Acronymfinder.com lists TX as a rare abbreviation for "transaction", particularly in the context of computers. It use by the Bitcoin protocol may be its best-known application, but I've also found a few other instances. As the Acronym Finder suggests, it seems to be used sparingly at best, and I've found no non-technology-related uses of it.
Does anybody know of an origin or first use of abbreviating "transaction" as "tx"?
Best Answer
I will go with @undefined: the abbreviation TX for internet transaction is borrowed from telegraph abbreviation for transmission, Tx, for an internet transaction involves sending a coded signal from my computer to , say Amazon.com, internet site.