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O > OHIO SCIENTIFIC  > Superboard II   


OHIO Scientific
Superboard II

The Superboard II, also called Model 600, was quite the same board as the british clone Compukit UK-101.

It came in only ready built version and did not featured neither power regulation on board - User had to build or buy a 5V external power supply - nor RF modulator to display on a standard TV, but only a composite video output.

A 40 pin IC socket allowed an expansion board and OSI bus to be connected, giving access to memory expansion (up to 64 KB) and floppy drive controller.

See in the 'Read more' section a very interesting information about Mike Cheiky, the founder of OSI.



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I have my original Superboard II on the wall in the shed. It no longer works due to Mr Rat releaving him self on the pcb. I had the hand soldered 64x40 character, 512x320 pixel graphics option. i have the work notes to go the mod somewhere. i will have a mint condition C1P and Orange ''green screen'' CRT $-)

          
Wednesday 17th May 2017
jeff (Australia)

My first computer. Learned to code in BASIC and 6502 machine code. Wrote a ''snake'' type game and high-speed machine-code line drawing routines so that I could animate a rotating cube in real time. I expanded the memory to 12K by piggy-backing 2114 chips on top of the ones on the board and wiring up the chip $ pin to the address decoder chip. Good Times. Best story though is the night I brought it home from the store. It had been wrapped in tin foil - protection from static shock - so I though I''d just leave it sitting on the foil when I switched it on. Not a great idea. Fortunately, just blew the on-board fuse so I was back up and running in a few minutes.

          
Wednesday 12th April 2017
Andy B (Australia)

I used to play games on this with my brother and write rudimentary basic programs. I played hectic and new York taxi (and became one of the elite !).

          
Thursday 9th March 2017
Ben Grimer

 

NAME  Superboard II
MANUFACTURER  OHIO Scientific
TYPE  Home Computer
ORIGIN  U.S.A.
YEAR  1978
BUILT IN LANGUAGE  OSI BASIC interpreter
KEYBOARD  Full stroke 50 keys
CPU  6502
SPEED  1 MHz (could be overclocked to 2 MHz)
CO-PROCESSOR  None
RAM  4 KB expandable to 8 KB on board
VRAM  1 KB
ROM  8 KB (OSI BASIC + Monitor)
TEXT MODES  16 to 48 chars. x 16 lines
GRAPHIC MODES  None, but 128 graphic characters
COLORS  Monochrome
SIZE / WEIGHT  unknown
I/O PORTS  Tape recorder and printer ports
BUILT IN MEDIA  None
POWER SUPPLY  External 5V power supply unit
PRICE  $200 assembled


retro computing t-shirts and goodies
3D Cubes
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C64 maze generator
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Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

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