Electronika 60

The Electronika 60 () is a computer made in the Soviet Union by Elektronika in Voronezh.
Overview.
Alone the "Electronika 60" is a rack-mounted computer with no built-in display or storage devices. It was usually paired with a 15IE-00-013 terminal and I/O devices. The main logic unit is located on the M2 CPU board.
M2 CPU Technical Characteristics:
The original implementation of "Tetris" was written for the Electronika 60 by Alexey Pajitnov. As the Electronika 60 has no graphics capability, text was used to form the blocks.