IBM 5100 (year 1975)
Note the math symbols on the keys. That's for programing APL language.
The IBM 5100 Portable Computer is a portable computer (one of the first) introduced in September 1975, six years before the IBM Personal Computer. It was the evolution of a prototype called the SCAMP (Special Computer APL Machine Portable) that was developed at the IBM Palo Alto Scientific Center in 1973. In January 1978, IBM announced the IBM 5110, its larger cousin, and in February 1980 IBM announced the IBM 5120. The 5100 was withdrawn in March 1982.
When the IBM PC was introduced in 1981, it was originally designated as the IBM 5150, putting it in the "5100" series, though its architecture was not directly descended from the IBM 5100.
2018-06-08 from IBM 5100
Hacker Lore Keyboards
- History of Emacs and vi Keys
- Space-Cadet Keyboard
- How to Create APL or Math Symbols Keyboard Layout
- Univac F-1355-00 Keyboard
- Ann Arbor Ambassador 60 Terminal
- ADM-3A Terminal
- DEC VT100 Terminal
- IBM Model M keyboard
- Sun Microsystems Type 6 Keyboard
- Control Key and Capslock Key Positions in Old Keyboards
- The Idiocy of Happy Hacking Keyboard
If you have a question, put $5 at patreon and message me.