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MCQs

Total Questions : 457 | Page 42 of 46 pages
Question 411. The 2764 is 65,536-bit EPROM organized as 8,192 words of 8 bits each. How many address lines does it have?
  1.    12
  2.    14
  3.    13
  4.    8
  5.    None of the above
 Discuss Question
Answer: Option C. -> 13
Question 412. A half-adder adds _____ bits
  1.    16
  2.    8
  3.    10
  4.    2
  5.    None of the above
 Discuss Question
Answer: Option D. -> 2
Question 413. Conversion of decimal number 9910 to it's binary number equivalent is
  1.    11000112
  2.    1000112
  3.    11100012
  4.    111 10002
  5.    None of the above
 Discuss Question
Answer: Option A. -> 11000112
Question 414. A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.
  1.    hexa, sign
  2.    sign, hexa
  3.    positive, negative
  4.    negative, positive
  5.    None of the above
 Discuss Question
Answer: Option C. -> positive, negative
Question 415. The logic 1 in positive logic system is represented by:
  1.    zero voltage
  2.    lower voltage level
  3.    higher voltage level
  4.    negative voltage
  5.    None of the above
 Discuss Question
Answer: Option C. -> higher voltage level
Question 416. The number of two-input NAND gates required to produce the two-input OR function is
  1.    1
  2.    2
  3.    3
  4.    4
  5.    None of the above
 Discuss Question
Answer: Option C. -> 3
Question 417. The _____ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.
  1.    EPROM
  2.    ROM
  3.    PROM
  4.    RAM
  5.    None of the above
 Discuss Question
Answer: Option A. -> EPROM
Question 418. Convert the 1000 0000 0000 1111 signed binary number to decimal number.
  1.    15
  2.    -15
  3.    -30
  4.    30
  5.    None of the above
 Discuss Question
Answer: Option B. -> -15
Question 419. The clock signals are used in sequential logic circuits
  1.    to tell the time of the day
  2.    to tell how much time has elapsed since the system was turned on
  3.    to carry serial data signals
  4.    to synchronize events in various parts of a system
  5.    None of the above
 Discuss Question
Answer: Option D. -> to synchronize events in various parts of a system
Question 420. The _____ is a sequence of instructions that tells the computer how to process the data.
  1.    data
  2.    program
  3.    controls
  4.    instruction
  5.    None of the above
 Discuss Question
Answer: Option B. -> program

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