Galaksija (computer)

It was featured in the special edition Računari u vašoj kući (Computers in your home, written by Dejan Ristanović) of a popular eponymous science magazine, published late December 1983 in Belgrade, Yugoslavia.

[1] This meant that only a relative minority of people owned one — mostly a ZX Spectrum or a Commodore 64, though most Yugoslavs were only familiar with a programmable calculator.

[2] According to his own words, some time in 1983, Voja Antonić, while vacationing in Hotel Teuta in Risan, was reading the application handbook for the RCA CDP1802 CPU and stumbled upon CPU-assisted video generation.

Before he returned home to Belgrade, he already had the conceptual diagrams of a computer that used software to generate a video picture.

[5] This number may in reality be greater if people who did not purchase any kits (including PCB and ROMs) were accounted for.

Components were provided by various manufacturers and suppliers:[6] Later, the Institute for School Books and Teaching Aids (Serbian: Zavod za udžbenike i nastavna sredstva), together with Elektronika Inženjering, started mass commercial production of Galaksija computers, mainly to be delivered to schools.

ROM "B" contained added Galaksija BASIC commands and functions (mostly trigonometric) as well as a Z80 assembler and a machine code monitor.

Instead, users had to execute a Galaksija BASIC command to run a machine code program from ROM "B" before they can gain additional features.

Tape interface circuitry was rudimentary – other than few elements controlling the levels it was essentially one-bit digital equivalent to the one in the ZX Spectrum.

It was, however, possible to utilize the cassette tape port as an audio output as well like it is done in ZX Spectrum (its "EAR" connector).

In Autumn 1983, Računari's editor contacted Zoran Modli, the DJ of Radio Belgrade 202's Ventilator 202 program, asking him to broadcast software as part of the show.

[1] Over three years Ventilator 202 broadcast 150 pieces of software for the Galaksija, the Spectrum and Commodore 64, including a digital magazine, named Hack News.

This saved the ROM space by reducing lookup tables but significantly increased the complexity of single-layer keyboard PCB such that it alone required 35 wire links.

The full character set, featuring the logo of Elektronika Inženjering