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21 Cards in this Set
- Front
- Back
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Quipu
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Beaded necklace used in Inca Empire
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RAM
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Random access memory
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Main Memory
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Internal memory used for access at all times
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"Fake memory"
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Disks used to store temporary memory.
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Radar uses
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Delay lines
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Delay lines
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Converts bits into sound waves which cycle endlessly unless changed by the computer.
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Magnetic Drum
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Writable rotating memory unit, early form of a disk
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Williams-Kilburn Tubes
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Projection changed by dots and received on collection plate
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Magnetic Core Memory
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weaved wires with magnetic beads(bits) that can change magnetization.
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Wire in Magnetic Core can _____ and _____ magnetism of bits
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Detect and change
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First 4k
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1973
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MOS DRAMs replace
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Magnetic core arrays
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MOS
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Metal Oxide Silicone
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First 16k
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1976
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First 64k
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1979
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First Gigabyte
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2000
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Magnetic tape and punched cards
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store information
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9 rack magnetic tape=
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160mb
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62,500=
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5mb
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First Disk Drive
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Ramac 350
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Laser Disks
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DVD and Cd
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