Computer Microprocessor and Assembly Language MCQs with answers Page - 4

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Q. A computer which has the microprocessor as ____________ is called as a microcomputer

  • (A) CPU
  • (B) ALU
  • (C) RU
  • (D) None of these

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Q. A fourth bit called the ________

  • (A) Direct bit
  • (B) Cache bit
  • (C) Valid bit
  • (D) All of these

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Q. A nibble can be represented in the from of

  • (A) Octal digit
  • (B) Decimal
  • (C) Hexadecimal
  • (D) None of these

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Q. A set of register which contain are

  • (A) data
  • (B) memory addresses
  • (C) result
  • (D) all of these

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Q. Accumulator based microprocessor example are

  • (A) Intel 8085
  • (B) Motorola 6809
  • (C) A and B
  • (D) None of these

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Q. AD stand for

  • (A) Address data
  • (B) Address delete
  • (C) Address date
  • (D) Address deal

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Q. ADC stands for

  • (A) Analogue to analogue converters
  • (B) Analogue to digital converters
  • (C) Digital to digital converters
  • (D) Digital to analogue converters

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Q. ADSTB stands for

  • (A) Access stroe
  • (B) Access strobe
  • (C) Address store
  • (D) Address strobe

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Q. AEN stands for

  • (A) Address enable
  • (B) Address equivalent
  • (C) Acknowledgment enable
  • (D) Acknowledgment equivalent

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Q. for i/o of 8255,if -----, the word is taken as a bit set/rest word

  • (A) D7=1
  • (B) D7=0
  • (C) D0=1
  • (D) D0=0

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