Basic structure of CPU

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Basic structure of CPU

CPU (Central processing unit)


A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.


*CPU – Heart of the Computer


*CPU Process:


 1.Fetch the Instruction


2.Interpret the Instruction


3.Fetch the Data


4.Process the Data


5.Write the data

 

Memory Units and Secondary Memory
Abacus, Napier’s Bones, Leibniz Calculator, Analytical Engine, Generation of Computers
Analog, Digital, Hybrid, Super, Mainframe, Mini, Micro Computers
Computer Networking- transmission media
Network Devices and Types of network- LAN, WAN, MAN, ISDN

 

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