Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX Spectrum T-shirts!

see details
Ready prompt T-shirts!

see details
ZX81 T-shirts!

see details
Arcade cherry T-shirts!

see details
Spiral program T-shirts!

see details
Atari joystick T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Atari ST bombs T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Moon Lander T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
C64 maze generator T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details


BIT 90

This computer had a completely rubber keyboard a bit like the ZX-Spectrum. Basic statements and graphic symbols could be accessed via combinations of "function" keys such as CTRL, BASIC, FCTN and a special symbol key.

The BIT-90 could display 16 colors and 32 sprites, with a high-resolution of 256 x 192 pixels.

Like its little brother the BIT-60, the BIT 90 could directly accept Colecovision cartridges, and Atari 2600 cartridges through a special interface.

The BIT-90 is also supposed to be a Sega SC-3000 clone with which it bears a striking resemblance.

The BIT-90, like the BIT-60 seems to have been available in different colored models, at least one white and one grey.
Surely due to legal problems, this computer didn't last long.

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 or one of our partners.


I got this computer when I was 10 years. played a few games (had 5 or so). Does anyone know how I can find games for this computer. It still workes fine.

Wednesday 6th September 2017
Ray (Netherlands)

Coleco carts work but not all of them
also can not assign 2nd fire button to joystick for games
that use it so you have to use one button in keyboard and one in joystick

Friday 11th July 2014
Laios  (Greece)

I owned a Bit-90 when I was child and I always remember that everytime started to program, after a few lines it showed "Out of memory". Now I understand why, it has 1KB of RAM!! Great memories of 80''.

Sunday 19th May 2013
Fernando L


MANUFACTURER  Bit Corporation
TYPE  Home Computer
YEAR  ? 1983
KEYBOARD  Rubber keyboard, 66 keys with Basic statements and graphic symbols
ESC, CAPS LOWER, SHIFT (x2), CTRL, BASIC, FCTN, RETURN, BS (backspace), DEL, INS, RETURN, RST (Reset), arrow keys, symbol key
CPU  Zilog Z80A
SPEED  3.85 MHz
CO-PROCESSOR  Texas Instruments TMS-9929 (Video Generator)
RAM  18 kb (up to 64 kb), 1k left for programming
ROM  24 kb
TEXT MODES  32 x 24 with 16 colors
GRAPHIC MODES  64 x 48 (semi-graphic mode), 256 x 192
SOUND  3 voices, 5 octaves
SIZE / WEIGHT  Unknown
I/O PORTS  Cardridge slot, Cassette interface (2400 bauds), RGB video output, RF TV output, Audio output, 2 x Joystick port (Atari standard), Expansion Bus
PERIPHERALS  Memory expansion
PRICE  Unknown

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -