1 / 15

Understanding Input Devices: Types, Functions, and Technologies in Computing

Input devices are crucial hardware components that allow users to enter data or instructions into a computer. This guide explores various types of input devices like keyboards, pointing devices (mice, touchpads, and scanners), and audio/video input systems. Each device type serves different functions, from capturing unprocessed data to recognizing user commands. It also covers advanced technologies such as optical readers, RFID, and biometric systems, which authenticate identity or process information through unique characteristics. Understanding these tools enhances user interaction with computers.

euphemia
Télécharger la présentation

Understanding Input Devices: Types, Functions, and Technologies in Computing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Input Devices

  2. Input • Data or instructions entered into memory of computer • Input device is any hardware component used to enter data or instructions

  3. Input - Types • Data • Unprocessed text, numbers, images, audio, and video • Commands • Programs • Commands • User Responses

  4. Keyboards

  5. Keyboards - Types Standard Ergonomic Wireless Notebook Handheld On Screen

  6. Pointing Devices • Pointing devices are used to • select and manipulate objects • input certain types of data • to issue commands to the computer.

  7. Pointing Devices • Wheel Mouse • Optical Mouse • Trackball • Touch Pad • Touch Screen • Stylus – Two Types • Standard • Inductive

  8. Scanners • A scanner captures an image of a flat object in digital form and transfers that data to a computer. • The quality of scanned images is indicated by optical resolution, usually measured in the number of dots per inch (dpi).

  9. Flatbed Pen or Handheld Sheet-fed Drum Scanners - Types

  10. Optical Readers • Device that uses light source to read characters, marks, and codes and then converts them into digital data • OMR • Bar Code

  11. Magnetic-Ink Character Recognition (MICR) • Banking industry almost exclusively uses MICR for check processing

  12. RFID • Radio frequency identification (RFID) is a technology that can store, read, and transmit data located in RFID tags. • RFID tags • contain tiny chips and radio antennas • can be attached to objects, such as products, price tags, shipping labels, ID cards, assets, and more. • The data in RFID tags is read by RFID readers.

  13. Audio Input • Audio input is the process of entering audio data into the computer. • Speech recognition systems enable the computer to recognize voice input as spoken words and require appropriate software. • Music input systems are used to create an original music composition or arrangement, or to create a custom music CD.

  14. Video Input • Process of entering full-motion images into computer • Video can come form; • Digital Video Recorders • Web Cams

  15. Biometric Input • Authenticates person’s identity by verifying personal characteristic • Fingerprint scanner • Hand geometry • Voice verification • Iris recognition • Facial recognition

More Related