What does EXCH mean in NASA?
This page is about the meanings of the acronym/abbreviation/shorthand EXCH in the Governmental field in general and in the NASA terminology in particular.
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What does EXCH mean?
- 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 location. Many newer hackers are probably thinking instead of the PostScript exchange operator (which is usually written in lowercase).