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Home Digital Electronics Memory and Storage Comments

  • Question
  • A CD-ROM is a form of read-only memory in which data are stored as ________.


  • Options
  • A. magnetic "bubbles"
  • B. magnetized spots
  • C. "pits" on an optical disk
  • D. tiny "pinholes" in an opaque substance

  • Correct Answer
  • "pits" on an optical disk 


  • Memory and Storage problems


    Search Results


    • 1. Assume a ROM to be tested is compared with a known good ROM. If the checksums differ, the ROM is ________.

    • Options
    • A. very likely to be good
    • B. definitely good
    • C. very likely to be bad
    • D. definitely bad
    • Discuss
    • 2. Flash memories are so called because of the rapid ________ times.

    • Options
    • A. read and write
    • B. format and erase
    • C. erase and read
    • D. erase and write
    • Discuss
    • 3. In DRAM operations, it is assumed that R/W is in its ________ state during a ________ operation.

    • Options
    • A. HIGH, read
    • B. Hi-Z, write
    • C. HIGH, write
    • D. Hi-Z, read
    • Discuss
    • 4. The number of 16k × 4 memories needed to construct a 128k × 8 memory is ________.

    • Options
    • A. 4
    • B. 8
    • C. 12
    • D. 16
    • Discuss
    • 5. The minimum number of address lines needed for a 64K memory is ________.

    • Options
    • A. 10
    • B. 12
    • C. 14
    • D. 16
    • Discuss
    • 6. All rows in a 2118 dynamic RAM need to be refreshed ________.

    • Options
    • A. every second
    • B. every millisecond
    • C. every 50 milliseconds
    • D. every 2 milliseconds
    • Discuss
    • 7. When a computer is executing a program of instructions, the CPU will ________ memory locations as dictated by the program instructions.

    • Options
    • A. format
    • B. scan
    • C. store data into
    • D. verify
    • Discuss
    • 8. Read-only memory is memory ________.

    • Options
    • A. that has unlimited storage capacity
    • B. whose data can never be altered by the user
    • C. that must be refreshed periodically or it will lose storage
    • D. that maintains storage as long as power is applied
    • Discuss
    • 9. Floppy disks are organized into concentric rings called ________.

    • Options
    • A. tracks
    • B. arrays
    • C. sectors
    • D. cells
    • Discuss
    • 10. Information that is stored in an EEPROM ________.

    • Options
    • A. can be modified by performing a memory write operation
    • B. is stored by the manufacturer and cannot be changed
    • C. is lost if power is interrupted
    • D. can be erased by applying high voltage to each storage location
    • Discuss


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