Sinclair ZX81

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Descriere

Calculatorul  ZX81 este un calculator personal produs de compania Sinlair Reseach din Marea Britanie. A fost lansat in 1981 la un pret de 49.95 lire sub forma de KIT sau  69.95 lire asamblat.

Fiind un calculator ieftin a avut un succees foarte mare, fiind vandute mai mult de 1,5 milioane unitati pana la oprirea productiei in 1984.

A mai fost produs sub licenta de firma TIMEX in SUA.

NAME ZX 81
MANUFACTURER Sinclair
TYPE Home Computer
ORIGIN United Kingdom
YEAR march 1981
BUILT IN LANGUAGE Sinclair Basic
KEYBOARD Touch-sensitive keyboard, 40 keys
CPU Zilog Z80A
SPEED 3.5 MHz
RAM 1 KB (901 bytes available, up to 64 KB)
ROM 8 KB
TEXT MODES 32 x 24 (but 2 lines are reserved for system messages and commands)
GRAPHIC MODES 64 x 44
COLORS Black and white
SOUND None
SIZE / WEIGHT 167 x 175 x 40 mm / 350gr
I/O PORTS Z80 Bus, tape, video
POWER SUPPLY 9V DC , 600 mA (centre polarity = +ve)
PRICE Kit :£50 (UK, june 1981) / Ready-built : £70 (UK, june 1981)

 

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