Hack was a bad golf shot - hence hacking;
Mobile was something typically hung up on a ceiling
Binary meant digital
Digital meant numbers (usually on a clock or watch)
Eurobonds referred to debts issued in one country with the bonds denominated in any currency except that country's
PTT used to refer to European post offices and their services
Giros used to be collected from the post office
Telephones used to be rented
QE used to be the first two letters of QED
CD meant Compact Disc. I was shocked to hear it used to mean Certificate of Deposit in NCIS the other day
