| Acronym | Meaning |
| ACES | Asia Cellular Satellite System |
| MICR | Magnetic Ink Character Recognition (Reader) |
| MDIS | Metadata Interchange Specification |
| IBM | International Business Machines |
| CPE | Customer Premises Equipment |
| CDF | Channel Definition Format |
| PGP | Pretty Good Privacy |
| DBMS | Database Management System |
| BITNET | Because Its Time Network |
| TDM | Time Division Multiplexing |