Input output hardware
- 1. Input and Output Hardware Chapter No.6
- 2. Group Members Mr. Nafees Ahmed Khan Mr. Yasir Munawar
- 3. Hardware The bodily object of a Technology The Physical Components of a Computer Some are connected by software while the others are plug-n-play It include: Input Devices Output Devices
- 4. Linking People and Hardware People enter data through Input Hardware and then receive results of processing through Output Hardware.
- 5. Input Devices Devices use to enter data in computer It includes devices : Keyboard Pointing Devices Scanners Microphone
- 6. Keyboard Every Computer contains Keyboard Looks like a typewriter Most widely used Inputs letters, numbers and other symbols
- 7. Pointing Devices The motion of movement of pointing devices is converted to similar movement on a monitor It includes : Mouse Track ball Joystick Light Pen
- 8. Scanners Scanners allow input of printed data Reads text, photographs and graphics Process of Scanning: It converts data into light and dark picture element or pixels Types of Scanners Flatbed Scanner Handheld Scanner Color Scanner
- 9. Other Input Devices Touch Sensitive Screen Digital Camera Sensors Credit Card Readers
- 10. Output Devices Devices that gives out result of the entered data Three Categories: Permanent Output Temporary Output Action Output
- 11. Permanent Output Devices Computer processed information in the form of printed documents, drawings and microfilms It includes: Printers: Plotters
- 12. Printers It gives hard copy to the organization for routine business correspondence , billing and accounting information For example : Architects use to compute budget Types of Printers: Impact Printers DeskJet Dot matrix Non Impact Printers Laser Printer Electrostatic Printer
- 13. Plotters It gives output in the form of graphs, maps, charts and drawings For example: Artist uses plotters for the different sketches Types of Plotters: Flatbed Plotters Drum Plotters
- 14. Temporary Output Devices Video displays and audio responses Also provide output for immediate temporary use Includes: Video Display Output CRT (Cathode Ray Tube) Monitor Flat screen Speech synthesizer
- 15. Action Output Devices Consist of processing data to initiate some form of movement or process to control activity Types of Action Output: Computer Numerical Control (CNC) Machine Computer Aided Machine (CAM) Robotics