Hobby ZR-84

Hobby ZR-84 was an educational and home computer developed by MICROSYS Beočin in SFRY (now Serbia) in 1984.

Specifications
Source:


 * CPU: Z80A running at 4 MHz
 * ROM: 12 KB BASIC
 * Primary memory: 16 KB (expandable up to 48 KB)
 * Secondary storage: cassette tape, floppy drive
 * Display: text mode 16 lines with 64 characters each; low-res graphics mode 128x48
 * Sound: separate board
 * I/O ports: composite and RF video, cassette tape storage, and expansion connector