In order to carry out the operations mentioned in the previous section the computer allocates the task between its various functional units. It takes care of step by step processing of all operations inside the computer. Controlling of all operations like input, processing and output are performed by control unit. Control: The manner how instructions are executed and the above operations are performed. Again the output is also stored inside the computer for further processing.ĥ. Similarly the output produced by the computer after processing must also be kept somewhere inside the computer before being given to you in human readable form. Output: This is the process of producing results from the data for getting useful information. It is then sent back to the storage unit.Ĥ. The Central Processing Unit (CPU) takes data and instructions from the storage unit and makes all sorts of calculations based on the instructions given and the type of data provided. Processing: The task of performing operations like arithmetic and logical operations is called processing. Intermediate results of processing are also stored here.ģ.All data and instructions are stored here before and after processing.
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