You have come upon the archive of information starting with the letter J. For some time CKnow was not collecting acronyms and definitions but now is. This page shows the older entries with links to the current pages. Use the links below to jump to a specific entry in the archive. A more complete list of all current and archived acronyms and definitions is here.

• JBIG = Joint Bi-level Image Experts Group
• JCL = Job Control Language
• JDBC = Java Database Connectivity
• JDK = Java Developers (Development) Kit
• JEIDA = Japan Electronic Industry Development Association
• JFIF = JPEG File Interchange Format
• Joe Job = Use of a fake return address in a spam message
• JOVIAL = Jules' Own Version of the International Algebraic Language
• JPEG = Joint Photographic Experts Group
• Jump Line = A continuation link for split articles