Pecom 64

Pecom 64 was an educational and/or home computer developed by Elektronska Industrija Niš of Serbia in 1985. Modern emulators for the system exist, along with software preservation efforts.

Specifications
The machine had the following specifications:
 * CPU: CDP 1802B 5V7 running at 2.813 MHz
 * ROM: 16 KB, with optional 16 KB upgrade containing enhanced editor and assembler
 * RAM: 32 KB
 * Secondary storage: cassette tape
 * VIS: (Video Interface System) CDP1869 / CDP1870
 * Text modes: 40 columns x 24 lines
 * Character set: 128 Programmable characters
 * Character size: 6x9 pixels
 * Graphics modes: None, but the character-set was re programmable (semigraphics) to simulate a 240x216 High Resolution display
 * Colours: A total of 8 foreground colours are available (with a limited choice of 4 per character and 1 per line of that character) and 8 background colours (defined for the whole screen).
 * Sound: 2 channels: one for tone generation with a span of 8 octaves, and 1 for special effect/white noise. Volume programmable in 16 steps.
 * I/O ports:cassette tape storage, composite and RF video, RS-232 and expansion connector
 * Power supply: 220V AC, 0.02 A, 4.5 W (built-in transformer)