Cassette Aided Operation System
CAOS | |
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Operating system for the KC 85 . |
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developer |
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License (s) | Information is missing |
First publ. | 1984 |
Current version | 4.2 (1st quarter 1989) |
Languages) | English |
Others | Development stopped |
The Cassette Aided Surgical System ( CAOS , cassette-based operating system) is in the 1980s in the German Democratic Republic developed computer - operating system , which among other things, the operation of the small computer KC 85/2 to 85/4 KC possible. It is controlled via a command line , data processing is possible with an 8-bit bandwidth. CAOS occupies around 4 kilobytes of ROM memory, and other data is stored on audio cassettes.
As software developed independently in the GDR, CAOS is incompatible with the computers / operating systems common in western countries. The work on CAOS was stopped after the reunification of Germany , because the hardware necessary for operation was no longer manufactured.
Versions
- CAOS 2.2 (HC 900, KC 85/2)
- CAOS 3.1 (KC 85/3)
- CAOS 4.2 (KC 85/4)
Unpublished versions
A flyer dated June 11, 1990 listed the following versions that apparently did not appear:
- CAOS 5.0 (KC 85/4)
- OS / pi 90 (KC 82 / 2-3)
Homebrew developments
Since the fall of the Wall, private users have been developing new versions, some of which require some modifications to the hardware (so-called KC 85/5 ):
- CAOS 4.3 (KC 85/4)
- CAOS 4.4 (KC 85/4)
Web links
Individual evidence
- ↑ Sven Stillich: GDR computer: With kilobytes against the class enemy . In: Spiegel Online . December 22, 2009 ( spiegel.de [accessed December 11, 2018]).
- ↑ Offer for the KC85 / 2/3/4 system. (jpeg) Retrieved December 11, 2018 .
- ↑ https://www.iee.et.tu-dresden.de/~kc-club/02/KCN02-01/KCN02-01-04.HTML