Challenger 1P

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

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.