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INPUT by Mind Map: INPUT

1. Touch Screens and Touch-Sensitive Pads

1.1. touch screen

1.1.1. a touch-sensitive display device

2. The Keyboard

2.1. an input device that contains keys users press to enter data and instructions into a computer

2.2. Most desktop computer keyboards

2.2.1. Between 101 and 105 keys

2.2.2. A numeric keypad on the right side of the keyboard

2.2.3. Function keys, CTRL keys, ALT keys, and arrow keys

2.2.4. WINDOWS key

2.2.5. APPLICATION key

2.2.6. Toggle keys

2.3. insertion point

2.3.1. also known as the cursor, is a symbol on the screen that indicates where the next character you type will appear

2.4. Wired Keyboards

2.4.1. USB port

2.4.2. Keyboard port

2.5. Wireless Keyboards

2.5.1. Bluetooth

2.5.2. IrDA

2.6. An ergonomic keyboard has a design that reduces the chance of wrist and hand injuries

2.7. Ergonomics

2.7.1. incorporates comfort, efficiency, and safety into the design of the workplace

2.8. Keyboards on mobile devices typically are smaller and/or have fewer keys

2.9. Some phones have predictive text input, which saves time when entering text using the phone’s keypad

3. Game Controllers

3.1. Video games and computer games use a game controller as the input device that directs movements and actions of on-screen objects

4. What Is Input?

4.1. Input is any data and instructions entered into the memory of a computer

4.2. Instructions can be entered into the computer in the form of programs, commands, and user responses

5. Objectives Overview

5.1. Define input and differentiate among a program, command, and user response

5.2. Identify the keys and buttons commonly found on desktop computer keyboards, and describe how keyboards for mobile computers and devices differ from desktop computer keyboards

5.3. Describe different mouse types and explain how to use a mouse

5.4. Describe various types of touch screens and explain how a touch-sensitive pad works

5.5. Describe various types of pen input, and identify other types of input for smart phones

5.6. Summarize the purpose of various game controllers

5.7. Explain how resolution affects the quality of a picture captured on a digital camera

5.8. Describe the uses of voice recognition, Web cams, and video conferencing

5.9. Discuss how various scanners and reading devices work

5.10. Summarize the various biometric devices

5.11. Discuss how POS terminals, automated teller machines, and DVD kiosks work

5.12. Identify alternative input devices for physically challenged users

6. Pointing Devices

6.1. A pointing device is an input device that allows a user to control a pointer on the screen

6.2. A pointer is a small symbol on the screen whose location and shape change as a user moves a pointing device

6.3. Mouse

6.3.1. a pointing device that fits under the palm of your hand comfortably Most widely used pointing device on desktop computers

6.3.2. A mouse can be wired or wireless

6.3.3. Mouse operations Point Press thumb button Tilt wheel Press wheel Click Free-spin wheel Rotate wheel Right-drag Right-click Double-click Triple-click Drag

6.4. Other Pointing Devices

6.4.1. Trackball a stationary pointing device with a ball on its top or side

6.4.2. Touchpad a small, flat, rectangular pointing device that is sensitive to pressure and motion

6.4.3. Pointing Stick a pressuresensitive pointing device shaped like a pencil eraser that is positioned between keys on a keyboard

7. Pen Input

7.1. you touch a stylus or digital pen on a flat surface to write, draw, or make selections

8. Digital Cameras

8.1. a mobile device that allows users to take pictures and store them digitally

8.2. Two factors affect the quality of digital camera photos

8.2.1. Resolution the number of horizontal and vertical pictures in a display device A pixel is the smallest element in an electronic display

8.2.2. Number of bits stored in each pixel Each pixel consists of one or more bits of data The more bits used to represent a pixel, the more colors and shades of gray that can be represented

9. Video Input

9.1. the process of capturing full-motion images and storing them on a computer’s storage medium

9.2. Web cam

9.2.1. a type of digital video camera that enables a user to Capture video and still images Send e-mail messages with video attachments Broadcast live images over the Internet Add live images to instant messages Make video telephone calls

9.3. video conference

9.3.1. a meeting between two or more geographically separated people

10. Scanners and Reading Devices

10.1. Flatbed

10.2. Pen or Handheld

10.3. Sheet-fed

10.4. Drum

10.5. MICR (magnetic ink character recognition)

10.5.1. devices read text printed with magnetized ink

10.5.2. MICR reader converts MICR characters into a form the computer can process

10.5.3. Banking industry uses MICR for check processing

10.6. Magnetic stripe card readers

10.6.1. read the magnetic stripe on the back of cards such as Credit cards Entertainment cards Bank cards Other similar cards

10.7. RFID (radio frequency identification)

10.7.1. uses radio signals to communicate with a tag placed in or attached to an object

10.7.2. An RFID reader reads information on the tag via radio waves

10.7.3. RFID can track Inventory Location of soldiers Employee wardrobes Airline baggage Gauging tire pressure and temperature Library books Prepaid tolls

10.8. Optical character recognition (OCR)

10.8.1. involves reading characters from ordinary documents

10.9. turnaround document

10.9.1. a document you return to the company that creates and sends it

10.10. Optical mark recognition (OMR)

10.10.1. reads hand-drawn marks such as small circles or rectangles

10.10.2. An OMR device scans the documents and matches the patterns of light

10.11. A bar code reader, also called a bar code scanner uses laser beams to read bar codes

10.12. Used in

10.12.1. Restaurants

10.12.2. Grocery stores

10.12.3. Factories

10.12.4. Warehouses

10.12.5. The outdoors

11. Biometric Input

11.1. Biometrics authenticates a person’s identity by verifying a personal characteristic

11.2. Fingerprint reader

11.3. Face recognition system

11.4. Hand geometry system

11.5. Voice verification system

11.6. Signature verification system

11.7. Iris recognition system

11.8. Retinal scanners

12. Terminals

12.1. A terminal is a computer that allows users to send data to and/or receive information from a host computer

12.2. A POS terminal records purchases, processes payment, and updates inventory

12.3. An automated teller machine (ATM) allows users to access their bank accounts

12.4. A DVD kiosk is a self-service DVD rental machine

13. Putting It All Together

13.1. user

13.1.1. Home New node New node New node

13.1.2. Home Office

13.1.3. mobile

13.1.4. power

13.1.5. Enterprise

14. Input Devices for Physically Challenged Users

14.1. Keyguard

14.2. Keyboards with larger keys

14.3. On-screen keyboard

14.4. Various pointing devices

14.5. Head-mounted pointer

14.6. Gesture recognition

14.7. Computerized implant devices