Related:

• flag n. [very common] A variable or quantity that can take on one of two value
  a bit, particularly one that is used to indicate one of two outcomes or is used to control which of two things is to be done....
• mode bit: n. A {flag}, usually in hardware, that selects between two (usually quite different) modes of operation.
  The connotations are different from {flag} bit in that mode bits are mainly written during a boot or set-up phase, are seldom explicitly read, and seldom change over the lifetime of an ordinary program....
• bit n. [from the mainstream meaning and `Binary digIT'] 1.
  [techspeak] The unit of information; the amount of information obtained by asking a yes-or-no question for which the two outcomes are equally probable....
• it: /trit/ [by analogy with `bit'] n. One base-3 digi
  he amount of information conveyed by a selection among one of three equally likely outcomes (see also {bit})....
• flag day: n. A software change that is neither forward- nor backward-compatible, and which is costly to make and costly to reverse.
  Can we install that without causing a flag day for all users?...
• mode bit n. [common] A flag, usually in hardware, that selects between two (usually quite different) modes of operation.
  The connotations are different from flag bit in that mode bits are mainly written during a boot or set-up phase, are seldom explicitly read, and seldom change over the lifetime of an ordinary program....
• bit bashing: n. (alt. `bit diddling' or {bit twiddling}) Term used to describe any of several kinds of low-level programming characterized by manipulation of {bit}
  {flag}, {nybble}, and other smaller-than-character-sized pieces of data...
• it /trit/ n. [by analogy with `bit'] One base-3 digi
  he amount of information conveyed by a selection among one of three equally likely outcomes (see also bit)....
• bit bashing n. (alt. `bit diddling' or bit twiddling) Term used to describe any of several kinds of low- programming characterized by manipulation of bi
  flag, nybble, and other smaller-than-character-sized pieces of data...