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Home Digital Electronics Digital Concepts See What Others Are Saying!
  • Question
  • Memory devices that use electronic latching circuits are called ________.


  • Options
  • A. RAM
  • B. flip-flops
  • C. magnetic tape
  • D. DRAM

  • Correct Answer
  • flip-flops 


  • More questions

    • 1. Cascade chains are closely associated with ________.

    • Options
    • A. CLBs
    • B. SOP functions
    • C. logic expansion
    • D. all of the above
    • Discuss
    • 2. A ________ is user-programmable memory that cannot be erased and reprogrammed.

    • Options
    • A. ROM
    • B. EPROM
    • C. EEPROM
    • D. PROM
    • Discuss
    • 3. When performing subtraction by addition in the 2's-complement system:

    • Options
    • A. the minuend and the subtrahend are both changed to the 2's-complement.
    • B. the minuend is changed to 2's-complement and the subtrahend is left in its original form.
    • C. the minuend is left in its original form and the subtrahend is changed to its 2's-complement.
    • D. the minuend and subtrahend are both left in their original form.
    • Discuss
    • 4. The mask ROM is ________.

    • Options
    • A. MOS technology
    • B. diode technology
    • C. resistor-diode technology
    • D. DROM technology
    • Discuss
    • 5. A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

    • Options
    • A. The dim indication on the logic probe indicates that the supply voltage is probably low.
    • B. The output of the gate appears to be open.
    • C. The dim indication is the result of a bad ground connection on the logic probe.
    • D. The gate is a tristate device.
    • Discuss
    • 6. The range of positive numbers when using an eight-bit two's-complement system is:

    • Options
    • A. 0 to 64
    • B. 0 to 100
    • C. 0 to 127
    • D. 0 to 256
    • Discuss
    • 7. With a 200 kHz clock frequency, eight bits can be serially entered into a shift register in ________.

    • Options
    • A. 4 ?s
    • B. 40 ?s
    • C. 400 ?s
    • D. 40 ms
    • Discuss
    • 8. What is meant by parallel load of a shift register?

    • Options
    • A. All FFs are preset with data.
    • B. Each FF is loaded with data, one at a time.
    • Discuss
    • 9. 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
    • 10. Dynamic memory cells store a data bit in a ________.

    • Options
    • A. diode
    • B. resistor
    • C. capacitor
    • D. flip-flop
    • Discuss


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