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System One

Extra Computer Corp. (USA)

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Name System One
Manufacturer Extra Computer Corp. (USA) Type Apple II compatible
Production start (mm-yyyy) Production end (mm-yyyy) -
RAM 64Kb ROM 24Kb
CPU Z80A - 6502 - Mhz
Operating System CP/M 2.2, Apple-Dos 3.3
Text (Cols x Rows) 40/80 x 24
Graphics 280 x 192 16 colours
Sound Speaker
Storage memory Floppy 5.25" 143Kb
Serial port Parallel port
Others port 7 slots compatible Apple II, NTSC, RF, game,
Original price   Currency original price 800 USD
Units sold
Note It's a clone of the Apple II. 
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