CHAPTER 2 - INPUT OUTPUT
Chapter 2: Input Output
Page 1: Overview
Title: Chapter 2: Input Output
Page 2: Objectives
Define input
Describe different mouse types and their operation
Summarize functionality of various pointing devices and gaming/media player controllers
Explain voice recognition technology
Outline input devices for smartphones, PDAs, and Tablet PCs
Page 3: Continued Objectives
Describe web cams and video conferencing applications
Discuss scanners and reading devices
Explain types of terminals
Summarize various biometric devices
Identify alternative input devices for users with physical challenges
Page 4: What Is Input?
Definition: An input device allows users to enter data and instructions into a computer's memory
Page 5: Types of Input
Unprocessed data types: Text, numbers, images, audio, video
Instructions: Programs, commands, user responses
Page 6: Pointing Devices
Mouse: A pointing device controlling pointer movement
Types: Mechanical, optical, laser, air, wireless
Page 7: Trackball
Definition: Stationary device with a movable ball for pointer control
Page 8: Touchpad and Pointing Stick
Touchpad: Pressure and motion-sensitive flat device
Pointing Stick: Pencil eraser-shaped device between keyboard keys
Page 9: Light Pen
Definition: Handheld device for detecting light on a screen
Page 10: Touch Screen
Definition: Allows interaction by touching screen areas; often used in kiosks
Page 11: Digital Pen
Function: A pressure-sensitive pen used with graphics tablets and electronic boards
Page 12: Gaming Controllers
Types: Gamepads, joysticks, wheels, light guns, dance pads, motion-sensing controllers
Page 13: Touch-Sensitive Pad
Functionality: Allows interaction with portable media players via touch
Page 14: Portable Keyboard
Definition: Full-sized keyboard connecting to mobile phones
Page 15: Tablet PC
Definition: Mobile computer with handwriting recognition; uses digital pen for input
Page 16: Web Cam
Uses: Captures video and images; supports online video calls and live broadcasts
Page 17: Video Conferencing
Definition: Enables real-time audio and video communication over the Internet
Page 18: Scanner
Definition: Device converting physical text/images into electronic format
Page 19: Optical Readers
Functions: OCR reads characters, OMR reads pencil marks
Page 20: Barcode Reader
Function: Uses lasers to read barcodes
Page 21: Barcodes
Definition: Vertical lines and spaces used as identification codes
Page 22: RFID Reader
Functionality: Reads data on RFID tags using radio waves
Page 23: Magnetic Stripe Card Reader
Definition: Reads information from credit cards' magnetic stripes
Page 24: MICR Reader
Application: Primarily used in banking for check processing
Page 25: Data Collection Device
Definition: Gathers data directly at transaction locations
Page 26: Point of Sale (POS) Terminal
Functionality: Records purchases and processes payment methods
Page 27: Automated Teller Machine (ATM)
Definition: Self-service banking connected to a central network
Page 28: Biometric Input
Definition: Verifies identity using personal characteristics
Page 29: Examples of Biometric Technology
Examples: Fingerprint readers, voice verification, signature recognition
Page 30: Input Devices for Physically Challenged Users
Devices: Keyguard, head-mounted pointer, gesture recognition
Page 31: Input Summary
Key devices: Keyboard, mouse, pointing devices, voice input, cameras
Page 32: Additional Input Summary
Includes: Scanners, terminals, biometric devices, devices for challenges
Page 33: Output Objectives
Describe categories of output, monitor types, printers, sound devices
Page 34: Output Device Characteristics
Includes: Fax machines, peripherals, interactive devices, options for challenges
Page 35: Definition of Output
Output: Data processed into useful information; output devices convey this
Page 36: Basic Categories of Output
Types: Text, graphics, audio, video
Page 37: Display Device Overview
Definition: Visually conveys information; often referred to as soft copy
Page 38: LCD Monitor
Characteristics: Liquid crystal display with various mobile applications
Page 39: Multiple LCD Monitors
Users may utilize more than one monitor for productivity
Page 40: Mobile Devices
Examples: Tablet PCs, portable media players, mobile phones
Page 41: Resolution
Definition: Clarity of image displayed, determined by pixel count
Page 42: Plasma Monitor
Characteristics: Larger size and superior color, but more expensive than LCD
Page 43: CRT Monitor
Definition: Older technology using cathode ray tubes
Page 44: ENERGY STAR Program
Aims for energy-efficient device manufacturing
Page 45: Definition of Printer
Produces hard copies of text and graphics
Page 46: Choosing a Printer
Factors: Budget, speed, print quality, compatibility
Page 47: Nonimpact Printer
Definition: Forms print without striking paper
Page 48: Printer Resolution
Sharpness measured in dots per inch (dpi)
Page 49: Photo Printer
Produces high-quality images, often with memory card slots
Page 50: Laser Printer
High-speed, high-quality printing
Page 51: Thermal Printer
Creates images using heat-sensitive paper
Page 52: Mobile Printer
Portable option for on-the-go printing
Page 53: Label and Postage Printers
Specializes in printing adhesive labels and postage
Page 54: Plotter
Device for producing high-quality drawings
Page 55: Dot-Matrix Printer
Impact printer producing images via pin strikes
Page 56: Line Printer
High-speed impact printer printing complete lines
Page 57: Audio Output Device
Produces sound through speakers or headsets
Page 58: Facsimile (Fax) Machine
Transmits documents over phone lines
Page 59: Fax Modem
Sends and receives electronic documents as faxes
Page 60: Multifunction Peripheral
Combines printing, scanning, copying, and faxing
Page 61: Data Projector
Projects images from a computer onto a larger screen
Page 62: Interactive Whiteboard
Touch-sensitive device for presenting information
Page 63: Force Feedback
Provides resistance based on user actions
Page 64: Magnification for the Visually Impaired
Windows Magnifier increases text and element sizes
Page 65: Additional Accessibility Options
Includes text size adjustments, narrating software, Braille printers
Page 66: Output Summary
Key devices: Display devices, printers, audio devices, multifunction peripherals
Page 67: Next Chapter Preview
Focus on Chapter 3: Data Storage