The first model of the Sinclair ZX Spectrum Personal Compute was introduced in 1982 by Sinclair Research Limited and priced at 279 DM in 1986. It is quite small without its own monitor. It can work alone, but surely you won't know what it is doing. It can be connected to a TV set and cassette recorder. As its name implies the ZX Spectrum produces a colour output video signal. It contains a CPU, 48K RAM, ROM (read only memory) and an ULA (uncommitted logic array) chip.
Its keyboard is quite similar to a standard typewriter's one but each key can perform more than one function. All information stored in its memory is lost when it is switched off. One way of keeping the information for later use is by recording it on a cassette tape which serves as a floppy disk. Presented by K. Lanyi Scott to the Computer Center of Humboldt University, Berlin
Mrs. Lanyi got this first computer of hers from her parents as a gift in 1986. Using it she started learning BASIC. In 1998 when she got her position at the Computer Center much better personal computer had been created and become popular. It was preserved quite well and carefully kept along with two computing course manuals, a useful "Tipps and Tricks " guide and instructions for programming.