Input Devices Input Data or instructions entered into

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Input Devices

Input Devices

Input � Data or instructions entered into memory of computer � Input device is

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

Input - Types � Data Unprocessed text, numbers, images, audio, and video � Commands

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

Keyboards CMPTR Chapter 2: Computer Hardware 4

Keyboards CMPTR Chapter 2: Computer Hardware 4

Keyboards - Types �Standard �Ergonomic �Wireless �Notebook �Handheld �On Screen CMPTR Chapter 2: Computer

Keyboards - Types �Standard �Ergonomic �Wireless �Notebook �Handheld �On Screen CMPTR Chapter 2: Computer Hardware 5

Pointing Devices � Pointing devices are used to select and manipulate objects input certain

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

Pointing Devices • • • Wheel Mouse Optical Mouse Trackball Touch Pad Touch Screen

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

Scanners � A scanner captures an image of a flat object in digital form

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). CMPTR Chapter 2: Computer Hardware 8

Scanners - Types Flatbed Pen or Handheld Sheetfed Drum 9

Scanners - Types Flatbed Pen or Handheld Sheetfed Drum 9

Optical Readers � Device that uses light source to read characters, marks, and codes

Optical Readers � Device that uses light source to read characters, marks, and codes and then converts them into digital data OMR Bar Code CMPTR Chapter 2: Computer Hardware 10

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

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

RFID � Radio frequency identification (RFID) is a technology that can store, read, and

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. CMPTR Chapter 2: Computer Hardware 12

Audio Input � Audio input is the process of entering audio data into the

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. CMPTR Chapter 2: Computer Hardware 13

Video Input �Process of entering fullmotion images into computer �Video can come form; Digital

Video Input �Process of entering fullmotion images into computer �Video can come form; Digital Video Recorders Web Cams

Biometric Input � Authenticates person’s identity by verifying personal characteristic Fingerprint scanner Hand geometry

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

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Input Output Devices Input Devices An input deviceInput Output Devices Input Devices An input device
Input Devices Image Capture Devices Sound Capture DevicesInput Devices Image Capture Devices Sound Capture Devices
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Input Devices Contents Introduction v Common Input DevicesInput Devices Contents Introduction v Common Input Devices
Introduction to Input Devices Input Devices Units thatIntroduction to Input Devices Input Devices Units that
Computer Basics Input and Output Devices Input DevicesComputer Basics Input and Output Devices Input Devices
3 Input Devices and Methods Manual input devices3 Input Devices and Methods Manual input devices
Chapter No 3 Input Output Devices Input DevicesChapter No 3 Input Output Devices Input Devices
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Input Output Devices Bab V Input devices AlatInput Output Devices Bab V Input devices Alat
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