| Acronym | Meaning |
| SET | Secure Electronic Transaction |
| ACU | Automatic Calling Unit |
| SMS | Systems Management Server |
| POST | Power On Self Test |
| MPC | Multimedia Personal Computer |
| ACD | Automatic Call Distributor |
| ALU | Arithmetic (and) Logic Unit |
| RISC | Reduced Instruction-Set Computing |
| MMDS | Multichannel Multipoint Distribution System |
| NETBEUI | Network BIOS Extended User Interface |