The category of one-of-a-kind computers contains computer systems of which only one unit was ever produced. Such systems have typically been experimental prototypes and/or too massive, complex, and expensive to duplicate. Among these systems are the pioneering electro-mechanical and electronic computers made in the 1930s, 1940s, and 1950s, and, after that period, the largest supercomputing systems.
See also Category:Cryptanalytic devices.
This category has the following 3 subcategories, out of 3 total.
The following 101 pages are in this category, out of 101 total. This list may not reflect recent changes (learn more).