<jargon> /eks'ch*/ or /eksch/ To exchange two things, each for the other;
to swap places. If you point to two people sitting down and say "Exch!", you are
asking them to trade places. EXCH, meaning EXCHange, was originally the name of
a PDP-10 instruction that exchanged the contents of a register and a memory
Many newer hackers are probably thinking instead of the PostScript exchange
operator (which is usually written in lowercase).
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EXCH » Exchange Server » excl » exclamation mark