Before the Iron Curtain fell, SZTAKI used personal computers designed and manufactured in-house (not yet according to the IMB standard for the term as it is known today). The machine shown here is a Z80-based machine with the CP/M operating system - the first version of which was released in the United States in 1974, with various versions being marketed until 1983. One of the special features of the SZTAKI machine was that it was running a highly feature-rich word processing software of its time, also developed at the institute - Texter. One version of the machine was produced by BEAG - at that time, design was not, but production was difficult, and you always had to find a company that could produce the machine. SZTAKI's personal computer with a 5 inch floppy disk, Orion display and a printer made at the Telephone Factory formed a whole. The machines communicated with each other in a network of X.25s, which were the workstations of the SZTAKI offices of the late 1980s. In total, there were 80 of them in operation at SZTAKI, and the Hungarian accented keyboard was also a SZTAKI work.