The ZX 81 basic specification:
| CPU
|
Z80A
|
|
Speed
|
3.5Mhz
|
|
Word Length
|
8 bit
|
|
ROM
|
8k
|
|
RAM
|
1k
|
|
Graphic Modes
|
1
|
|
Text Modes
|
1
|
|
Colours
|
2
|
|
Date
|
1981
|
Aptly summed up in the 1983 Micro Catalogue "If you can't afford anything else, then the ZX81 is still an ideal beginners machine"
