abbreviation Technical meaning of JES Job Entry System 3
noun Definition of jes in Technology (operating system) (JES) An IBM mainframe term. There are really two JESs. JES2 is smaller and simpler, and can handle 99.99% of most jobs that run on IBM's MVS operating system. JES3 is much bigger and requires really big iron to run. 1
adverb jes Eye dialect spelling of just, representing African American Vernacular English. 0
