3. OPERATIONS PERFORMED BY CPU Input Operation Is one that signals an input device to read data; it then automatically transmits that data to the central processing unit.
4. OPERATIONS PERFORMED BY CPU 2. Processing Operations Data transfer , arithmetic, and logic operations are processing functions that operate on the input data.
5. OPERATIONS PERFORMED BY CPU 3. Output Operation It causes information to be transmitted from the output area , provided for each program, to an output device where it is written out or recorded.
