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TLA: /T-L-A/ [Three-Letter Acronym] n. 1. Self-describing
   abbreviation for a species with which computing terminology is
   infested.  2. Any confusing acronym.  Examples include MCA, FTP,
   SNA, CPU, MMU, SCCS, DMU, FPU, NNTP, TLA.  People who like this
   looser usage argue that not all TLAs have three letters, just as
   not all four-letter words have four letters.  One also hears of
   `ETLA' (Extended Three-Letter Acronym, pronounced /ee tee el
   ay/) being used to describe four-letter acronyms.  The term
   `SFLA' (Stupid Four-Letter Acronym) has also been reported.  See
   also YABA.

The self-effacing phrase "TDM TLA" (Too Damn Many...) is often used to bemoan the plethora of TLAs in use. In 1989, a random of the journalistic persuasion asked hacker Paul Boutin "What do you think will be the biggest problem in computing in the 90s?" Paul's straight-faced response: "There are only 17,000 three-letter acronyms." (To be exact, there are 26^3 = 17,576.)