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ch 10-1

Blu-ray Disc (BD) The latest optical storage technology. It uses the UDF version 2.5 file system.
card reader Another name for a media reader. It provides slots for memory cards and can be an internal or external device.
CD A popular storage media for multimedia data. CDs are the most popular way of distributing software.
CDFS (Compact Disc File System) The 32-bit file system for CD discs.
constant linear velocity (CLV) 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.
data cartridge A type of tape medium typically used for backups. Full-sized data cartridges are 4 x 6 x 2 inches in size. A mini-cartridge is only 3 x 2 x 2 inches in size.
DVD (digital video disc or digital versatile disc) A faster, larger CD format that can read older CDs, store over 8 GB of data, and hold full-length motion picture videos.
half-life The time it takes for a medium storing data to weaken to half of its strength. Magnetic media, including traditional hard drives and floppy disks, have a half-life of five to seven years.
JPEG (Joint Photographic Experts Group) 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.
lands 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.
media reader Another name for a card reader. It provides slots for memory cards and can be an internal or external device.
memory card reader/writer Another name for a media reader writer. It provides slots for memory cards and can be an internal or external device.
Created by: Dro
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