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Appendix D • Glossary of Terms
Frame – Refers to a single picture being part of a series. When
the series is viewed at speed, a "moving picture" is created.
Frame rate – The frame rate of a video sequence refers to how
many frames are viewed per second.
Frame Sampling – Customizable frame rate
FTP – Refers to the File Transfer Protocol, a high-level
protocol for transferring files from one device or PC to another.
FTP uses TCP.
Full Motion Video – Video reproduction at 30 frames per
second for NTSC-original signals or 25 frames per second for
PAL-original signals.
Gateway – The term IP Gateway was originally used for
dedicated computers routing packages. Gateway refers now to
an application program that connects two services.
GOP – Refers to the Group Of Pictures, a single MPEG video
random-access unit.
Green Book – The formal standards document for CD-i.
Hub – An electronic device in a network to which multiple
computers connect by usually using twisted pair wiring. A hub
simulates a network that interconnects the attached computers.
The Hub Technology is popular for Ethernets.
Host – Any end-user computer system that connects to a
network. Hosts range in size from PCs to mainframe computers.
HTML – Refers to the Hypertext Markup Language, the format
used in Web-based material.
Hue – The hue of a color describes whether a color is basically
red, orange, yellow, green, etc.
HSI – Refers to Hue Saturation Intensity, a tri-stimulus color
system being based on the parameters of hue, saturation, and
intensity (luminance). It is sometimes also referred to as HSV
(Hue-Saturation-Value).
IEC – Refers to the International Electro technical
Commission, a governing body working with the ISO.
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