The Control Unit (CU) is an essential component of the computer’s Central Processing Unit (CPU). It acts as the computer. It can say that Control Unit is a “brain within the brain.” Control Unit is responsible to direct the operation of the processor. The CU manages and coordinates all activities inside the computer by sending control signals to other parts of the system. Control Unit does not process or store any data but ensures that instructions are executed correctly by controlling the flow of data between the CPU, memory and input/output devices.
Below are 15 multiple-choice questions (MCQs) designed to test your knowledge of the Control Unit.
Let’s start the multiple-choice questions (MCQs) on Control Unit.
01) What does CU stand for in computers from the following?
A) Central Unit
B) Control Unit
C) Compute Unit
D) Common Unit
Correct answer is option “B”
02) Which of the following unit is responsible for controlling the entire operation of the computer?
A) RAM
B) Memory Unit
C) Storage Unit
D) Control Unit
Correct answer is option “D”
03) The Control Unit is part of which of the main component of a computer’s unit?
A) Input Unit
B) Output Unit
C) Storage Device
D) CPU
Correct answer is option “D”
04) Which of the following tasks is NOT performed by the Control Unit?
A) Directing data flow
B) Controlling input/output operations
C) Performing calculations
D) Managing instruction execution
Correct answer is option “C”
05) The Control Unit sends control signals to which of the following units to perform task done?
A) Only the memory
B) Only the ALU
C) Only the output devices
D) ALU, Memory, and Input/Output devices
Correct answer is option “D”
06) Which type of memory is primarily coordinated by the Control Unit for data storage and retrieval?
A) RAM
B) ROM
C) Cache Memory
D) All of the above
Correct answer is option “D”
07) What is the main function of the Control Unit from the following?
A) Perform arithmetic operations
B) Store data permanently
C) Direct the operations of the processor
D) Display output
Correct answer is option “C”
08) The Control Unit works closely with which other CPU component?
A) Monitor
B) Keyboard
C) ALU
D) Printer
Correct answer is option “C”
09) Which of the following is the best option to describe the Control Unit’s function?
A) Input handling
B) Performing data calculations
C) Printing results
D) Managing and controlling execution of instructions
Correct answer is option “D”
10) Which of the following is NOT a characteristic of the Control Unit?
A) To executes instructions directly
B) To fetches instructions
C) To decodes instructions
D) To issues control signals
Correct answer is option “A”
11) How does the Control Unit interact with memory unit?
A) It stores programs permanently
B) It controls the reading and writing of data
C) It creates data backups
D) It deletes unnecessary files
Correct answer is option “B”
12) The Control Unit operates primarily through which of the following option?
A) Manual commands
B) Wireless communication
C) Control signals
D) Direct processing
Correct answer is option “C”
13) Control Units are mainly designed to which of the following option?
A) To enhance the speed of printers
B) To increase monitor resolution
C) To format hard disks
D) To fetch, decode, and direct the execution of instructions
Correct answer is option “D”
14) Which of the following signal is NOT issued by the Control Unit?
A) Start signal
B) Read signal
C) Arithmetic calculation signal
D) Write signal
Correct answer is option “C”
15) In a computer, instructions are fetched from which of the following unit?
A) CPU Registers
B) Storage Devices
C) Memory Unit
D) Monitor
Correct answer is option “C”
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All the best for a bright future.