Practice test

Introduction to computer - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    ________is the oldest type of Central Processing Unit (CPU).
    1. Quad core
    2. Single core
    3. Triple core
    4. Dual core
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  2. Question 2

    Which statement is incorrect about CPU?
    1. ALU converts input into signals
    2. ALU is the mathematical brain
    3. Control Unit directs operation sequences
    4. Control Unit controls instruction execution
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  3. Question 3

    __________is a high-speed device used in CPU for temporary data storage.
    1. ALU
    2. Control Unit
    3. Auxiliary Memory
    4. Registers
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  4. Question 4

    The speed of a CPU can be measured in ____________.
    1. megahertz (MHz)
    2. bits per second (Bps)
    3. horsepower
    4. lux
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  5. Question 5

    __________unit performs arithmetic and logical operations.
    1. Storage unit
    2. Input unit
    3. Output unit
    4. ALU
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  6. Question 6

    The most important part of the computer.
    1. CPU
    2. Disk
    3. Keyboard
    4. Printer
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  7. Question 7

    Which of the following units in the computer is responsible for data processing and is also known as the electronic brain of the computer?
    1. Central Processing Unit (CPU)
    2. Keyboard
    3. Hard Disk
    4. RAM
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  8. Question 8

    Which of the following statements is not correct?
    1. E-mail refers to Electronic mail.
    2. WWW refers to World Wide Web.
    3. CPU refers to Control Processing Unit.
    4. ALU refers to Arithmetic Logic Unit.
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  9. Question 9

    In the context of computer, ALU stands for
    1. Algebraic Logic Unit
    2. Arithmetic Logic Unit
    3. Arithmetic Local Unit
    4. Algebraic Local Unit
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  10. Question 10

    ___________ unit is the part of the CPU that controls or directs the actions of the processor.
    1. Control
    2. Memory
    3. Arithmetic logic
    4. Data
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  11. Question 11

    Which of the following is the function of control unit in CPU?
    1. Performing logical work
    2. Storing programs
    3. Decode program instruction
    4. None of the above
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  12. Question 12

    The process of writing new data in the register
    1. Erases the first contents of the register
    2. Does not destroy the existing content
    3. Possible only if the register is operator
    4. None of the above
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  13. Question 13

    The speed of the microprocessor is known as ______________.
    1. mega speed
    2. clock speed
    3. rotation
    4. bit speed
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  14. Question 14

    Critical system components such as CPU and RAM modules are directly linked to ___________.
    1. magnetic tape
    2. motherboard
    3. optical disc
    4. flash memory
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  15. Question 15

    In computer, which of the following unit is responsible for processing and also known as brain of computer?
    1. CPU
    2. Hard disk
    3. Keyboard
    4. RAM
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  16. Question 16

    What is the purpose of the Arithmetic Logic Unit (ALU) in a Central Processing Unit (CPU)?
    1. It executes program instructions by performing calculations and logical comparisons
    2. It manages the data flow between the CPU fan
    3. It controls the speed of the CPU fan
    4. It connects the CPU to peripheral devices
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  17. Question 17

    Pick the odd one out in the Central Processing Unit (CPU) of a computer.
    1. ALU and control unit both
    2. ALU (Arithmetic Logic Unit)
    3. Control unit
    4. Output unit
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  18. Question 18

    The ________ unit is that part of the CPU which controls or directs the operations of the processor.
    1. memory
    2. arithmetic logic
    3. control
    4. data
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  19. Question 19

    High power microprocessor is
    1. Pentium, Pentium pro
    2. Pentium II
    3. Pentium II and III
    4. All of the above
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  20. Question 20

    To listen to the songs from your computer, you need to install a ______ on your computer.
    1. sound card
    2. memory card
    3. PC card
    4. network interface card
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