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Home Digital Electronics Memory and Storage Comments

  • Question
  • In general, the ________ have the smallest bit size and the ________ have the largest.


  • Options
  • A. EEPROMs, Flash
  • B. SRAM, mask ROM
  • C. mask ROM, SRAM
  • D. DRAM, PROM

  • Correct Answer
  • EEPROMs, Flash 


  • Memory and Storage problems


    Search Results


    • 1. The main advantage of semiconductor RAM is its ability to:

    • Options
    • A. retain stored data when power is interrupted or turned off
    • B. be written to and read from rapidly
    • C. be randomly accessed
    • D. be sequentially accessed
    • Discuss
    • 2. Which of the following RAM timing parameters determine its operating speed?

    • Options
    • A. tACC
    • B. tAA and tACS
    • C. tCO and tOD
    • D. tRC and tWC
    • Discuss
    • 3. Describe the timing diagram of a write operation.

    • Options
    • A. First the data is set on the data bus and the address is set, then the write pulse stores the data.
    • B. First the address is set, then the data is set on the data bus, and finally the read pulse stores the data.
    • C. First the write pulse stores the data, then the address is set, and finally the data is set on the data bus.
    • D. First the data is set on the data bus, then the write pulse stores the data, and finally the address is set.
    • Discuss
    • 4. Microprocessors and memory ICs are generally designed to drive only a single TTL load. Therefore, if several inputs are being driven from the same bus, any memory IC must be ________.

    • Options
    • A. buffered
    • B. decoded
    • C. addressed
    • D. stored
    • Discuss
    • 5. ROMs retain data when the ________.

    • Options
    • A. power is off
    • B. power is on
    • C. system is down
    • D. all of the above
    • Discuss
    • 6. The ideal memory ________.

    • Options
    • A. has high storage capacity
    • B. is nonvolatile
    • C. has in-system read and write capacity
    • D. has all of the above characteristics
    • Discuss
    • 7. What is the significance of the inverted triangles on the outputs of the device in the given figure?


    • Options
    • A. They represent inverters and mean that the outputs are active-LOW.
    • B. They represent buffers and mean that the outputs can drive 40 TTL loads, instead of the normal 10.
    • C. It means that the outputs will be active only if a change has occurred at that memory location since the last read/write cycle.
    • D. The outputs are tristated.
    • Discuss
    • 8. Which of the following describes the action of storing a bit of data in a mask ROM?

    • Options
    • A. A 1 is stored in a bipolar cell by opening the base connection to the address line.
    • B. A 0 is stored in a bipolar cell by shorting the base connection to the address line.
    • C. A 1 is stored by connecting the gate of a MOS cell to the address line.
    • D. A 0 is stored by connecting the gate of a MOS cell to the address line.
    • Discuss
    • 9. What is the difference between static RAM and dynamic RAM?

    • Options
    • A. Static RAM must be refreshed, dynamic RAM does not.
    • B. There is no difference.
    • C. Dynamic RAM must be refreshed, static RAM does not.
    • Discuss
    • 10. An 8-bit address code can select ________.

    • Options
    • A. 8 locations in memory
    • B. 256 locations in memory
    • C. 65,536 locations in memory
    • D. 131,072 locations in memory
    • Discuss


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