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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