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This is the recovered Machine Room from 2005. Please don't expect wonders. The look and feel of this site is nine years old, and so is its code. Some of the functionality has been recovered while the rest of the site is modernised and restructured. Watch this space!
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[Image: ]
AN/USQ-20 (NTDS) with access doors open showing electronics module assemblies. Each of these assemblies is a removable unit containing a couple hundred 2 inch high by 3 inch wide single sided circuit boards of Diode-Transistor Logic, two transistors per board. Every board is encapsulated to protect it from humidity and salt. This was a Navy shipboard computer and thus is built like a "tank"! — I took this photo in the Computer History Museum in Mountain View, CA.
375x393 JPEG file (24.6 KiB). Contributed by RTC (more pictures like this). Unrated (0 votes).
Source: © R. Tim Coslet.
This entry has not been checked yet. It may contain errors in content, layout, pictures, et cetera.
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No known owners (I still own one | I used to own one). I have seen one.
Search Google or Ebay United States for Univac AN/USQ-20 (more links, auctions & searches)
Other series members
AN/USQ-17, AN/USQ-20, AN/UYK-8, UNIVAC 1218.
Quick View
Emphasis Military
Timeline Released: 1961
CPU type AN/USQ-20
CPU word length 30 bits
ROM Size 0  bytes
RAM Size 120 KiB
Maximum RAM Size 120 KiB

More technical info...