• Elektronika BK-0011 -  Электроника БК-0011  - soviet computer   - not works , tested, capacitors are missing on the motherboard , for repair or parts

          BK-0011 was released in 1989. It has 128 KiB of RAM divided into 16 KiB pages; its CPU is clocked at 4 MHz by default. 

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•  BK 0011M Some changes in the BK-0011, while minor, made it incompatible with earlier -0010 models. It cannot load 0010 programs from a cassette tape. Even if it could have loaded them, crucial subsystems, such as sound, are still incompatible. The manufacturer redesigned the machine, restoring compatibility with earlier models. The resulting model, the BK-0011M, quickly went into production, and most BK-0011 series computers are actually BK-0011Ms. Since the modifications were minor, most of the handful of -0011 models that made it to market have been upgraded to -0011M models by enthusiasts.