Section 2B. Objectives List two reasons why some people prefer alternative methods of input over a standard keyboard or mouse. List three categories of.

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Presentation transcript:

Section 2B

Objectives List two reasons why some people prefer alternative methods of input over a standard keyboard or mouse. List three categories of alternative input devices. List two type of optical input devices and describe their uses. Describe the uses for speech-recognition systems. Identify two types of video input devices and their uses.

Pens

Touch Screens

Game Controllers

Optical Input Device Bar Code Readers Image Scanners and Optical Character Recognition (OCR)

Self Check 1. _______________ are often used for taking notes or creating short messages. 2. Game controllers generally fall into the categories of ______________ and _______________. 3. _________________ software can translate a scanned image of a text document into text that can be edited. Pen based computer joysticksgame pads Optical character recognition (OCR)

Audiovisual Input Devices Microphones and Speech Recognition Video Input Digital Cameras

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