1. the central processing unit of pra (Central Processing Unit = CUP) in comparison to your brain.Computer because it serves a batch processing, calculations, and we sang into order.2. the unit input (INput Unit) is a device that receives and sends data into the system.Such as computer keyboard (Keyboard), and the mouse (the Mouse), etc.3. display unit (Output Unit) serve to display results from processing.By example.-Screen shots-Printer-Fax.
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