Fundamentals of Computer and programming in C

Rohit Khokher

Input Output Devices

Data From External world

Input Devices

Input data in internal Format

CPU & Memory

Processed data in internal Format

Output Devices

Processed Results in Human Acceptable Form

Input Devices

• Keyboard• Point and Draw: Mouse, Trackball, Joystick, Electronic Pen, Touch screen

• Scanners: Image scanners, Flatbed, Handheld, Optical Character Devices(OCR), Optical Mark Reader (OMR), Barcode Reader, Magnetic Ink Character Reader (MICR)

• Digitizers• Card Readers• Voice Recognition• Vision based Devices• Cameras• Sensors• Satellites

Output Devices

• Monitors• Printers : Dot-matrix, Ink-jet, drum, Chain, laser,… • Plotters• Projectors• Speakers• Secondary storage devices