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MCQs

Total Questions : 215 | Page 11 of 22 pages
Question 101. . Which of the following RAM timing parameters determine its operating speed?
  1.    tACC
  2.    tAA and tACS
  3.    tCO and tOD
  4.    tRC and tWC
 Discuss Question
Answer: Option D. -> tRC and tWC
Question 102. . What is the maximum time required before a dynamic RAM must be refreshed?
  1.    2 ms
  2.    4 ms
  3.    8 ms
  4.    10 ms
 Discuss Question
Answer: Option A. -> 2 ms
Question 103. . The reason the data outputs of most ROM ICs are tristate outputs is to:
  1.    allow for three separate data input lines.
  2.    allow the bidirectional flow of data between the bus lines and the ROM registers.
  3.    permit the connection of many ROM chips to a common data bus.
  4.    isolate the registers from the data bus during read operations.
 Discuss Question
Answer: Option C. -> permit the connection of many ROM chips to a common data bus.
Question 104. . How many 2K × 8 ROM chips would be required to build a 16K × 8 memory system?
  1.    2
  2.    4
  3.    8
  4.    16
 Discuss Question
Answer: Option C. -> 8
Question 105. . Which of the following best describes random-access memory (RAM)?
  1.    a type of memory in which access time depends on memory location
  2.    a type of memory that can be written to only once but can be read from an infinite number of times
  3.    a type of memory in which access time is the same for each memory location
  4.    mass memory
 Discuss Question
Answer: Option C. -> a type of memory in which access time is the same for each memory location
Question 106. . Which is not a removable drive?
  1.    Zip
  2.    Jaz
  3.    Hard
  4.    SuperDisk
 Discuss Question
Answer: Option C. -> Hard
Question 107. . Which of the following best describes EPROMs?
  1.    EPROMs can be programmed only once.
  2.    EPROMs can be erased by UV.
  3.    EPROMs can be erased by shorting all inputs to the ground.
  4.    All of the above.
 Discuss Question
Answer: Option B. -> EPROMs can be erased by UV.
Question 108. . Which of the following best describes static memory devices?
  1.    memory devices that are magnetic in nature and do not require constant refreshing
  2.    memory devices that are magnetic in nature and require constant refreshing
  3.    semiconductor memory devices in which stored data will not be retained with the power applied unless constantly refreshed
  4.    semiconductor memory devices in which stored data is retained as long as power is applied
 Discuss Question
Answer: Option D. -> semiconductor memory devices in which stored data is retained as long as power is applied
Question 109. . CCD stands for ________.
  1.    capacitor charging device
  2.    capacitor-capacitor drain
  3.    charged-capacitor device
  4.    charge-coupled device
 Discuss Question
Answer: Option D. -> charge-coupled device
Question 110. . How many storage locations are available when a memory device has 12 address lines?
  1.    144
  2.    512
  3.    2048
  4.    4096
 Discuss Question
Answer: Option D. -> 4096

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