Datatron

The Datatron is a family of decimal vacuum tube computers developed by ElectroData Corporation and first shipped in 1954.

The first systems were equipped with an "Electrodata 203" processor and were shipped to the Jet Propulsion Laboratory (JPL)[3] and the National Bureau of Standards (NBS) in 1954.

That same year design began on the "30-240" processor, enhanced to support magnetic tape.

[4] The Datatron has a word size of ten decimal digits plus a sign.

[6] A later model, the Burroughs 220, added a small amount of magnetic core memory.