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Input and Output Hardware Ms. Fojan’s Class. Group Members Mr. Nafees Ahmed Khan Mr. Yasir Munawar.

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Presentation on theme: "Input and Output Hardware Ms. Fojan’s Class. Group Members Mr. Nafees Ahmed Khan Mr. Yasir Munawar."— Presentation transcript:

1 Input and Output Hardware Ms. Fojan’s Class

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


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