| Abbreviation | Definition |
|---|---|
| IR | Interface Region |
| IRD | Integrated Receiver/Decoder |
| IRL | Integrated Reader Lock |
| IRM | InfraRed Monitor |
| IROC | Integrated Robustness On a Chip |
| ISA | Input Signal Amplifier |
| ISB | Instruction Stream Buffer |
| ISB | Intelink Security Board |
| ISCO | Industry Smart Card Object |
| ISCSI | Internet Small Computer System Interface |
| ISD | Information Storage Device |
| ISDL | Instruction Set Description Language |
| ISE | Integrated Storage Element |
| ISFP | In-System Flash Programming |
| ISMD | Internet Service Management Device |
| ISP | Image Signal Processor |
| ISP | Instruction Set Processor |
| ISP | Internal System Performance |
| ISR | Internet Service Router |
| ISS | Industry Standard Server |