AN/UYK-20

The AN/UYK-20 "Data Processing Set" was a robust little computer that was built by the company UNIVAC in the 1970s and used by the U.S. Navy for small and medium-sized systems at sea and on land. He had a non-volatile magnetic core memory, and was protected by a sturdy metal casing that was designed so that it fit through a 25 inch ( 63.5 cm) by measuring, round hatch.

In 1972, the then Chief of Naval possessed material due to the rapid increase in small computer types in the inventory of the Navy that the AN/UYK-20 (V ) should be used in systems that require a small processor.

Both of programmers and operators received the computer nicknamed " Yuck Twenty" (translated as " Yuck twenty ").

Besides its use in various systems of the entire fleet of the computer has been used to form the data system technician in the U.S. Navy in the subjects of " theory of digital computing " and " application ". The eight- or ten -week course was divided into the following subject areas:

• Macro-instructions
• Microinstructions
• Processor / emulator
• Data storage
• Input and Output
• Systematic troubleshooting

The AN/UYK-20 is still used, but now most systems have been replaced by its successor, the AN/UYK-44 that has the same instruction set.