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There are 4 Questions Please Answer:(Why we used a web camera?write short notes on CPU and ALU?what is the Processing Unit?Define The following the monitor and the Printer?

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2.An arithmetic logic unit (ALU) is a digital CIRCUIT used to PERFORM arithmetic and logic operations. It represents the fundamental building block of the CENTRAL processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs. In addition to ALUs, modern CPUs contain a control unit .

3. central processing unit, also called a central processor or main processor, is the electronic circuitry within a computer that executes instructions that make up a computer program. The CPU performs BASIC arithmetic, logic, controlling, and input/output operations specified by the instructions in the program.



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