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The Central Processing Unit (CPU) consists of
- a)ALU and Control unit only
- b)ALU, Control unit and Registers only
- c)ALU, Control unit and System bus only
- d)ALU, Control unit, Registers, and Internal bus
Correct answer is option 'D'. Can you explain this answer?
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The Central Processing Unit (CPU) consists ofa)ALU and Control unit on...
There are three basic units of a computer system:
- Input Unit: Keyboard, Mouse, Scanner, Light pen, Trackball etc.
- Central Processing Unit
- Output Unit: Monitor and Printer
Central Processing Unit (CPU): It is the most important unit, where all the processing jobs take place. CPU is the control centre of the computer and hence it is said to be the brain of the computer. CPU has three main components:
- Arithmetic Logic Unit (ALU): It performs all the arithmetic operations like addition (+), multiplication (*), subtraction (-), division (/) on the numerical data directed by the control unit. All the logical operations, like less than (<), greater than (>), equal to (=), not equal to (≠) etc. are also carried out by ALU.
- Control Unit (CU): It controls and coordinates all the operations taking place in the system. It controls the flow of data and information from one unit to the other.
- Registers/Memory Unit (MU): To execute a program, data and instructions need to be stored temporarily. This storage is done in the MU. The data and instructions are retrieved from MU by Control Unit for supplying to ALU as when required by the program.
- Internal bus: To transfer the data
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The Central Processing Unit (CPU) consists ofa)ALU and Control unit on...
Components of the Central Processing Unit (CPU)
The Central Processing Unit (CPU) is the brain of a computer system, responsible for executing instructions and performing calculations. It consists of several key components working together to carry out these tasks efficiently.
ALU (Arithmetic Logic Unit)
- The ALU is responsible for performing arithmetic and logical operations, such as addition, subtraction, AND, OR, and NOT.
- It is a crucial component of the CPU as it executes the actual computations required by programs.
Control Unit
- The Control Unit manages the execution of instructions, fetching them from memory, decoding them, and coordinating the actions of the other CPU components.
- It ensures that instructions are carried out in the correct sequence and at the right time.
Registers
- Registers are small, high-speed storage locations within the CPU used to store data temporarily during processing.
- They hold data, addresses, and intermediate results, aiding in the execution of instructions.
Internal Bus
- The Internal Bus is a communication pathway that connects the different components of the CPU, allowing them to exchange data and instructions.
- It facilitates the flow of information between the ALU, Control Unit, and Registers.
Conclusion
In conclusion, the Central Processing Unit (CPU) consists of the ALU, Control Unit, Registers, and Internal Bus. Together, these components work in harmony to execute instructions, perform calculations, and manage data flow within the computer system. Each component plays a critical role in the overall functioning of the CPU, enabling it to carry out complex tasks efficiently.
The Central Processing Unit (CPU) is the brain of a computer system, responsible for executing instructions and performing calculations. It consists of several key components working together to carry out these tasks efficiently.
ALU (Arithmetic Logic Unit)
- The ALU is responsible for performing arithmetic and logical operations, such as addition, subtraction, AND, OR, and NOT.
- It is a crucial component of the CPU as it executes the actual computations required by programs.
Control Unit
- The Control Unit manages the execution of instructions, fetching them from memory, decoding them, and coordinating the actions of the other CPU components.
- It ensures that instructions are carried out in the correct sequence and at the right time.
Registers
- Registers are small, high-speed storage locations within the CPU used to store data temporarily during processing.
- They hold data, addresses, and intermediate results, aiding in the execution of instructions.
Internal Bus
- The Internal Bus is a communication pathway that connects the different components of the CPU, allowing them to exchange data and instructions.
- It facilitates the flow of information between the ALU, Control Unit, and Registers.
Conclusion
In conclusion, the Central Processing Unit (CPU) consists of the ALU, Control Unit, Registers, and Internal Bus. Together, these components work in harmony to execute instructions, perform calculations, and manage data flow within the computer system. Each component plays a critical role in the overall functioning of the CPU, enabling it to carry out complex tasks efficiently.
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The Central Processing Unit (CPU) consists ofa)ALU and Control unit onlyb)ALU, Control unit and Registers onlyc)ALU, Control unit and System bus onlyd)ALU, Control unit, Registers, and Internal busCorrect answer is option 'D'. Can you explain this answer?
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