Elektronika BK 0010-01
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This is one in a series of computers in the Russian Elektronika BK series of PDP-11 clones. This the second model, which follows the 0010.
The machines are based on the K1801VM1 CPU, and is compatible with DECs LSI-11 machines, copying the PDP-11 internal architecture.
The БК-0010.01 (sometimes referred to as -0010-01), is essentially the same machine, but with a conventional full-travel keyboard and a Vilnius BASIC p-code compiler in the ROM, correcting the weakest points of its predecessor.
While the BASIC dialect used is quite powerful and well-optimized (it is actually a somewhat scaled-down clone of MSX BASIC), the keyboard is a mixed blessing. While it is much more comfortable to work with, its quality left much to be desired, and the keys were prone to sticking, significant bounce and wore quickly, though a model with a further improved keyboard became available later. The FOCAL interpreter was not dropped but instead shipped on an external ROM cartridge that could be inserted into the Q-Bus slot.
Alexey Pajitnov's original version of Tetris was written for the Elektronika 60 computer, which was also a PDP-11 clone. It used green brackets to represent the blocks that make up tetrominoes.
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This exhibit has a reference ID of CH67797. Please quote this reference ID in any communication with the Centre for Computing History.