Audio/Video Transmission

A digital signal travels on a line at a speed depending on the size (capacity) of the line. If the line is not large enough for full motion then the picture is updated at a slower rate. This causes those jerky motions we often see with low bandwidth systems. However the signal can be distributed over multiple lines. Each line can carry 128 KB/sec of data. In order to get full motion, most systems require three lines or 384 kb/sec of bandwidth. At 384 KB/sec bandwidth we achieve full motion, a better picture and higher quality audio.

Another problem is that computers connected to the Internet are able to listen to any other computers, making security a concern. However, technology has improved and security is less of a problem with the use of password protection and encryption.