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The internal structure of the computer contains four main structural components. They are,

Central processing unit (CPU): Controls the operation of the computer and performs its data processing functions; often simply referred to as processor.

Main memory: Stores data.

I/O: Moves data between the computer and its external environment.

System interconnection: Some mechanism that provides for communication among CPU, main memory, and I/O.

And the major structural components of CPU are,

Control unit: Controls the operation of the CPU and hence the computer.

Arithmetic and logic unit (ALU): Performs the computer’s data processing functions.

Registers: Provides storage internal to the CPU.

CPU interconnection: Some mechanism that provides for communication among the control unit, ALU, and registers.

 

 

Answer
The top level structure of computer is cpu,momory,input and output components.
Answer

Consists of FOUR components:

1. CPU

2. Memory

3. Input/Output devices

4. System Interconnections

 

 

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