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C > CZERWENY > CZ-1000 Plus   

CZERWENY  Czerweny
CZ-1000 Plus

TADEO CZERWENY "CZ" is a an electromechanical company, which was founded by Tadeo Czerweny in September 1958. It is located in Parana, Entre Rios province, in Argentina. The company made transformers, electric motors, etc. In the 80´s Czerweny marketed the Timex Sinclair´s models, under its own name.

The CZ-1000 Plus used a brand new case, as opposed to the CZ-1000, 1500 and 2000 which used original Timex-Sinclair ones. But inside, it was just a Sinclair ZX-81 with 2 KB RAM, with a new plastic case and a chicklet keyboard.

At least two versions have been produced. The grey-key version used a dozen of standard 74xx chips. The black-key version featured a new card, redesigned by Czerweny, with only four ZX-81 chips. It also held one DIN joystick plug.

In Argentina Czerweny models competed with Brazilians TK 83, 85, 90x and genuine Sinclair machines, but CZ sold more machines than them.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.
NAME  CZ-1000 Plus
TYPE  Home Computer
ORIGIN  Argentina
YEAR  august 198?
KEYBOARD  Chicklet keyboard (ZX Spectrum style), 40 keys
CPU  Zilog Z80A
SPEED  3.5 MHz
CO-PROCESSOR  Ferranti ULA in the 'grey' version
TEXT MODES  32 x 24 (but 2 lines are reserved for system messages and commands)
COLORS  Black and white
SIZE / WEIGHT  Unknown
I/O PORTS  Expansion bus (Z80 bus), tape interface, RF video output
POWER SUPPLY  External AC adaptor
PRICE  Unknown

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