Also contains details of a sample PDP-11/73 build including custom PCBs to interface an ATX power supply and provide front panel functions.
SIMH, Trailing Edge
URL: http://simh.trailing-edge.com
Command: wget -mpck -U "" -e robots=off -w 1 http://simh.trailing-edge.com
Snapshots:
The homepage of SIMH also contains information on DEC processors such as the J-11/F-11/T-11, including stories from the designers and low-level details like microcode listings, technical papers about historic computer systems, and software kits for use with SIMH.
UNIX 7th Edition Manual - Volume 2
URL: https://wolfram.schneider.org/bsd/7thEdManVol2/
Command: wget -mpck -U "" -e robots=off -w 1 -X "*" -I "/bsd/7thEdManVol2" https://wolfram.schneider.org/bsd/7thEdManVol2/
Snapshots:
The UNIX 7th edition manual came in three physical volumes: 1, 2A and 2B. This
archive is a(n almost) complete archive of the material in volumes 2A and 2B,
describing the various parts of the system in more detail. Volume 1 was a copy
of the online man pages. Coverage includes introductions and references for
many common UNIX utilities such as sh, sed, make, awk, etc.
4.4BSD Documents
URL: https://docs.freebsd.org/44doc/
Command: wget -mpck -U "" -e robots=off -w 1 -X "*" -I "/44doc" https://docs.freebsd.org/44doc/
Snapshots:
This is a snapshot of the 4.4BSD Lite documents. Many are useful for
programming under 2BSD on the PDP-11 or 4BSD on the VAX. Examples include
documentation for curses.h, system calls, vi, and networking. Also includes A
Guide to the Dungeons of Doom, the manual for rogue.
2BSD Patches
URL: ftp://moe.2bsd.com/2.11BSD/
Command: wget -mpck -U "" -e robots=off -w 1 ftp://moe.2bsd.com/2.11BSD/
Snapshots:
Contains patch sets for 2.11BSD. Snapshot 2018-08-22 contains patch sets 001-450.
The Design and Implementation of the 4.4BSD Operating System
URL: https://docs.freebsd.org/doc/6.0-RELEASE/usr/share/doc/en/books/design-44bsd/index.html
Command: wget -mpck -U "" -e robots=off -w 1 -X "*" -I "/doc/6.0-RELEASE/usr/share/doc/en/books/design-44bsd/" https://docs.freebsd.org/doc/6.0-RELEASE/usr/share/doc/en/books/design-44bsd/
Snapshots:
This is a wonderful overview of the 4.4BSD kernel. Useful for anyone intending to dive into 2.11BSD’s internals.