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.
Please consider donating your old computer / videogame system to Old-Computers.com or one of our partners from anywhere in the world (Europe, America, Asia, etc.).
NAME
CZ-1000 Plus
MANUFACTURER
Czerweny
TYPE
Home Computer
ORIGIN
Argentina
YEAR
august 198?
BUILT IN LANGUAGE
Sinclair Basic
KEYBOARD
Chicklet keyboard (ZX Spectrum style), 40 keys
CPU
Zilog Z80A
SPEED
3.5 MHz
CO-PROCESSOR
Ferranti ULA in the 'grey' version
RAM
2 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
Unknown
I/O PORTS
Expansion bus (Z80 bus), tape interface, RF video output
