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Chapter 8 Vocabulary 2
Chapter 8 Vocabulary 2 Hornet Tech
18
Computer Science
9th Grade
01/13/2015

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Term
USB 3.0 B-Male connector
Definition

A USB connector used by SuperSpeed USB 3.0 devices such as printers or scanners.

Term
USB 3.0 Micro-B connector
Definition

A small USB connector used by SuperSpeed USB 3.0 devices. The connectors are not compatible with regular Micro-B connectors.

Term
barcode reader
Definition

Used to scan barcodes on products at the points of sale or when taking inventory.

Term
biometric device
Definition
An input device that inputs biological data about a person; the data can identify a person’s fingerprints, handprints, face, voice, eye, and handwriting.
Term
composite video port
Definition
A port used by television or by a video card that is designed to send output to a TV.  This port is round and has only a single pin in the center of the port.
Term
DVD (digital versatile disc or digital video disc)
Definition

 

A technology used by optical discs that uses a red laser beam and can hold up to 17 GB of data.

 

Term
CD (compact disc)
Definition
An optical disc technology that uses a red laser beam and can hold up to 700 MB of data.
Term
Blu-ray Disc (BD)
Definition
An optical disc technology that uses the UDF version 2.5 file system and a blue laser beam, which is shorter than any red beam used by DVD or CD discs. The shorter blue laser beam allows these discs to store more data than a DVD.
Term
graphics tablet
Definition
An input device that can use a stylus to hand draw. It uses a USB port.
Term
Secure Digital (SD) card
Definition
A type of memory card used in digital cameras, tablets, cell phones, MP3 players, digital camcorders, and other portable devices.
Term
Stylus
Definition
A device that is included with a graphics tablet that works like a pencil on the tablet.
Term
touch screen
Definition
An input device that uses a monitor or LCD panel as a backdrop for user options. These can be embedded in a monitor or LCD panel or installed as an add-on device over the monitor screen.
Term
TV tuner card
Definition

 

An adapter card that receives a TV signal and displays TV on the computer screen.

 

Term
CRT (cathode-ray tube) monitor
Definition
A type of monitor first used in older television sets.
Term
LCD (Liquid Crystal Display) monitor
Definition
A monitor that uses LCD technology. It produces an image using a liquid crystal material made of large, easily polarized molecules. they are flatter than CRT monitors and take up less desk space. Also called a flat-panel monitor.
Term
Pixel
Definition
A small spot on a fine horizontal scan line. They are illuminated to create an image on the monitor.
Term
plasma monitor
Definition
A type of monitor that provides high contrast with better color than LCD monitors. They work by discharging xenon and neon plasma on flat glass, and don’t contain mercury.
Term
contrast ratio
Definition

The contrast between true black and true white on a screen.

 

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