Pecom 64

Developer	Elektronska Industrija Niš
Type	Home computer
Release date	1985; 39 years ago (1985)
Media	Compact Cassette
Operating system	BASIC, Assembler
CPU	CDP 1802B 5V7 @ 2.813 MHz
Memory	32 kB
Display	VIS (CDP1869 + CDP1870)
Graphics	40 x 24 characters, 240 x 216 equivalent resolution using using semigraphics, 8 colors
Sound	Two channels
Related	Pecom 32

Pecom 64 was an educational and/or home computer developed by Elektronska Industrija Niš of Serbia in 1985.^[1][2][3] Modern emulators for the system exist,^[3] along with software preservation efforts.^[2][4]

Specifications

The machine had the following specifications:^[1][3][5]

• 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)