| Abbreviation | Definition |
|---|---|
| HP | Half Precision |
| HP | High Precision |
| HPA | High Performance Addressing |
| HPAC | Holy Pentecostal Assembly Churches |
| HRPR | Hang up and Ruin Printer Ribbon |
| HS | Heading Section |
| HTC | Halt and Toss Cookies |
| HTS | Halt and Throw Sparks |
| HYA | Hyderabad Youth Assembly |
| IA | Insert Attribute |
| IA | Integration Assembly |
| IA | Invalid Argument |
| IAC | Interpret As Command |
| IAS | Insert After Sequence |
| IBA | Input Bit Address |
| IBLU | Ignore Basic Laws of the Universe |
| IBP | Insert Bug and Proceed |
| IC | If Case |
| IC | Ignore Case |
| IC | Insert Character |