Computer Electronic device Accepts data - input Processes it according to a given set of instructions Produces results - output input output

The set of instructions that the computer follows Computer Program The set of instructions that the computer follows

Computer System Hardware - the physical equipment used to process a data Software - computer programs

Hardware Input/Output Devices Main Memory/Secondary Storage CPU

Input/Output Devices Input devices - keyboard, mouse. Enter data and programs into the computer Output devices - printer, monitor. Display the results processed by the computer

Memory Main Memory – RAM Secondary Storage – 3 ½ floppy disk, CD-ROM, hard disk.