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Input nd Output Devices.pptx
Input devices such as keyboards, mice, and scanners allow users to enter data into a computer. Output devices like monitors, printers, and speakers allow the computer to display or communicate processed information to users. Peripheral devices are optional hardware components that are not essential for basic computer functioning. Common input devices use keyboard entry or direct entry to transfer data, while output occurs via visual displays, audio, or physical printouts.
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Input nd Output Devices.pptx
- 2.
- 3. HARDWARE refers to thephysical parts of a computer and related devices. is every physical piece that makes up your computer.
- 4. PERIPHERAL DEVICES are theparts of the computer that are not absolutely needed for the computer to work.
- 5. Types of HardwareDevices Input Devices and Output Devices
- 6. Input Devices An inputdevice lets you communicate with a computer. Input devices are used to enter information and issues commands
- 7. Examples of InputDevices keyboard, mouse, joystick, touchscreen, scanner, digital camera, microphone, web camera etc.
- 8. Two Types ofInput Devices A. Keyboard Entry B. Direct Entry
- 9. A. Keyboard Entry Datais inputted to the computer through a keyboard
- 10. Keyboard • The firstinput device developed for PC • Data is transferred to the PC over a short cable with a circular 6-pin Mini-din connector that plugs into the back of the motherboard
- 11. B. Direct Entry Thesedevices create machine- readable data on paper, or magnetic media, or feed it directly into the computer’s CPU
- 12. 1. Pointing Devices Aninput device used to move the pointer (cursor) on screen
- 13. 1.1 Mouse • Themost common ‘pointing device’ used in PCs. Every mouse has two buttons and most have one or two scroll wheels.
- 14. 1.2 Touch Screen •A display screen that is sensitive to the touch of a finger or stylus. Used in myriad applications, including ATM, POS terminals etc. The touch screen became wildly popular for smartphones and tablets
- 15. 1.3 Light Pen •A light-sensitive wired to a video terminal used to draw or select menu options. The user brings the pen to the desired point on screen and presses the pen button to make contact
- 16. 1.4 Digitizer Tablet •A graphic drawing tablet used for sketching new images or tracing old ones. Also called a “graphic tablet,” the user contact the surface of the device with a wired or wireless pen.
- 17. 2. Scanner • Usedto put printed pictures and text into a computer. Hand-held scanner Flatbed scanner Sheet-fed scanner
- 18. Voice-Input Devices • Usedto record sound or audio file then save in the computer
- 19. Output Devices An outputdevice is any piece of computer hardware that displays result after the computer has processed the input data that has been entered
- 20. Examples of OutputDevices Monitors, smartboard, projector, printer, speakers
- 21. 1. Computer DisplayMonitor Types of Monitor: a. CRT – Cathode Ray Tube b. LCD – Liquid Crystal Display c. LED – Light Emitting Diode It displays information in visual form, using text and graphics. The portion of the monitor that displays the information is called the screen or video display terminal.
- 22. 1. Computer DisplayMonitor A. CRT Monitors – Cathode Ray Tube (CRT) were the only type of display for use with desktop PCs. They are relatively big (14” to 16” deep) and heavy )over 15 lbs).
- 23. 1. Computer DisplayMonitor B. LCD Monitors – Liquid Crystal Display (LCD) technology has been used in laptops for sometime. It has recently been made commercially available as monitors for desktop PCs.
- 24. 1. Computer DisplayMonitor C. LED Monitors (Light Emitting Diode) – A display and lightning technology used on almost every electrical and electronic product on the market, from a tiny on/off light to digital readouts, flashlights, traffic lights etc.
- 25. 2. DLP Projector •Use to display video, images or computer data on a screen or other flat surface
- 26. 3. Smart Board •A type of display screen that has a touch sensitive transparent panel covering the screen, which is similar to touch screen
- 27. 4. Printer • producesa representation of an electronic document on physical media such as paper or transparency film. • Produce a hard copy (also called printout).
- 28. 4. Printer Types ofPrinter
- 29. Speaker • Used tooutput sounds from the computer
- 30. Summary: Hardware devices arethe physical and tangible parts of the computer system. It is categorize into two types, first is the input devices used for entering data/information in the computer system and the output devices used for displaying or producing processed data/information.