to allow backwards compatibility with the JR-200. Specifications: CPU: MN1800A + Z80A Clock speed: 4 MHz RAM: 82 KB ROM: 40 KB Graphics: 8 colors; 640x200; 320x200; 640x400 Sound: Yamaha 8910 (3 voices, 5 octaves) Connections: RGB, Composite and RF video, sound out, expansion, tape (600/2400 bauds), printer port, floppy drive, joystick OS: JR-BASIC 5.0, Extended Basic JR-800 A handheld model called JR-800 was launched in 1983 with a price of 128,000 yen, but it was not compatible with the previous JR computers. It was based around a Hitachi HD63A01V CPU (MC6801 compatible) running at 4.9152 MHz, with 16 KB of RAM, and featured a 192x64 pixel LCD screen. Specifications: CPU: HD63A01V Clock speed: 4.9152 MHz RAM: 16 KB ROM: 16 KB Graphics: monochrome LCD, 32x8 characters; 192x64 pixels Connections: tape, RS-232, printer, sound OS: BASIC Character set Semigraphics character set for the Matsushita JR series, as shown on the operations manual (JR-100U manual, pg.8). Characters are rendered using modern equivalents, the exact hardware font it not simulated. See also JR-BASIC Panasonic JR-200 Sharp MZ PC-8000 series References External links The Pocket Computer Museum entry on the National JR-800 handheld computer BINARIUM museum entry on the Panasonic JR-100 (German language) Home computers Panasonic computers Character sets