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Notes |
Manufacturer |
Powertran Cybernetics (UK) |
Model |
Cortex |
Date Launched |
1983 ? |
Price |
£339 as a kit. |
Microprocessor type |
Texas Instruments TMS 9995 @ 3 MHz |
ROM size |
24 kilobytes |
Standard RAM |
64 kilobytes plus separate 16 KB video RAM. |
Maximum RAM |
Possibly 256 kilobytes |
Keyboard type |
Typewriter style with numeric pad. |
Supplied language |
Quite advanced BASIC plus an assembler/disassembler. |
Text resolution |
40 X 25 characters |
Graphics resolution |
256 x 192 pixels |
Colours available |
16 |
Sound |
Through internal speaker. |
Cassette load speed |
Baud rate was selected by the user. |
Special features |
Floating point numbers were handled using 48 bits, giving 11 decimal digits of accuracy – better than most other BASICs. |
Good points |
A large amount of available memory. |
Bad points |
There was no serial, parallel or monitor interface as standard (they were extra) – this was unusual for a relatively expensive machine. |
How successful? |
Sales seem to have been quite low. |
Comments |
The Cortex was promoted by the magazines Electronics Today International (who published assembly instructions) and Computing Today. |
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