XA

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XA, xA, or xa may refer to:

As Initials[edit]

  • Chi Alpha, a Christian college group
  • Extended addressing, a processor architecture first introduced by IBM in 1981 in the System/370 model 3081 mainframe computer
  • eXtended Architecture, a standard for Global Transactions. X/Open_XA
  • eXtended Architecture, a standard for CD-ROM. CD-ROM_XA
  • Abbreviation for the name Christa

Technology[edit]

Politics[edit]