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Home ‣ Digital Electronics ‣ Memory and Storage See What Others Are Saying!
  • Question

  • A CD-R disk is created by applying heat to special chemicals on the disk and these chemicals reflect less light than the areas that are not burned, thus creating the same effect as a pit does on a regular CD.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. The concurrent section of the hardware description is where the ________ are interconnected.

    • Options
    • A. functions
    • B. components
    • C. circuits
    • D. macrofunctions
      • Discuss
    • 2. Output 6 of a 74138 octal decoder is selected when it is enabled by a data input of:

      A0 = 1
      A1 = 1
      A2 = 0


    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Assume a ROM to be tested is compared with a known good ROM. If the checksums differ, the ROM is ________.

    • Options
    • A. very likely to be good
    • B. definitely good
    • C. very likely to be bad
    • D. definitely bad
      • Discuss
    • 4. The most common TTL series ICs are:

    • Options
    • A. E-MOSFET
    • B. 7400
    • C. quad
    • D. AC00
      • Discuss
    • 5. Microcontrollers often have:

    • Options
    • A. CPUs
    • B. RAM
    • C. ROM
    • D. all of the above
      • Discuss
    • 6. Before an SOP implementation, the expression would require a total of how many gates?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 5
      • Discuss
    • 7. The outputs of a 7485 four-bit magnitude comparator when the inputs are A = 0110 and B = 1010 are:

      A < B is 1
      A = B is 0
      A > B is 1


    • Options
    • A. True
    • B. False
      • Discuss
    • 8. How many outputs are on a BCD decoder?

    • Options
    • A. 4
    • B. 16
    • C. 8
    • D. 10
      • Discuss
    • 9. The GAL16V8 has eight dedicated input pins.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The Boolean expression AB + CD is an example of ________.

    • Options
    • A. PAL
    • B. GAL
    • C. SOP
    • D. POS
      • Discuss

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