JA        Jump Address , Jump if Above
JAD       Joint Application Design
JAE       Jump if Above or Equal
JANET     Joint Academic Network
JBE       Jump if Below or Equal
JC        Jump if Carry set
JCL       Job Control Language
JDBC      Java Database Connectivity
JDK       Java Development Kit
JE        Jump if Equal
JEDEC     Joint Electronic Devices Engineering Council
JEIDA     Japanese Electronics Industry Development Association
JES       Job Entry System
JFET      Junction Field Effect Transistor
JFIF      JPEG File Interchange Format
JFS       Journaled File System [IBM]
JG        Jump if Greater
JGE       Jump if Greater or Equal
JIPS      JANET Internet Protocol Service
JL        Jump if Less
JLE       Jump if Less than or Equal to
JMP       Jump
JNA       Jump if Not Above
JNAE      Jump if Not Above or Equal
JNB       Jump if Not Below
JNBE      Jump if Not Below or Equal
JNG       Jump if Not Greater
JNGE      Jump if Not Greater or Equal
.JNK      Junk (file name extension)
JNLE      Jump if Not Less or Equal
JNO       Jump if No Overflow
JNP       Jump if No Parity
JNS       Jump if No Sign
JOE       Java Objects Everywhere
JPE       Jump if Parity Even
JPEG      Joint Photographic Experts Group
JPL       Jet Propulsion Laboratory
JPO       Jump if Parity Odd
JS        Jump if Sign
JZ        Jump if Zero
JNZ       Jump if Not Zero
JUGHEAD   Jonzy's Universal Gopher Hierarchy
          Excavation and Display [Internet]