Input Devices


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Input Devices

  1. 1. Input Devices<br />
  2. 2. Keyboards<br /><ul><li>Can only enter data at typing speed</li></ul>Graphics Tablet<br /><ul><li>Easier to draw with than a mouse</li></ul>Touch Screen<br /><ul><li>Difficult to type with this
  3. 3. Good for choosing from a menu</li></li></ul><li>Add a slide for each of the following Input Devices<br /><ul><li>For each one add one or more pictures
  4. 4. For each say where and when they are used
  5. 5. Barcode reader
  6. 6. MICR
  7. 7. OMR
  8. 8. OCR
  9. 9. Magnetic Stripe
  10. 10. Joystick
  11. 11. Concept keyboard
  12. 12. Chip reader
  13. 13. Tracker ball
  14. 14. Scanner
  15. 15. Touch Pad
  16. 16. PIN Pad
  17. 17. Light Pen
  18. 18. Web cam</li></li></ul><li>Barcode Reader<br />What -A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode&apos;s image data provided by the sensor and sending the barcode&apos;s content to the scanner&apos;s output port. <br />Where - Supermarket<br />When - Scanning Products<br />
  19. 19. MICR <br />What – Magnetic Ink Character Recognition,or MICR, is a character recognition technology used primarily by the banking industry to facilitate the processing of cheques. The technology allows computers to read information (such as account numbers) off of printed documents. Unlike barcodes or similar technologies, however, MICR codes can be easily read by humans.<br />Where - Bank<br />When – reading cheques <br />
  20. 20. OMR<br />What- Optical Mark Recognition (also called Optical Mark Reading and OMR) is the process of capturing human-marked data from document forms such as surveys, tests and questionnaire <br />Where – Anywhere (school, company etc.)<br />When – marking examinations<br />
  21. 21. OCR<br />What- Optical character recognition, usually abbreviated to OCR, is the mechanical or electronic translation of images of handwritten, typewritten or printed text (usually captured by a scanner) into machine-editable text.<br />Where- office and company <br />When- converting paper books and document into electronic filesalso to computerize and old record keeping system in an office or to serve on a website <br />
  22. 22. Magnetic stripe<br />What-A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card. The magnetic stripe, sometimes called a magstripe, is read by physical contact and swiping past a reading head. Magnetic stripe cards are commonly used in credit cards, identity cards, and transportation tickets.<br />Where-anywhere ( shopping mall , supermarket etc.)<br />When –paying money<br />
  23. 23. Joystick<br />What- A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick.<br />Where- Games shop, Home , Aircraft, Cranes, Trucks<br />When- Playing Games (Play station and Computer), controlling machines <br />
  24. 24. Concept Keyboard<br />What-A concept keyboard is a flat board that contains a grid of buttons. Each button can be programmed to do whatever you want. An overlay sheet with pictures or symbols is placed on the grid so that the user can tell what pressing on different areas will do. <br />Where- Fast food restaurants <br />When- Order <br />
  25. 25. Chip Reader<br />Where- computer<br />When- reading chips<br />
  26. 26. Tracker Ball<br />What -A tracker ball is an input device where a finger is used to rotate a ball. This moves a pointer on the screen<br />Where- Computer<br />When- to move the pointer on the screen <br />
  27. 27. Scanner<br />What-A scanner is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display. <br />Where- office, school etc.<br />When- scanning information into the computer <br />
  28. 28. Touch Pad<br />What-A touchpad (also trackpad) is a pointing device consisting of specialized surface that can translate the motion and position of a user&apos;s fingers to a relative position on screen. They are a common feature of laptop computers and also used as a substitute for a computer mouse where desk space is scarce.<br />Where- Laptop and mobile phones (blackberry etc.)<br />When- moving the pointer on the screen<br />
  29. 29. Pin Pad<br />What-A PINpad is an electronic device used in a debit or smart card-based transaction to input and encrypt the cardholder&apos;s PIN. PIN pads are normally used with integrated point of sale devices in which the Electronic Cash Register (ECR) machine is responsible for taking the sale amount and initiating/handling the transaction<br />Where- shopping mall ,supermarket etc.<br />When- paying money using credit card<br />
  30. 30. Light Pen<br />What-A light pen is a computerinput device in the form of a light-sensitive wand used in conjunction with a computer&apos;s CRT TV set or monitor. It allows the user to point to displayed objects, or draw on the screen, in a similar way to a touch screen but with greater positional accuracy. A light pen can work with any CRT-based display, but not with LCD screens, projectors and other display devices. <br />Where – computer<br />When- pointing on the selected information <br />
  31. 31. Web Cam<br />What-A webcam is a video capture device connected to a computer or computer network, often using a USB port or, if connected to a network, internet or Wi-Fi.<br />Where- computer, laptop <br />When- talking (skype)<br />