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OHIO Scientific

This computer is based on the MODEL 500 CPU board. It is actually a Super Kit (see Model 500) assembled with a cassette interface and a keyboard. OHIO Scientific presented two enhanced versions of the Challenger IIP : the Challenger II Disk Systems and the Challenger III.

The Disk System version came with 16 KB of RAM (expandable to 192 KB)instead of ROM BASIC and one or two 8'' F.D. drives. The disk BASIC was automatically loaded into the RAM. Up to 4 independant users could be connected simultaneously. The basic version with a single F.D. drive costed $1964.

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I see this in 1985 in primary school in Macedonia. It was using for learning purposes.

Friday 22nd April 2005
ChallengermaN (Yugoslawia - Republic of Macedonia)


TYPE  Home Computer
YEAR  1978
BUILT IN LANGUAGE  Microsoft BASIC interpreter
CPU  6502
SPEED  1 or 2 Mhz.
RAM  4 KB expandable up to 36 KB
TEXT MODES  64 x 32
I/O PORTS  Tape, Monitor, Four Slots
POWER SUPPLY  internal P.S.U.
PRICE  $598 in assembled form

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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

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