.Which component of a computer executes the program and how?¿
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CPU of a computer system executes the program.
The program is executed in following manner :-
- When a program reaches into memory, the control unit (CU) of CPU reads the program instruction.
- The CU then determines the type of instruction i.e., whether it is an arithmetic (calculations) or logical (comparisons) or l/O (reading or writing) type of instruction.
- For arithmetic or logical type of instructios, CU directs the ALU (Arithmetic and Logic unit) to carry out the instructions.
- For input type of instruction, CU directs the Input unit to carry out the instruction and for Output type of instruction, it directs the output unit to carry out the instruction.
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process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
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process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
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