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Home Digital Electronics Memory and Storage Comments

  • Question
  • How can UV erasable PROMs be recognized?


  • Options
  • A. There is a small window on the chip.
  • B. They will have a small violet dot next to the #1 pin.
  • C. Their part number always starts with a "U", such as in U12.
  • D. They are not readily identifiable, since they must always be kept under a small cover.

  • Correct Answer
  • There is a small window on the chip. 


  • Memory and Storage problems


    Search Results


    • 1. One of the most important specifications on magnetic media is the ________.

    • Options
    • A. rotation speed
    • B. tracks per inch
    • C. data transfer rate
    • D. polarity reversal rate
    • Discuss
    • 2. The bit capacity of a memory that has 2048 addresses and can store 8 bits at each address is ________.

    • Options
    • A. 4096
    • B. 8129
    • C. 16358
    • D. 32768
    • Discuss
    • 3. Which is not a removable drive?

    • Options
    • A. Zip
    • B. Jaz
    • C. Hard
    • D. SuperDisk
    • Discuss
    • 4. How many 2K × 8 ROM chips would be required to build a 16K × 8 memory system?

    • Options
    • A. 2
    • B. 4
    • C. 8
    • D. 16
    • Discuss
    • 5. Which of the following memories uses a MOS capacitor as its memory cell?

    • Options
    • A. SRAM
    • B. DRAM
    • C. ROM
    • D. FIFO
    • Discuss
    • 6. What is the maximum time required before a dynamic RAM must be refreshed?

    • Options
    • A. 2 ms
    • B. 4 ms
    • C. 8 ms
    • D. 10 ms
    • Discuss
    • 7. Dynamic memory cells store a data bit in a ________.

    • Options
    • A. diode
    • B. resistor
    • C. capacitor
    • D. flip-flop
    • Discuss
    • 8. What is a multitap digital delay line?

    • Options
    • A. a series of inverter gates with RC circuits between each one
    • B. a series of inverter gates with RL circuits between each one
    • C. a series of NAND gates with RC circuits between each one
    • D. a series of NAND gates with RL circuits between each one
    • Discuss
    • 9. How many 8 k × 1 RAMs are required to achieve a memory with a word capacity of 8 k and a word length of eight bits?

    • Options
    • A. Eight
    • B. Four
    • C. Two
    • D. One
    • Discuss
    • 10. Which is not a hard disk performance parameter?

    • Options
    • A. Seek time
    • B. Break time
    • C. Latency period
    • D. Access time
    • Discuss


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