Fundamentals Of Digital Electronics

15 Questions  I  By Alexeialeesh
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  • 1. 
    A Register is a group of ---------
    • A. 

      OR gates

    • B. 

      OR & AND gate

    • C. 

      Flip-flops

    • D. 

      None of these


  • 2. 
    Each Flip-flop stores ---------- bits
    • A. 

      1 bit

    • B. 

      8 bit

    • C. 

      16 bit

    • D. 

      2 bit


  • 3. 
    A NOR gate is ON only when all its inputs are
    • A. 

      ON

    • B. 

      Positive

    • C. 

      High

    • D. 

      OFF


  • 4. 
    The First Microprocessor was__________
    • A. 

      Intel 4004

    • B. 

      8080

    • C. 

      8085

    • D. 

      4008


  • 5. 
    8088 was introduced in __________
    • A. 

      1971

    • B. 

      1979

    • C. 

      1972

    • D. 

      1978


  • 6. 
    Which is a 8 bit Microprocessor __________
    • A. 

      Intel 4040

    • B. 

      Pentium – I

    • C. 

      8088

    • D. 

      Intel 8080


  • 7. 
    Pentium-I, Pentium-II, Pentium-III and Pentium-IV are recently introduced microprocessor by__________
    • A. 

      Motorola

    • B. 

      Intel

    • C. 

      Stephen Mors

    • D. 

      None of these


  • 8. 
    Status register is also called as ___________
    • A. 

      Accumulator

    • B. 

      Stack

    • C. 

      Counter

    • D. 

      Flags


  • 9. 
    The 8085 is based in a _____ pin DIP
    • A. 

      40

    • B. 

      45

    • C. 

      35

    • D. 

      20


  • 10. 
    The number system that we use in our day to day life is called the Number System__________
    • A. 

      Octal

    • B. 

      Binary

    • C. 

      Hexadecimal

    • D. 

      Decimal


  • 11. 
    The three logical operations, which are said to be logically Complete, as any Boolean function may be realized using these Three operations are:
    • A. 

      AND, OR and NOT

    • B. 

      AND, OR and XOR

    • C. 

      AND, OR and NAND

    • D. 

      XOR, NOR and NAND


  • 12. 
    Pictorial representation of Boolean algebra is known as
    • A. 

      Venn Diagram

    • B. 

      Flow Chart

    • C. 

      Data Flow Diagram

    • D. 

      Truth Table


  • 13. 
    Device or Circuit whose output will remain unchanged once set
    • A. 

      Flip-Flop

    • B. 

      Gate

    • C. 

      Boolean Algebra


  • 14. 
    ……….Are used for converting one type of number system in to          other form
    • A. 

      Encoder

    • B. 

      Logic gate

    • C. 

      Half adder

    • D. 

      FA


  • 15. 
    In a 2nd complement a number which is subtracted from other      number is known as………..
    • A. 

      Carry

    • B. 

      Subtrahend

    • C. 

      Minuend

    • D. 

      None of these


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