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INPUT by Mind Map: INPUT

1. What Is Input?

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

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

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. Touch Screens and Touch-Sensitive Pads

3.1. touch screen

3.1.1. a touch-sensitive display device

4. Pen Input

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

5. Scanners and Reading Devices

5.1. Flatbed

5.2. Pen or Handheld

5.3. Sheet-fed

5.4. Drum

5.5. MICR (magnetic ink character recognition)

5.5.1. devices read text printed with magnetized ink

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

5.5.3. Banking industry uses MICR for check processing

5.6. Magnetic stripe card readers

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

5.7. RFID (radio frequency identification)

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

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

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

5.8. Optical character recognition (OCR)

5.8.1. involves reading characters from ordinary documents

5.9. turnaround document

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

5.10. Optical mark recognition (OMR)

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

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

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

5.12. Used in

5.12.1. Restaurants

5.12.2. Grocery stores

5.12.3. Factories

5.12.4. Warehouses

5.12.5. The outdoors

6. Putting It All Together

6.1. user

6.1.1. Home New node New node New node

6.1.2. Home Office

6.1.3. mobile

6.1.4. power

6.1.5. Enterprise

7. Objectives Overview

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

7.2. 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

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

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

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

7.6. Summarize the purpose of various game controllers

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

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

7.9. Discuss how various scanners and reading devices work

7.10. Summarize the various biometric devices

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

7.12. Identify alternative input devices for physically challenged users

8. Pointing Devices

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

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

8.3. Mouse

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

8.3.2. A mouse can be wired or wireless

8.3.3. 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

8.4. Other Pointing Devices

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

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

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

9. Game Controllers

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

10. Digital Cameras

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

10.2. Two factors affect the quality of digital camera photos

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

10.2.2. 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

11. Video Input

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

11.2. Web cam

11.2.1. 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

11.3. video conference

11.3.1. a meeting between two or more geographically separated people

12. Biometric Input

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

12.2. Fingerprint reader

12.3. Face recognition system

12.4. Hand geometry system

12.5. Voice verification system

12.6. Signature verification system

12.7. Iris recognition system

12.8. Retinal scanners

13. Terminals

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

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

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

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

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