History

Big archive (digital, 8-bit, portables etc) https://vt100.net/manx/about

Unix

https://en.wikipedia.org/wiki/Compatible_Time-Sharing_System

https://en.wikipedia.org/wiki/TYPSET_and_RUNOFF

shell services https://en.wikipedia.org/wiki/SDF_Public_Access_Unix_System

Hardware

https://www.computercollection.net/

8080

S-100 bus

CP/M page

Mirrors:

   barnyard.co.uk in the UK.
   uxpro.com in the USA.
   cpm.cn-k.de in Germany.
   braeworks.org in Australia.
   datatraveler.co.uk in the UK.
   cpm.retropc.se in Sweden.

big collection

ZX Spectrum, teletext stuff

Intel

4004

Z80

educational Z80

ZX Spectrum collection

worldofspectrum

http://www.shadowmagic.org.uk/

The Z80 development kit

See also zsdcc, hisoft C

Zeus Assembler

TRS-80 soft

BBC Micro

Software archive BBC Basic

Gigatron

процессор, реализованный на мелкой логике

ROMs archive

https://github.com/Abdess/retroarch_system

Xerox

Кронос - Based on N.Würth' Lilith, extended from 16 to 32 bits.

PDP-11

УКНЦ

Performance https://retrocomputingforum.com/t/the-wide-ranging-performance-of-the-pdp-11/2615

Apple

Macintosh development stories

Atari

6502 assembler

SGI

https://irixnet.org/

HP

HP 9000 - first 32-bit CPU

Networking

internet news

https://www.eternal-september.org/groups.php?hierarchy=comp

Interfaces

GPIB (IEEE 488) https://www.hp9845.net/9845/tutorials/hpib/

Internet

https://en.wikipedia.org/wiki/Archie_(search_engine)

https://en.wikipedia.org/wiki/Gopher_(protocol)

User groups

share.org

Graphics

https://en.wikipedia.org/wiki/Evans_%26_Sutherland

https://en.wikipedia.org/wiki/3dfx

https://en.wikipedia.org/wiki/IrisVision

Text editors

https://en.wikipedia.org/wiki/Gypsy_(software)