S/PDIF

The Sony/Phillips Digital Interface Format is used for transmitting digital audio. It can carry multiple channels and is often used in home theater systems where HDMI does not carry audio

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RCA

RCA connectors, also called phono connectors, are analog cables and have been used for years to transmit standard definition video and audio. RCA cables for home theater are usually seen in triples: a yellow video jack, and the red and white stereo audio cables.

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HDMI

A High-Definition Multimedia Interface cable is the modern standard for trasmitting high-definition digital video and audio. HDMI cables can carry both standard and 3D video as well as surround sound audio and internet. For this reason, most modern game consoles and televisions use HDMI to interface with computers or set-top boxes.

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Start­up I­tems

Every time your computer starts, the biggest piece of software it turns on is the operating system. However, the operating system loads a lot of other programs that it thinks you will use. These are called startup items and run every time you turn your computer on

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Soft­ware Up­grade

A software upgrade is a major release, intended on adding new features, as well as fixing holes.

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Soft­ware Up­date

A software update is a minor release intended to fix problems with the original software

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Ver­sion Num­ber

The version number is assigned every time a change is made to the software. This helps the computer keep track of how the software works and what kind of instructions it can send.

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La­ser Prin­ter

a laser printer uses toner instead of ink to make images. Laser printers are more expensive to buy, but toner costs much less than ink and can printer much faster

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Prin­ter Car­tridge

a cartridge goes inside an inkjet printer and is filled with a sponge. This sponge holds the ink before it is squirted out the bottom.

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Ink­jet Prin­ter

An inkjet printer uses very fine squirts of ink to make an image on the page. Inkjet printers have a different cartridge for each color, and mixes them in varying amounts to make all the colors

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