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Home Digital Electronics Memory and Storage Comments

  • Question
  • A device that needs constant refreshing to avoid losing data is a(n) ________.


  • Options
  • A. SRAM
  • B. DRAM
  • C. ROM
  • D. EPROM

  • Correct Answer
  • DRAM 


  • Memory and Storage problems


    Search Results


    • 1. A ________ is user-programmable memory that cannot be erased and reprogrammed.

    • Options
    • A. ROM
    • B. EPROM
    • C. EEPROM
    • D. PROM
    • Discuss
    • 2. The basic purpose of tristate or open-collector outputs on a memory is to ________.

    • Options
    • A. isolate devices connected to a common bus
    • B. simplify the circuitry
    • C. provide faster transitions of the output
    • D. increase the output current
    • Discuss
    • 3. 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
    • 4. Floppy disks are organized into concentric rings called ________.

    • Options
    • A. tracks
    • B. arrays
    • C. sectors
    • D. cells
    • Discuss
    • 5. 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
    • 6. The checkerboard pattern test is used to test ________.

    • Options
    • A. ROM
    • B. EEPROM
    • C. FPLA
    • D. RAM
    • Discuss
    • 7. A type of memory that is accessed serially (one location after the other) is a ________.

    • Options
    • A. ROM
    • B. read/write memory
    • C. shift register
    • D. PLD
    • Discuss
    • 8. A DIMM ________.

    • Options
    • A. is available in 30-pin or 72-pin packages
    • B. has contact pins on only one side of the module
    • C. has less memory than the newer SIMM modules
    • D. has contact pins on both sides of the module for larger data paths
    • Discuss
    • 9. The 2147 4K × 1 static RAM contains 4096 storage locations storing one bit each. ________ 2147 RAM memory chip(s) is/are needed to configure an 8K × 8 memory.

    • Options
    • A. One
    • B. Four
    • C. Eight
    • D. Sixteen
    • Discuss
    • 10. The address space of a RAM memory can be expanded using a decoder and additional memory ICs. The output of the decoder should be connected to which input line of the memory?

    • Options
    • A. The most significant address inputs
    • B. The most significant data inputs
    • C. The read/write line
    • D. The chip enable
    • Discuss


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