Magnetic-core memory of Siemens computer

Magnetic-core memory of Siemens computer

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Credit: PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Magnetic-core memory board of a Siemens computer. It uses tiny magnetic toroids (rings), the cores, through which wires are threaded to write and read information. This technique was in use for about 20 years between 1955 and 1975. Then integrated-circuit RAM (random access memory came on the market and are now the most common type of memory found in personal computers and different other electronic devices like cellular phones, USB sticks and printers.

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Keywords: array, chip, chips, circuit board, circuits, close-up, coloured, computer, computer science, computing, core memory, detail, electronic, electronics, ferrite core memory, ic, integrated circuit, macrophotograph, magnetic core, magnetic core memory, memory, microchip, microchips, microcircuit, microcircuits, pc, personal computer, ram, random access memory, random-access memory, science, semiconductor storage, silicon chip

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