INPUT OUTPUT DEVICES of COMPUTER

*interaction of a computer with the external environment via input output devices i/o.


INPUT DEVICES - Allows the user to feed the data into the computer.

• Keyboard
• Mouse
• Trackball
• Joystick
• Lightpen
• Bar code scanner
• Optical mark reader
• Touch screens
• Microphone
• Webcam
• Scanner
• Smart card reader
• Biometric Scanner
• Optical character reader

OUTPUT DEVICES - Communicate the results produced to the outer world.

• Monitor
• Printer
• Plotter
• Speaker
• Headphones
• Projectors

i/o ports - are wires connecting different parts of a computer.

• Parallel port
• Serial port
• USB
• Firewire