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2090 0.9 Alpha


2090 2090 - A very simple and easy to use Busch microtronic 2090 emulator.

System Requirememts
Mac OS X 10.3 or later
Download Details
Company Stephan Kleinert
Version 0.9 Alpha
Post Date September 30, 2009
License Freeware
File Size 1 MB
There are no screenshots

2090 0.9 Alpha


2090 - A very simple and easy to use Busch microtronic 2090 emulator.
The Busch microtronic 2090 is an emulator for my first computer - the "Busch microtronic 2090".

2090 has almost the same features as KIM-1 in some respects, but it's primary purpose is educational.

It had a custom programmed TMS1600 4bit microprocessor, 64 Bytes of RAM, an ML-like programming language, a 6-digit 7-segment LED display and a custom hexadecimal keypad for programming.

Main features of 2090:

  • emulates the full 2090 instruction set
  • can load and save 2090 programs
  • 2 extra buttons can be wired to the 2090's 4-bit-inputs
  • the clock output can be wired to the 2090's 4-bit-inputs
  • one of the outputs can be wired to the system beeper.