Input and Output Devices of Computers (Powerpoint Presentation)
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The document outlines a lesson plan for students to understand input and output devices, including their definitions, functions, and examples like keyboards, mice, monitors, and printers. It distinguishes between input devices, which allow users to enter data into a computer, and output devices, which present processed information to users. Additionally, it includes activities for students to categorize devices and a homework assignment to research more examples.
Input and Output Devices of Computers (Powerpoint Presentation)
- 4. OBJECTIVES At the end of the lesson the students can: Identify the different kinds of input and output devices Explain the importance and use of input and output devices Distinguish the devices whether it is an input or output device
- 5. INPUT DEVICE Input devices are those devices from which we can input data and instructions into the computers. An input device helps you to communicate with the computer. To enter information and issue commands, you use input devices.
- 6. Examples of input devices: Keyboard Mouse Scanner Microphone Digital Camera and Web Camera
- 7. The keyboard is the most common and widely used input device. It is made up of buttons called 'keys'. KEYBOARD
- 8. A mouse is an input devices that fits comfortably under the palm of your hand. A mouse is a pointing device. We use mouse to control the movement of the mouse pointer on the screen and to make selections from the screen. MOUSE
- 9. PICTURE OF A MOUSE
- 10. A scanner is a light-sensing input device that reads printed text and graphics and then translates the results into a form the computer can use. The image or text can be saved or changed on the computer. SCANNER
- 11. PICTURES OF SCANNER Optical scanner Bar code reader
- 12. microphone Device that converts electric pulses into broadcast or recorded sounds. A microphone allows you to record your voice to the computer. It also lets you speak to other people using computers or even on the telephone. A microphone is also called a mic. MICROPHONE
- 13. PICTURE OF A MICROPHONE
- 14. Web camera Miniature digital camera used to transmit video images in real time or for videoconferencing over the Internet. digital camcorder Portable video camera in which the recording tape is replaced by a processor, which records and stores sounds and images in digital format. digital camera Camera that contains a sensor and a microprocessor rather than film; it records and stores images in digital form, which can then be viewed on a screen. DIGITAL CAMERA AND WEB CAMERA
- 15. PICTURES OF CAMERA DIGITAL AND WEB CAMERA
- 16. OUTPUT DEVICE Output devices are hardware devices that display or present information to the user or other people. The data that has been processed into a useful form is called OUTPUT. Output is the result we get through output devices.
- 17. Examples of output devices: Monitor Printer Speaker Headphone
- 18. A monitor is an output device similar to a television screen. It is used to display text and graphics. There are several types of monitor: video monitor Device with a cathode ray surface that displays computer- generated graphics and texts visually. flat screen monitor Thin screen that usually has a liquid crystal display or plasma display surface. MONITOR
- 20. A printer is an output device that print text and graphics from a computer onto paper. A printer can produce both black and white and colour images. Examples of printers are: • Laser printer – print created by applying ink powder (toner) to drum • Dot-matrix printer – print using the typewriter approach by pushing the pins against the ink ribbon to form characters. • Ink-jet printer - print created by spraying dots of ink onto paper PRINTER
- 21. PICTURES OF PRINTERS Dot Matrix Printer Laser Jet Printer Ink Jet ( Bubble Jet or Desk-Jet) Printer
- 22. A speaker allows you to hear the sound generated by your computer. Speaker produces sound or music. SPEAKERS
- 23. Headphone is used to listen to music and sounds. Headphone usually have strap that rests on top of the head and a pair of speakers over both ears. HEADPHONE
- 24. Let’s go back! What are the two types of devices that we have discussed? What are the examples of input devices that we can use or find in a computer? How about the output devices? How important are the input and output devices for computers?
- 25. Let’s apply! Group Activity: The learners are divided into four groups – the same group that they had during the motivational activity. Group the following pictures of the devices whether it belongs to the input or output devices
- 26. EVALUATION Directions: Identify the following devices whether it belongs to the input and output devices group. Write IP if it is an input device, and OP if it is an output device.
- 27. 1. Keyboard 2. Mouse 3. Monitor 4. Microphone 5. Printer 6. Speakers 7. Headphones 8. Scanner 9. Web Camera 10. Optical Mouse
- 28. 1. Keyboard IP 2. Mouse IP 3. Monitor OP 4. Microphone IP 5. Printer OP 6. Speakers OP 7. Headphones OP 8. Scanner IP 9. Web Camera IP 10. Optical Mouse IP Assignment
- 29. ASSIGNMENT In your activity notebook, list down other kinds of input devices and output devices by using this table to list down you answers. You may research on the internet for reference. This is to be passed and checked by next meeting. INPUT DEVICES OUTPUT DEVICES 1. 2. 3. 4 5. 1. 2. 3. 4. 5.