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IBM 608, the Glossary

The IBM 608 Transistor Calculator, a plugboard-programmable unit, was the first IBM product to use transistor circuits without any vacuum tubes and is believed to be the world's first all-transistorized calculator to be manufactured for the commercial market.^[1]

Emitter-coupled logic

In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family.

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Germanium

Germanium is a chemical element; it has symbol Ge and atomic number 32.

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History of IBM

International Business Machines (IBM) is a multinational corporation specializing in computer technology and information technology consulting.

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IBM 604

The IBM 604 Electronic Calculating Punch was the world's first mass-produced electronic calculator along with its predecessor the IBM 603. IBM 608 and IBM 604 are IBM unit record equipment and Programmable calculators.

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IBM 650

The IBM 650 Magnetic Drum Data-Processing Machine is an early digital computer produced by IBM in the mid-1950s.

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IBM 7070

IBM 7070 is a decimal-architecture intermediate data-processing system that was introduced by IBM in 1958. IBM 608 and IBM 7070 are IBM transistorized computers.

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Magnetic-core memory

In computing, magnetic-core memory is a form of random-access memory.

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Plugboard

A plugboard or control panel (the term used depends on the application area) is an array of jacks or sockets (often called hubs) into which patch cords can be inserted to complete an electrical circuit. IBM 608 and plugboard are IBM unit record equipment.

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Robert A. Henle

Robert A. Henle (1923 – January 27, 1989) was an electrical engineer, who contributed to semiconductor technology.

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Stored-program computer

A stored-program computer is a computer that stores program instructions in electronically or optically accessible memory.

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Thomas J. Watson Jr.

Thomas John Watson Jr. (January 14, 1914 – December 31, 1993) was an American businessman, diplomat, Army Air Forces pilot, and philanthropist.

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Transistor

A transistor is a semiconductor device used to amplify or switch electrical signals and power.

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Unit record equipment

Starting at the end of the nineteenth century, well before the advent of electronic computers, data processing was performed using electromechanical machines collectively referred to as unit record equipment, electric accounting machines (EAM) or tabulating machines. IBM 608 and unit record equipment are IBM unit record equipment.

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Vacuum tube

A vacuum tube, electron tube, valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

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References

[1] https://en.wikipedia.org/wiki/IBM_608