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21. Processors contain a control unit and a/an ____.
A. Control unit
B. Primary storage unit
C. Input Unit
D. Arithmetic logic unit
ANSWER:D
SOLUTION:Processors contain a control unit and a/an arithmetic logic unit
22. Which of the following executes the computer commands?
A. Arithmetic unit
B. Logic unit
C. Both A & B
D. Control unit
ANSWER: C
SOLUTION:Both A & B
23. Internal memory in a CPU is nothing but ____.
A. A set of register
B. A set of ALU
C. Microprocessor
D. Bus
ANSWER:A
SOLUTION:Internal memory in a CPU is nothing but a set of register.
24. Which among the following is a small set of data holding place that is a part of the computer processor and may hold an instruction, a storage address, or any kind of data?
A. Register
B. WAN
C. BUS
D. Address
ANSWER:A
SOLUTION:A processor register (CPU register) is one of a small set of data holding places that are part of the computer processor. A register may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters).
25. The portion of the CPU that coordinates the activities of all the other computer ____.
A. Motherboard
B. Coordination Board
C. Control Unit
D. Arithmetic logic unit
ANSWER: C
SOLUTION: The control unit (CU) is the part of the CPU that coordinates the activities of all other computer components.
26. Which of among the following is an important circuitry in a computer system that directs the operation of the processor?
A. Memory
B. Address
C. Accumulator
D. Control unit
ANSWER: D
SOLUTION:The Control Unit (CU) is the digital circuitry contained within the processor that coordinates the sequence of data movements into, out of, and between a processor’s many sub-units.
27. The control unit controls other units by generating ____.
A. Control signal
B. Timing signal
C. Transfer signal
D. Command signal
ANSWER: B
SOLUTION: The control unit controls other units by generating timing signals./Logic
28. Control unit of a digital computer is often called the ____.
A. Clock
B. Nerve Centre
C. Both A & B
D. IC
ANSWER: B
SOLUTION:Control Unit of a digital computer is often called the Nerve centre.
29. Memory unit the communicates directly with the CPU is called ____.
A. Main Memory
B. Secondary Memory
C. Auxiliary Memory
D. Register
ANSWER: A
SOLUTION:he memory unit that communicates directly with the CPU is called the primary memory. It is also known as the main memory.
30. CPU retrieves its data and instructions from ____.
A. Secondary Memory
B. Auxiliary Memory
C. Main Memory
D. All of these
ANSWER:C
SOLUTION:The CPU fetches the instructions one at a time from the main memory into the registers.