jabber. An event that occurs when a device on a network using the {LAT} {protocol} continues to broadcast its availability even though its availability status is known by the network. (1996-05-10) JACAL. {JAffer's Canonical ALgebra} jaccl. An {LR1 grammar} {parser generator} written by Dave Jones at Megatest. (1989-09-08) jack in. To log on to a machine or connect to a network or {BBS}, especially for purposes of entering a {virtual reality} simulation such as a {MUD} or {IRC} (leaving is "jacking out"). This term derives from {cyberpunk} SF, in which it was used for the act of plugging an electrode set into neural sockets in order to interface the brain directly to a virtual reality. It is primarily used by MUD and IRC fans and younger hackers on BBS systems. [{Jargon File}] Jack Kilby. (1924 - 2005-06-20) The electronics engineer who invented the {integrated circuit} in 1958 at {Texas Instruments}. {TI Biography (http://www.ti.com/corp/docs/kilbyctr/jackstclair.shtml)}. [Was the {JK flip-flop} named after him?] (2005-06-22) Jackson method. A proprietary structured method for software analysis, design and programming. (2005-06-22) Jacquard, Joseph-Marie. {Joseph-Marie Jacquard} Jacquard loom. /zhah-kar'/ A mechanical loom, invented by {Joseph-Marie Jacquard} in 1801, which used the holes punched in pasteboard {punch cards} (which see) to control the weaving of patterns in fabric. It was the first machine to use punch cards, although it did no computation based on them. {(http://www.history.rochester.edu/steam/hollerith/loom.htm)}. (1998-10-19) JAD. {Joint Application Design} Or "Joint Application Development". [What is it?] (1995-11-15) JADE. {James' DSSSL Engine}
