NAME  

Challenger 1P

MANUFACTURER  

OHIO Scientific

TYPE  

Home Computer

ORIGIN  

U.S.A.

YEAR  

1978

BUILT IN LANGUAGE  

Microsoft BASIC

KEYBOARD  

Full stroke 53 keys

CPU  

6502

SPEED  

1 MHz.

CO-PROCESSOR  

None

RAM  

4 KB (static) expandable to 8 KB on board

VRAM  

1 KB

ROM  

8 KB

TEXT MODES  

24 chars. x 24 lines

GRAPHIC MODES  

Only built-in graphic characters

COLORS  

Monochrome

SOUND  

No sound

SIZE / WEIGHT  

Unknown

I/O PORTS  

Tape recorder (input/output jacks for 300 baud Kansas City Standard tape storage), Composite video

POWER SUPPLY  

Built-in 5V power supply unit

PERIPHERALS  

24 KB memory board, floppy discs

PRICE  

$495

 

Challenger 1P

Challenger 1P

 Ohio Scientific, based in Ohio, USA, was the maker of the Superboard II. The Challenger 1P and Challenger 2P were essentially cased versions of this single board system with integrated keyboard, a single 5 Volt power supply and the first 6502 version of Microsoft BASIC interpreter.

An optional floppy disk controller and a extra 24K of ram for this unit was available using a 610 expansion board.


The C1P-MF was an upgraded version of the C1P having 20 KB of RAM and one 90 KB floppy disc drive. Memory could be upgraded up to 32 KB.

The Superboard and its derivatives had good user support and many programs were available.