| Abbreviation | Definition |
|---|---|
| IC | Instruction Count |
| IC | Instruction Counter |
| IC | Internal Code |
| ICMD | Initiate Core Melt Down |
| ICR | Interrupt Control Register |
| ICSA | International Crane Stakeholders Assembly |
| ICSZ | Complex Integer Size |
| ICU | International Classes For Unicode |
| ICU | Isa Configuration Utility |
| ICW | Initialization Command Word |
| IDA | Instruction Data Address |
| IDA | Interactive Dis-Assembler |
| IDCA | Integrated Dewar Cooler Assembly |
| IDIV | Integer Divide, Signed |
| IDPS | Ignore Disk Protect Switch |
| IE | Interrupt Enable |
| IEA | International Elite Assembly |
| IEOF | Ignore End Of File |
| IF | Conditional statement (IF, THEN, ELSE) |
| IF | Instruction Fetch |