Grass Valley PROFILE FAMILY v.2.5 - Manual (Page 368)

Glossary
368 Profile Family
CODEC
CODEC is an acronym for Coder/Decoder, the link between JPEG
component parallel digital video and the SCSI-2 channel. The CODEC
compresses the video data to a rate that is commensurate with the available
disk bandwidth. Conversely, the CODEC decompresses the video data
coming from the SCSI-2 channel back to 8-bit component parallel digital
video.
The Profile video disk recorder translates digital video data between CCIR
601 digital component and compressed motion JPEG for storage on hard
disk.
Command line
The line that you type to invoke a program or initiate an action. A command
line usually contains the application program name, along with optional
arguments known as command-line options.
Composite video
A single video signal composed of combined luminance and chrominance
information.
Component video
Typically the transmission or storage of video as a separate luminance and
chrominance information, such as Y, B–Y, R–Y.
Compression, video
A technique for reducing the amount of space needed to store images or
sequences of images. JPEG, Motion-JPEG (M-JPEG) and MPEG are
examples of video compression techniques.
Data cartridge
A digital tape cartridge that is capable of storing media in large quantities.
dB
Decibel. In theory, the minimum change in sound intensity that the human
ear can distinguish; also, a relative unit used to compare the strength of
acoustic signals.