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Input

any data and instructipons entered into the memory of a computer.

Data

a collection of unprocessed items, including text, numbers, images, audio and video.

Program

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

Command

an instruction that causes a program to perform a specific action.

User Response

an instruction a user issues by replying to a question displayed by a program.

Input Device

any hardware component that allows users to enter data and instructions (programs, commands, and user responses) into a computer.

Keyboard

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

Enhanced Keyboard

has twelve or more function keys along the top; it also has two CTRL keys, two ALT keys and a set of arrow and additional keyes between the typing area and the numeric keypad.

Function Keys

keys that are labeled with the letter F followed by a number, are special keys programmed to issue commands to a computer.

Toggle Key

a key that switches between two states each time the user presses the key.

Insertion Point

also known as a cursor in some programs, is a symbol on the screen, usually blinking vertical bar, that indicates where the next character you type will appear.

Gaming Keyboard

a keyboard designed specifically for users who enjoy playing games on the computer.

Wireless Keyboard

a battery-powered device that transmits data to the system unit using wireless technology, such as radiowaves (bluetooth) or infared light waves (IrDA)

Ergonomic Keyboard

has a design that reduces the chances of wrist and hand injuries.

Ergonomics

the goal of __________ is to incorporate comfort, efficiency, and safety in the design of the workplace.

Predictive Text Input

where you press one key on the keypad for each letter in a word, and software on the phone predicts the word you want.

Pointing Device

an input device that allows a user to control a pointer on the screen.

Pointer

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

Mouse

a pointing device that fits under the palm of your hand comfortably.

Optical Mouse

Uses devices that emit a sense light to detect the mouse's movement.

Air Mouse

Motion-sensing mouse that, in addition to typical buttons, allows you to control objects, media players, and slide shows by moving the mouse in predetermined directions through the air.

Trackball

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

Touchpad

a small, flat, rectangular pointing device that is sensitve to pressure and motion.

Pointing Stick

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

Touch Screen

A touch-sensitive display device.

Touch-Sensitive Pad

An input device that enables users to scroll through and play music, view pictures, watch videos or movies, adjust volume, and/or customize settings

Pen Input

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

Digital Pen

A ________ which is slightly larger than a stylus, featuring electronic erasers and programmable buttons.

Signature Capture Pad

To capture a handwritten signature, a user writes his or her name on a _______ ________ _______ with a stylus or pen that is attached to the device.

Graphics Tablet

A flat, rectangular, electronic, plastic board.

Portable Keyboard

A full sized keyboard that communicates with a smart phone or PDA.

Game Controller

The input device that directs movements and actions of on-screen objects used by video games and computer games.

Gamepad

Held with both hands, controls the movement and actions of players or objects in video games or computer games.

Joystick

A handheld vertical lever mounted on a base.

Wheel

A steering-wheel-type input device.

Light Gun

Used to shoot targets and moving objects after you pull the trigger on the weapon.

Dance Pad

A flat electronic device divided into panels that users press with their feet in response to instructions from a music video game.

Motion-Sensing Game Controller

Allow the user to guide on-screen elements by moving a hand-held input device in predetermined directions through the air.

Digital Camera

A mobile device that allows users to take pictures and store the photographed images digitally, instead of traditional film.

Resolution

the number of horizontal and vertical pizels in a display device.

Optical Resolution

The actual photographed resolution

Voice Input

the process of entering input by speaking into a microphone.

Voice Recognition

also called speech recognition - is the computer's capability of distinguishing spoken words.

Audio Input

The process of entering any sound into the computer such as speech, music and sound effects.

Video Input

The process of caputring full-motion images and storing tem on a computer's storage medium such as hard disk or optical disc.

Digital Video Camera

records video as digital signals instead of analog signals.

Web cam

also called a PC video camera, is a type of digital video camera that enables a home or small business user to capture video and still images, send email mesages wtih video attachments, add live images to instant messages, broadcast live images over the internet, and make video telephone calls.

Video Conference

a meeting between two or more geographically separated people who use a network or the Internet to transmit audio and video data.

Scanner

A light-sensitive input device that reads printed text and graphics and then translates the results into a form the computer can process.

Flatbed Scanner

Works in a manner similar to a copy machine except it creates a file of the document in memory instead of a paper copy.

Optical Character Recognition

A technology that involves reading typewritten, comptuer printed, or hand-printed characters from ordinary documents and translating the images into a form that the computer can process.

OCR Devices

include a small optical scanner, for reading characters and sophisticated sofware to analyz what is read.

Turnaround Document

A document that you return (turn around) to the company that creates and sends it.

Optical Mark Recognition

a technology that reads hand-drawn marks such as small circles or rectangles.

Bar code reader

an optical reading that uses laser beams to read barcodes by using light patterns that pass through the bar code lines.

Bar code

an identification code that consists of either a set of vertical lines and spaces of different widths or a two-dimensional pattern of dots, squares, and other images.

Radio Frequency Identification

A technology that uses radio signalse to communicate wtih a tag placed in or attached to an objects, an animal or a person.

RFID reader

reads iformation on the tag via radio waves.

Magnetic Stripe Card Reader

often called a magstripe reader reads the magnetic stripe on the back of credit cards, entertainment cards, bank cards and other similar cards.

Magnetic-Ink Character Recongition

read text printed w/ magnetized ink

MICR reader

converts MICR characters into a form the computer can process

Fingerprint Reader

captures curves and indentaitons of a fingerprint

POS Terminal

to record purchases, proces credit or debit cards and update inventory.

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