Facts

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Fast Facts About Our PDP-12
  • Our PDP-12 is #435.
  • Like all PDP-12s, it was built between 1969 and 1972.
  • It has 8K (8,192) words of 12-bit memory in two 4K "stacks" (memory units).
  • It has two TU55 tape drives.
  • It has a VR12 CRT display, which is essentially an oscilloscope (not a television or pixel display).
  • It does not have a keyboard, but has a console with switches to load and read data and control the CPU.
  • It sold for the base price of $27,900, which is equivalent to about $186,000 in 2017.
  • It weighs about 800 pounds (about 360 kilograms).
  • It is roughly the size of a refrigerator.
  • It burns around 700 watts idle and around 1400 watts with everything running.

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