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Notes |
Manufacturer |
Tandy Radio Shack (US) |
Model |
Color Computer Model 3 |
Date Launched |
July 1986 |
Price |
Approx. £300 |
Microprocessor type |
Motorola 6809E @ 1.78 MHz |
ROM size |
16 kilobytes ? |
Standard RAM |
128 kilobytes |
Maximum RAM |
512 kilobytes officially. |
Keyboard type |
Typewriter style |
Supplied language |
Extended BASIC |
Text resolution |
Up to 80 x 28 characters |
Graphics resolution |
640 x 192, 320 x 192, 160 x 192 pixels in BASIC, 640 x 225 in machine code. |
Colours available |
4, 16 or 64 depending on resolution |
Sound |
Single channel through television. |
Cassette load speed |
1500 baud |
Special features |
Had a custom graphics chip called GIME which greatly improved the display compared to the Model 1 and Model 2. |
Good points |
Was compatible with earlier models of the Tandy Color Computer. |
Bad points |
It was still an 8-bit computer, and by 1986 most new computers were 16-bit. |
How successful? |
Popular in the US. Hardly known in the UK. |
Comments |
Often called the CoCo 3, the Tandy Color Computer Model 3 was an updated version of their successful Model 1 and 2 and had quite an impressive specification. However it arrived a little too late, after the home computer market had peaked. |
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