CD-ROM Abbreviation for Compact Disc Read Only Memory, can store a large amount of data in digital form, including e.g. sound and video. Client A computer or program that has access to services provided by a server over a computer network. Codec Short for coder-decoder, hardware that codes and decodes signals. In videocinferencing , the codec converts the outgoing analog signals to digital signals and compresses the result before transmission, and decompresses the incoming signals and converts them back to analog form. Reducing the amount of data units required to represent information, necessary especially when transmitting video.
Decompression reverses the result of compression.
Compressed video Video signals compressed in order to reduce the bandwidth needed for transmission. Some information is sacrificed in the process, which may result in lower quality. The 16 kbps ISDN channel for transmitting transmission control information. See also B channel . Decompression Reversing the result of compression .