: The computer processes the data through the CPU by bringing the data received through input into memory. The internal process of data processing in a computer is quite complex. The following tasks are performed in stages to process the data. 1. Through the input, the program and data are brought to the main memory under the control of the CPU. 2. After the data is registered, the control unit interprets or decoups the instruction and instructs the mathematical / logic unit to do the necessary work and provides the data. 3. The mathematical / logical part produces the results by performing the necessary mathematical and logical operations on the data. 4. Stores the results of mathematical and logical operations in the accumulator or main memory. To complete each instruction or instruction, the computer has to complete the instruction cycle or face cycle and the execution cycle or execution cycle in stages and this process continues till the end of the program. So the computer executes the program one by one following the instructions. However, as the speed of computer work is incredibly fast, we see so many cycles or steps being solved in the blink of an eye.