National JR-100

Historia

The National (also known as Panasonic or Matsushita in other countries) JR series was pretty popular in Japan. Small quantities were sold outside Japan, in New Zeland among other countries. Little is known about the first system of the range (please help!). It was obviously an initiation machine with black & white display and rubber keyboard. The JR 100 was followed by the JR 200.

Características

Lenguajes  	Basic interpreter
Teclado  	Poor rubber Teclado
CPU  	MN 1800A (6802 compatible)
Velocidad  	890 KHz
RAM  	16 KB (up to 32 KB)
VRAM  	1 KB
ROM  	8 KB
Modos de Texto  	32 chars. x 24 lines
Modo gráfico  	64 characters with 6 x 7 dot matrix, 64 semi-graphic characters with 8 x 8 matrix, 32 User Defined Graficos with 8 x 8 matrix
Colores  	Monochrome
Sonido  	Buzzer
Puertos de entrada/salida  	Monitor, Expansion, Tape
Almacenamiento interno  	None
Fuente de alimentación  	Model JR-A12 Alimentacion adaptor., Output: +7.8V (700 mA), -8V (10 mA), +17V (130 mA)
Perifericos  	An expansion unit (JR-U05) was created which added an extra 16 KB RAM, joystick and RS232 port. It was only available in Japan.
Precio  	NZ$299 when introduced in New Zeland in 1983