Introduction of Arithmetic Operation MCQ

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• The flag bits in an ALU is defined as ___________
  ক

  The total number of registers

  খ

  The status bit conditions

  গ

  The total number of control lines

  ঘ

  All of the Mentioned
• If the two numbers include a sign bit in the highest order position, the bit conditions of interest are the sign of the result, a zero indication and __________
  ক

  An underflow condition

  খ

  A neutral condition

  গ

  An overflow condition

  ঘ

  One indication
• If the two numbers are unsigned, the bit conditions of interest are the ______ carry and a possible _____ result.
  ক

  Input, zero

  খ

  Output, one

  গ

  Input, one

  ঘ

  Output, zero
• The design of an ALU is based on __________
  ক

  Sequential logic

  খ

  Combinational logic

  গ

  Multiplexing

  ঘ

  De-Multiplexing
• All logic operations can be obtained by means of __________
  ক

  AND and NAND operations

  খ

  OR and NOR operations

  গ

  OR and NOT operations

  ঘ

  NAND and NOR operations
• In a sequential circuit, the output at any time depends only on the input values at that time.
  ক

  Past output values

  খ

  Intermediate values

  গ

  Both past output and present input

  ঘ

  Present input values
• In a combinational circuit, the output at any time depends only on the _______ at that time.
  ক

  Voltage

  খ

  Intermediate values

  গ

  Input values

  ঘ

  Clock pulses
• A digital system consists of _____ types of circuits.
  ক

  2

  খ

  3

  গ

  4

  ঘ

  5
• The basic building blocks of the arithmetic unit in digital computers are __________
  ক

  Subtractors

  খ

  Adders

  গ

  Multiplexer

  ঘ

  Comparator