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History
Drum memory
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Drum memory was a magnetic data storage device invented by Gustav Tauschek in 1932 in Austria. Drums were widely used in the 1950s and into the 1960s as computer memory.
Drum memory of a Polish ZAM-41 [pl] computer
Drum memory of a Polish ZAM-41 [pl] computer
Drum memory from the BESK computer, Sweden's first binary computer, which made its debut in 1953
Drum memory from the BESK computer, Sweden's first binary computer, which made its debut in 1953
Computer memory
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Computer memory stores information, such as data and programs, for immediate use in the computer. The term memory is often synonymous with the terms RAM, main memory or primary storage. Archaic synonyms for main memory include core and store.
DDR4 SDRAM module. As of 2021[update], over 90 percent of computer memory used in PCs and servers was of this type.
DDR4 SDRAM module. As of 2021[update], over 90 percent of computer memory used in PCs and servers was of this type.
Electromechanical memory used in the IBM 602, an early punch multiplying calculator
Electromechanical memory used in the IBM 602, an early punch multiplying calculator
Detail of the back of a section of ENIAC, showing vacuum tubes
Detail of the back of a section of ENIAC, showing vacuum tubes
Williams tube used as memory in the IAS computer c. 1951
Williams tube used as memory in the IAS computer c. 1951