| Acronym | Meaning |
| MAPI | Messaging Application Programming Interface |
| API | Application Program(ming) Interface |
| SMP | Simple Management Protocol |
| GPRS | General Packet Radio Service |
| VBNS | Very High-speed Backbone Network Service |
| XDSL | X Digital Subscriber Line |
| ELD | Electroluminescent Display |
| IGMP | Internet Group Management Protocol |
| UUENCODE | UNIX-to-UNIX Encode |
| DB2 | Database 2 |