| Acronym | Meaning |
| MVS | Multiple Virtual Storage |
| OOP | Object-Oriented Programming |
| HP-GL | Hewlett-Packard Graphics Language |
| WNIU | Wireless Network Interface Unit |
| OSF | Open Software Foundation |
| HTTP | Hypertext Transfer Protocol |
| DLL | Dynamic Link Library |
| MICR | Magnetic Ink Character Recognition (Reader) |
| ABEND | Abnormal End |
| ARP | Address Resolution Protocol |