Introduction to Input Devices. Input Devices Units that gather information and transform that information into a series of electronic signals for the.

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Presentation transcript:

Introduction to Input Devices

Input Devices Units that gather information and transform that information into a series of electronic signals for the computer.

Keyboard An arrangement of letters, numbers, and special function keys that act as the primary input device to the computer.

Mouse An input device that allows the user to manipulate objects on the screen by moving the mouse along the surface of the desk.

Sound Card A circuit board that gives the computer the ability to accept audio input, play sound files, and produce audio output through speakers or headphones.

Digital Camera Allows users to take pictures and store images electronically. Most digital cameras have built in internal flash memory to store pictures. The Three Basic Types of Digital Cameras Are: Field Cameras: has many lenses and other attachments Studio Cameras: stationary camera used for professional photography Point and Shoot: affordable and lightweight for general home and business use

Pointing Device An input device that allows a user to control a pointer on the screen. The location and shape change as the user moves the pointing device. Pointing Devices Include: Mouse Trackball Touchpad

Insertion Point A symbol on the screen that is usually blinking in the shape of a vertical bar. Used to indicate where the next character you type or item you insert will be place.

Scanner Light sensing input device that reads printed text and graphics and then translates the results into a form the computer can process. Allows users to capture data from an original source document and save in an electronic format.

Smart Phone A small hand held device that users can enter data and instructions using a variety of techniques. Ways to Input Using a Smart Phone: Draw or write on special paper with a digital pen Enter text-based messages via a wireless keyboard Speak into the microphone that wirelessly communicates with the phone Take a picture using the built in digital camera

Touch Screen A touch sensitive display device that allows users to interact with devices by touching various areas of the screen. Examples of Touch Screens: Smart Phones Airport Check-In Kiosk Grocery Store Self Check Out ATM’s

Modem A device that sends and receives data to and from computers over telephone/dsl/cable lines. Means (Modulate – Demodulate).

Barcode Reader A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.

Biometric Device The use of special input devices to analyze some physical parameter assumed to be unique to an individual, in order to confirm their identity as part of an authentication procedure. Types of Biometric Devices: Fingerprint Scanning Iris Recognition Voice Recognition Facial Recognition

KVM Switch KVM stands for "Keyboard, Video, Mouse." A KVM switch connects one keyboard, one mouse and one video display to multiple computers. This allows users to control multiple computers with only a single set of input and output devices.

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