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When data is read from memory, the stored data is extracted (removed) from memory and in the process the data is erased in the source. The work must be rewritten to the same storage location to restore it.
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That the data is not destroyed in the reading process, meaning it can be read over and over again without being rewritten.
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A core memory.
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A flip-Hop.
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Memory that loses its contents when the power is lost or interrupted from the source. A semiconductor memory is an example of volatile memory.
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It is a volatile memory.
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Memory that does not lose its contents when power is lost. Core memory is an example of non-volatile memory.
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Core storage stores data in the form of a magnetic field instead of an electric current such as in semiconductor storage.
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A very thin crystal made of semiconductor material that contains molecules that act as tiny magnets.
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2209, Why is bubble memory considered nonvolatile?
Since the molecules act as magnets, their polarity can be reversed allowing the storage of 1s or 0s in the magnetic field. (If power is lost, the data remains)
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Memory where permanently stored programs are placed by the manufacturer to perform routine tasks within the computer. (ROM cannot be changed by the user.)
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The working memory of the computer. Data can be read (retrieved) from or written (stored) into RAM. (Data in RAM can be changed by the user.)
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ROM memory that is not programmed by the manufacturer but programmed by the user with a special device before use. Once the user programs the PROM it cannot be changed.
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ROM memory that is not programmed by the manufacturer but programmed by the user with a special device before use. EPROMS can be erased by the user and reprogrammed with the latest release of a new program.
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By a burst of ultra-violet light. For this reason EPROMS should have a protective covering over the lens to avoid inadvertent corruption of erasure of the stored program.
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Internal, secondary and external storage.
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Storage within the arithmetic unit (usually has limited capacity but is very fast).
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Memory that is part of the computer system but is outside the main body of the CPU where programs and data are stored for future use.
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retain data.
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Magnetic disks, tapes, and drums.
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Punched cards and tapes, and magnetic tapes stored in files or cabinets. (Externally stored information is physically Secondary storage devices use magnetic fields instead of electrical current to store data so they don?t rely on power to separate from the computer.)
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In a number of invisible concentric circles called tracks.
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A disk address.
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By the bits per inch of track and the tracks per inch of surface.