jackfield: A panel on an equipment rack containing rows of audio or video sockets for interconnecting equipment or signal paths. See also patch panel, musa, U-link.
jaggies: Aliasing around the edge of computer graphics characters or images. (Colloq.)
jam sync: Synchronizing a secondary time code generator to a master time code signal. It is used to ensure a clean time code signal is recorded during video editing.
Java: A general purpose platform-independent computer programming language developed by Sun Microsystems in widespread use to create Internet applications. (Website: www.java.sun.com ...