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Home Digital Electronics Memory and Storage Comments

  • Question
  • 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.

  • Correct Answer
  • The address decoder on the SIMM is faulty. 


  • Memory and Storage problems


    Search Results


    • 1. For the given circuit, what memory location is being addressed?


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

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

    • Options
    • A. mounds
    • B. lands
    • C. holes
    • D. pits
    • Discuss
    • 4. 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
    • 5. What is the major difference between SRAM and DRAM?

    • Options
    • A. DRAMs must be periodically refreshed.
    • B. SRAMs can hold data via a static charge, even with power off.
    • C. The only difference is the terminal from which the data is removed?from the FET Drain or Source.
    • D. Dynamic RAMs are always active; static RAMs must reset between data read/write cycles.
    • Discuss
    • 6. 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.
    • Discuss
    • 7. 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
    • 8. Eight bits of digital data are normally referred to as a:

    • Options
    • A. group.
    • B. byte.
    • C. word.
    • D. cell.
    • Discuss
    • 9. 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
    • 10. 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


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