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as an archetype of ugliness even by those who haven't experienced it. See also IBM, fear and loathing. |
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A (poorly documented, naturally) shell simulating JCL syntax is available at the Retrocomputing Museum http://www.ccil.org/retro. |
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JEDR // n. Synonymous with IYFEG. At one time, people in the Usenet newsgroup rec.humor.funny tended to use 'JEDR' instead of IYFEG or 'ethnic'; this stemmed from a public attempt to suppress the group once made by a loser with initials JEDR after he was offended by an ethnic joke posted there. (The practice was retconned by the expanding these initials as 'Joke Ethnic/Denomination/Race'.) After much sound and fury JEDR faded away; this term appears to be doing likewise. JEDR's only permanent effect on the net.culture was to discredit 'sensitivity' arguments for censorship so thoroughly that more recent attempts to raise them have met with immediate and near-universal rejection. |
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JFCL /jif'kl/, /jaf'kl/, /j -fi'kl/ vt., obs. (alt. jfcl) To cancel or annul something. "Why don't you jfcl that out?" The fastest do-nothing instruction on older models of the PDP-10 happened to be JFCL, which stands for "Jump if Flag set and then CLear the flag"; this does something useful, but is a very fast no-operation if no flag is specified. Geoff Goodfellow, one of the Steele-1983 co-authors, had JFCL on the license plate of his BMW for years. Usage: rare except among old-time PDP-10 hackers. |
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jiffy n. 1. The duration of one tick of the system clock on your computer (see tick). Often one AC cycle time (1/60 second in the U.S. and Canada, 1/50 most other places), but more recently 1/100 sec has become common. "The swapper runs every 6 jiffies" means that the virtual memory management routine is executed once for every 6 ticks of the clock, or about ten times a second. 2. Confusingly, the term is sometimes also used for a 1-millisecond wall time interval. Even more confusingly, physicists semijokingly use 'jiffy' to mean the time required for light to travel one foot in a vacuum, which turns out to be close to one nanosecond. 3. Indeterminate time from a few seconds to forever. "I'll do it in a jiffy" means certainly not now and possibly never. This is a bit contrary to the more widespread use of the word. Oppose nano. See also Real Soon Now. |
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job security n. When some piece of code is written in a particularly obscure fashion, and no good reason (such as time or space optimization) can be discovered, it is often said that the programmer was attempting to |
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