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Home ‣ Digital Electronics ‣ Memory and Storage Comments
  • Question

  • Why are ROMs called nonvolatile memory?


  • Options
  • A. They lose memory when power is removed.
  • B. They do not lose memory when power is removed.

  • Correct Answer
  • They do not lose memory when power is removed. 

    • Memory and Storage problems

    Search Results

    • 1. A 64-Mbyte SIMM is installed into a system, but when a memory test is executed, the SIMM is detected as a 32-Mbyte device. What is a possible cause?

    • Options
    • A. The memory module was not installed properly.
    • B. The voltage on the memory module is incorrect.
    • C. The most significant address line is stuck high or low.
    • D. The address decoder on the SIMM is faulty.
      • Discuss
    • 2. For the given circuit, what memory location is being addressed?


    • Options
    • A. 10111
    • B. 249
    • C. 5
    • D. 157
      • Discuss
    • 3. The location of a unit of data in a memory array is called its ________.

    • Options
    • A. storage
    • B. RAM
    • C. address
    • D. data
      • Discuss
    • 4. On a CD-ROM, ________ are raised areas representing a 1.

    • Options
    • A. mounds
    • B. lands
    • C. holes
    • D. pits
      • Discuss
    • 5. Data is written to and read from the disk via a magnetic ________ head mechanism in the floppy drive.

    • Options
    • A. cylinder
    • B. read/write
    • C. recordable
    • D. cluster
      • Discuss
    • 6. How many address bits are needed to select all memory locations in the 2118 16K × 1 RAM?

    • Options
    • A. 8
    • B. 10
    • C. 14
    • D. 16
      • Discuss
    • 7. Eight bits of digital data are normally referred to as a:

    • Options
    • A. group.
    • B. byte.
    • C. word.
    • D. cell.
      • Discuss
    • 8. How many 1K × 4 RAM chips would be required to build a 1K × 8 memory system?

    • Options
    • A. 2
    • B. 4
    • C. 8
    • D. 16
      • Discuss
    • 9. For the given circuit, which of the following is correct?


    • Options
    • A. The number 5 is being written to the memory at address location 203.
    • B. The chip has not been enabled, since the EN terminal is 0; therefore, nothing will be written to the chip and the output is tri-stated.
    • C. Decimal 10 is being written into memory location 211.
    • D. The read/write line is LOW; therefore, decimal 5 is being stored at memory location 211.
      • Discuss
    • 10. A 64-bit word consists of ________.

    • Options
    • A. 4 bytes
    • B. 8 bytes
    • C. 10 bytes
    • D. 12 bytes
      • Discuss

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