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INPUT by Mind Map: INPUT

1. Pointing Devices

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

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

2. Objectives Overview

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

2.2. 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

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

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

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

2.6. Summarize the purpose of various game controllers

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

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

2.9. Discuss how various scanners and reading devices work

2.10. Summarize the various biometric devices

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

2.12. Identify alternative input devices for physically challenged users

3. What Is Input?

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

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

3.2.1. A program is a series of related instructions that tells a computer what tasks to perform and how to perform them

3.2.2. Programs respond to commands that a user issues

3.2.3. A user response is an instruction a user issues by replying to a question displayed by a program

4. What Are Input Devices

4.1. An input device is any hardware component that allows users to enter data and instructions into a computer

5. The Keyboard

5.1. A keyboard is an input device that contains keys users press to enter data and instructions into a computer

5.2. Most desktop computer keyboards have…

5.2.1. Between 101 and 105 keys

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

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

5.2.4. WINDOWS key

5.2.5. APPLICATION key

5.2.6. Toggle keys

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

5.4. Wired Keyboards

5.4.1. USB port

5.4.2. Keyboard port

5.5. Wireless Keyboards

5.5.1. Bluetooth

5.5.2. IrDA

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

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

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

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

6. Mouse

6.1. A mouse can be wired or wireless

6.2. A mouse is a pointing device that fits under the palm of your hand comfortably

6.2.1. Most widely used pointing device on desktop computers

6.3. Mouse operations

6.3.1. Point

6.3.2. Click

6.3.3. Right-click

6.3.4. Double-click

6.3.5. Triple-click

6.3.6. Drag

6.3.7. Right-drag

6.3.8. Rotate wheel

6.3.9. Free-spin wheel

6.3.10. Press wheel

6.3.11. Tilt wheel

6.3.12. Press thumb button

7. Other Pointing Devices

7.1. Trackball

7.1.1. A trackball is a stationary pointing device with a ball on its top or side

7.2. Touchpad

7.2.1. A touchpad is a small, flat, rectangular pointing device that is sensitive to pressure and motion

7.3. Pointing Stick

7.3.1. A pointing stick is a pressure-sensitive pointing device shaped like a pencil eraser that is positioned between keys on a keyboard

8. Touch Screens and Touch-Sensitive Pads

8.1. A touch screen is a touch-sensitive display device

8.2. Microsoft Surface

8.3. Touch-sensitive pads

9. Pen Input

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

10. Other Input for Smart Phones

11. Game Controllers

11.1. Joysticks and Wheels

11.2. Light guns

11.3. Gamepads

11.4. Light guns

11.5. Motion-sensing controllers

12. Digital Cameras

12.1. Studio cameras

12.2. Field cameras

12.3. Point-and-shoot camera

12.4. Two factors affect the quality of digital camera photos:

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

12.4.2. 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

13. Voice Input

13.1. Voice input is the process of entering input by speaking into a microphone

13.2. Voice recognition is the computer’s capability of distinguishing spoken words

13.3. Audio input is the process of entering any sound into the computer

13.3.1. Speech

13.3.2. Music

13.3.3. Sound Effects

13.4. Music production software allows users to record, compose, mix, and edit music and sounds

14. Video Input

15. Scanners and Reading Devices

15.1. Flatbed

15.2. Pen or Handheld

15.3. Sheet-fed

15.4. Drum

15.5. Optical character recognition (OCR) involves reading characters from ordinary documents

15.6. A turnaround document is a document you return to the company that creates and sends it

15.7. Optical mark recognition (OMR) reads hand-drawn marks such as small circles or rectangles

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

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

15.10. Magnetic stripe card readers read the magnetic stripe on the back of cards such as:

15.10.1. Credit cards

15.10.2. Entertainment cards

15.10.3. Bank cards

15.10.4. Other similar cards

15.11. RFID (radio frequency identification) uses radio signals to communicate with a tag placed in or attached to an object An RFID reader reads information on the tag via radio waves

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

15.12. MICR (magnetic ink character recognition) devices read text printed with magnetized ink

15.12.1. Banking industry uses MICR for check processing

15.12.2. Data collection devices obtain data directly at the location where the transaction or event takes place

15.12.3. Used in Restaurants Grocery stores Factories Warehouses The outdoors

16. Biometric Input

16.1. Fingerprint reader

16.2. Face recognition system

16.3. Hand geometry system

16.4. Voice verification system

16.5. Signature verification system

16.6. Iris recognition system

16.7. Retinal scanners

17. Terminals

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

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

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

18. Input Devices for Physically Challenged Users

18.1. Keyguard

18.2. Keyboards with larger keys

18.3. On-screen keyboard

18.4. Various pointing devices

18.5. Head-mounted pointer

18.6. Gesture recognition

18.7. Computerized implant devices

18.8. Keyboard with larger keys

18.9. Head-mounted pointer

19. Summary

19.1. Various techniques of entering input

19.2. Several commonly used input devices

19.3. Keyboard, mouse, and other pointing devices; touch screens, pen input, other input for smart phones, game controllers, digital cameras, voice input, video input, scanners and reading devices, biometric input, and terminals

19.4. Input devices for physically challenged users