Shared Flashcard Set

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CompTia A+
Chapter 10 - Guide to Managing and Maintaining Your PC
22
Computer Networking
Professional
02/28/2013

Additional Computer Networking Flashcards

 


 

Cards

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 Blu-ray discs to store more data than a DVD.
Term
card reader
Definition
See media reader. A device that provides slots for memory cards and can be an internal or external device. Also called a card reader or memory card reader/writer.
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
CDFS (Compact Disc File System)
Definition
The 32-bit file system for CD discs and some CD-R and CD-RW discs. See also Universal Disk Format (UDF).
Term
constant linear velocity (CLV)
Definition
A CD-ROM format in which the spacing of data is consistent on the CD, but the speed of the disc varies depending on whether the data being read is near the center or the edge of the disc.
Term
data cartridge
Definition
A type of tape medium typically used for backups. Full-sized data cartridges are 4 x 6 x1/2 inches in size. A minicartridge is only 3 x 2 x3/5 inches.
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
half-life
Definition
The time it takes for the strength of a storage media to weaken by half. Also called life expectancy or shelf life.
Term
JPEG (Joint Photographic Experts Group)
Definition
A graphical compression scheme that allows the user to control the amount of data that is averaged and sacrificed as file size is reduced. It is a common Internet file format. Most JPEG files have a .jpg extension.
Term
lands
Definition
Microscopic flat areas on the surface of a CD
or DVD that separate pits. Lands and pits are used to represent data on the disk.
Term
media reader
Definition
A device that provides slots for memory cards and can be an internal or external device. Also called a card reader or memory card reader/writer.
Term
memory card reader/writer
Definition
See media reader. A device that provides slots for memory cards and can be an internal or external device. Also called a card reader or memory card reader/writer.
Term
MIDI (musical instrument digital interface)
Definition
A set of standards that are used to represent music in digital form. A MIDI port is a 5-pin DIN port that looks like a keyboard port, only larger.
Term
minicartridge
Definition
A tape drive cartridge that is only 3 1/4 x 2 1/2 x 3/5 inches. It is small enough to allow two drives to fit into a standard 5 1/5-inch drive bay of a PC case.
Term
MP3
Definition
A method to compress audio files that uses MPEG level 1. It can reduce sound files as low as a 1:24 ratio without losing much sound quality.
Term
pits
Definition
Recessed areas on the surface of a CD or DVD, separating lands, or flat areas. Lands and pits are used to represent data on a disc.
Term
sequential access
Definition
A method of data access used by tape drives, whereby data is written or read sequentially from the beginning to the end of the tape or until the desired data is found.
Term
surround sound
Definition
A sound compression standard that supports up to 10 different speakers, each producing a different sound. Also known Dolby AC-3, Dolby Digital Surround, or Dolby Surround Sound.
Term
TIFF (tagged image file format)
Definition
A bitmapped file format used to hold photographs, graphics, and screen captures. TIFF files can be rather large, and have a .tif file extension.
Term
TV tuner card
Definition
An adapter card that receives a TV signal and displays TV on the computer screen.
Term
UDF (Universal Disk Format) file system
Definition
See Universal Disk Format (UDF) file system. A file system for optical media used by all DVD discs and some CD-R and CD-RW discs.
Term
video capture card
Definition
An adapter card that captures video input and saves it to a file on the hard drive.
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