INPUT
作者:Kongkiat Kiattherdlar
1. Mouse
1.1. A mouse is a pointing device that fits under the palm of your hand comfortably Most widely used pointing device on desktop computers
1.2. A mouse can be wired or wireless
2. Other Pointing Devices
2.1. A trackball
2.2. A pointing stick
2.3. A touchpad
3. Touch Screens and Touch-Sensitive Pads
3.1. A touch screen is a touch-sensitive display device
4. Other Input for Smart Phones
5. Game Controllers
5.1. Gamepads
5.2. Joysticks and Wheels
5.3. Light guns
5.4. Dance pads
5.5. Motion-sensing controllers
6. Digital Cameras
6.1. is a mobile device that allows users to take pictures and store them digitally
6.1.1. Field cameras
6.1.2. Studio cameras
6.1.3. Point-and-shoot camera
7. Voice Input
7.1. Voice input is the process of entering input by speaking into a microphone
7.2. Voice recognition is the computer’s capability of distinguishing spoken words
7.3. Video input is the process of capturing full-motion images and storing them on a computer’s storage medium
7.4. Music production software allows users to record, compose, mix, and edit music and sounds
7.5. Audio input is the process of entering any sound into the computer
7.5.1. Speech
7.5.2. Music
7.5.3. Sound Effects
8. Biometric Input
8.1. Biometrics authenticates a person’s identity by verifying a personal characteristic
9. Terminals
9.1. A terminal is a computer that allows users to send data to and/or receive information from a host computer
10. Putting It All Together
11. Input Devices for Physically Challenged Users
11.1. Keyboard with larger keys
11.2. Head-mounted pointer
12. What is in input ?
12.1. Input is any data and instructions entered into the memory of a computer
12.2. Instructions can be entered into the computer in the form of programs, commands, and user responses
13. The keyboard
13.1. is an input device that contains keys users press to enter data and instructions into a computer
13.2. The insertion point, also known as the cursor, is a symbol on the screen that indicates where the next character you type will appear
13.3. An ergonomic keyboard has a design that reduces the chance of wrist and hand injuries
13.4. Ergonomics incorporates comfort, efficiency, and safety into the design of the workplace
13.5. Keyboards on mobile devices typically are smaller and/or have fewer keys
13.6. Some phones have predictive text input, which saves time when entering text using the phone’s keypad
14. Pointing Devices
14.1. A pointing device is an input device that allows a user to control a pointer on the screen
14.2. A pointer is a small symbol on the screen whose location and shape change as a user moves a pointing device
15. Pen Input
15.1. With pen input, you touch a stylus or digital pen on a flat surface to write, draw, or make selections
16. Video Input
16.1. Video input is the process of capturing full-motion images and storing them on a computer’s storage medium
16.2. A Web cam is a type of digital video camera
16.3. A video conference is a meeting between two or more geographically separated people
17. Scanners and Reading Devices
17.1. Pen or Handheld
17.2. Flatbed
17.3. Sheet-fed
17.4. Drum
17.5. Optical character recognition (OCR) involves reading characters from ordinary documents
17.6. A turnaround document is a document you return to the company that creates and sends it
17.7. Optical mark recognition (OMR) reads hand-drawn marks such as small circles or rectangles
17.8. An OMR device scans the documents and matches the patterns of light
17.9. A bar code reader, also called a bar code scanner uses laser beams to read bar codes
17.10. 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 RFID can track
17.11. Magnetic stripe card readers read the magnetic stripe on the back of cards such
17.12. MICR (magnetic ink character recognition) devices read text printed with magnetized ink An MICR reader converts MICR characters into a form the computer can process Banking industry uses MICR for check processing
17.13. Data collection devices obtain data directly at the location where the transaction or event takes place