| Abbreviation | Definition |
|---|---|
| I/O | Input/Output |
| I2S | Inter-IC Sound |
| IA | Information Appliance |
| IA | Intel AMD (computer architecture) |
| IA | Intel Architecture |
| IA | Interface Adapter |
| IA | Internet Appliance |
| IA-32 | Intel 32-bit Architecture |
| IA-64 | Intel 64-bit Architecture |
| IALU | Integer Arithmetic Logic Unit |
| IAS | Immediate Access Storage |
| IB | Input Buffer |
| IB | Installed Base |
| IBC | Integrated Business Computer |
| IBC | Inter-Board Connector |
| IBE | Intelligent Buswidth Expander |
| IBF | iSCSI Boot Firmware |
| IBFT | iSCSI Boot Firmware Table |
| IBIS | Internet-Based Imaging System |
| IBT | InterBus Transformer |