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Speakers


SPEAKERS
Speakers are one of the most common output devices used with computer systems.
Speakers are transducers that convert electromagnetic waves into sound waves.

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Plotter

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PLOTTER
A graphics printer that draws images with ink pens. It actually draws point-to-point lines directly from vector graphics files. The plotter was the first computer output device that could print graphics as well as accommodate full-size engineering and architectural drawings.
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Printer


PRINTER

A printer is an output device that prints paper documents. This includes text documents, images, or a combination of both 

•Inkjet Printers
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Monitor


MONITOR

A monitor or a display is an electronic visual display for computers. The monitor comprises the display device, circuitry and an enclosure. The display device in modern monitors is typically a thin film  transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used a cathode ray tube (CRT) about as deep as the screen size.

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Mic


MICROPHONE
microphone  an instrument capable of transforming sound waves into changes in electric currents or voltage, used in recording or transmitting sound.
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Trackball


TRACKBALL

A trackball is a computer cursor control device used in many notebook and laptop computers. The trackball is usually located in front of the keyboard toward the  user. Essentially, the trackball is an upside-down mouse that rotates in place within a socket. The user rolls the ball to direct the cursor to the desired place on the screen and can click one of two buttons (identical to mouse buttons) near the trackball to select desktop objects or position the cursor for text entry.
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Trackpad


TRACKPAD
A trackpad is a pointing device featuring a tactile sensor, a specialized surface that can translate the  motion and position of a user's fingers to a relative position on the operating system that is outputted to the screen. Touchpads are a common feature of laptop computers, and are also used as a substitute for a mouse where desk space is scarce.



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