Input-Process-Output Model

Input-Process-Output Model

1. Input

   • Mouse - A small hand held device used to mover a cursor on a computer screen
   • Keyboard-A panel of keys that operates a computer.
   • Microphone- An instrument for converting sound waves into electrical energy.
   • Scanner- A device that scans documents and converts them into digital babies.
   • Graphics Tablet- A pressure sensitive pad which the user draws on to guide a pointer across the screen.

2. Process

   • The CPU (Central Processing Unit) is the part of a computer system that is commonly referred to as the "brains" of a computer. The CPU is also known as the processor or microprocessor.

3. Output

   • A plotter can be used to produce high quality, accurate, A3 size or bigger drawings. They are usually used for Computer Aided Design (CAD) and Computer Aided Manufacture (CAM) applications, such as printing out plans for houses or car parts.
   • Many other types of output device exist including: speakers projectors buzzers motors switched outputs lights mechanical devices, eg a robot arm

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