The whole computer was designed around the LH5801, an 8-bit CPU similar to the Zilog Z80, but all laid-out in power-saving CMOS circuits.

Equipped with 2 KB of on-board RAM, the programming language is BASIC.

Some earlier model PC-1500s will show a value 1 less in the FOR...NEXT counter on exiting the loop compared to later PC-1500s and the PC-1600.

The PC-1500 allows special abbreviations, and the syntax can also look as follows: The design of initial prototypes of EMKE series of public transport cash registers were built around customized versions of the PC-1500 and its Hungarian clone PTA-4000.

The series production models used almost exclusively in Hungarian regional and national bus services up to present day, are built around a version designed by EMKE and are heavily influenced by the PC-1500 design.