The IBM 1620, an affordable “scientific computer” from 1959.

ibm1620

The IBM 1620 was released by IBM on October 21, 1959, touted as an inexpensive "scientific computer."

Some users gave it the acronym CADET: "Can't Add, Doesn't Even Try." After a total production of about 2,000 units, its run ended November 19, 1970.

More: Wikipedia, Invisible Agent.

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