|
 |
 |
| I I | Installation Inspection | |
| I v | Inverter | |
| I&C | Installation and Checkout | |
| I/F | Interface | |
| I/O | Input/Output | |
| I/T(V) | Inverted-T(V) Antenna | |
| IACS | Integrated Acoustic Communication System | |
| IAGC | Instantaneous Automatic Gain Control | |
| IAS | Indicated Air Speed | |
| IAW | In Accordance With | |
| IC | Integrated Circuit | |
| ICAO | International Civil Aviation Organisation | |
| ICBM | Intercontinental Ballistic Missile | |
| ICI | Inter Computer Interface | |
| ICM | Inter Computer Message | |
| ICMP | SW | Internet Control Message Protocol |
| ICS | Integrated Communications System | |
| ICW | Interrupted Continuous Wave | |
| Id | Track Identity | |
| ID/Ident | Identity | |
| IDA | Intercommunication Data Areas | |
| IDE | Integrated Drive Electronics | |
| IDE | Integrated Development Environment | |
| IDP | Integrated Data Processing | |
| IDR | Initial Design Requirements | |
| IDS | Integrated Data Store | |
| IEC | International Electrotechnical Commission | |
| IECCA | Inter-Establishment Committee on Computer Applications | |
| IEEE | Institute of Electrical & Electronic Engineers | |
| IEG | Information Exchange Group | |
| IF | Intermediate Frequency | |
| IFF | Identification Friend or Foe | |
| IFR | Instrument Flight Rules/Internal Function Manager | |
| IFRU | Interference Frequency Rejection Unit | |
| IG | Insulated Gate | |
| IGDS | Integrated Graduate Development Scheme | |
| IJMS | Interim Joint Tactical Information Distribution System Message Standard | |
| Illum | Illuminate | |
| ILS | Instrument Landing System | |
| ILS | Integrated Logistics System | |
| IMC | Image Motion Compensation | |
| IMO | Interband Magnetic Optical Effect | |
| Inc | Increment | |
| Incl | Including | |
| Inclin | Inclination | |
| Incre | Increment | |
| Ind | Indicate | |
| Indep | Independant | |
| Inf | Informative | |
| Info | Information | |
| INFOF | Individual Ship Information Function | |
| Init | Initiate/Initiation | |
| Inj | Inject | |
| INMARSAT | International Maritime Satellite Organisation | |
| INS | Inertial Navigation System | |
| INS | Inertial Navigation System | |
| Instrn | Instruction | |
| Int | Internal/lntercept | |
| Intel | Intelligence | |
| INTELLECT | Information Technology Telecommunications and Electronics Association (formerly FEI and CSSA) | |
| Intrg | Interrogate | |
| Intv | Interval | |
| IOB | Input/Output Buffer | |
| IOC | Input/Output Controller | |
| IP | Internet Protocol | |
| IP | Information Processing | |
| IPC | Information Processing Centre/Industrial Process Control | |
| IPR | Intellectual Property Rights | |
| IPT | Integrated Product Teams | |
| IR | Information Retrieval/Infra Red | |
| IRCU | Instructors Remote Control Unit | |
| IRLS | Infra-Red Line Scan | |
| IRQ | Interrupt Request | |
| IRSS | Infra Red Surveillance System | |
| IRSTDS | Infra Red Surveillance and Target Designation System | |
| IS0 | International Standards Organisation | |
| ISA | Integrated Support Area | |
| IS'-Band | 2.0-4.0 GHz Radar Band | |
| ISD | Initial Search Depth | |
| ISDN | Integrated Services digital Network | |
| ISO | International Organisation for Standardisation | |
| ISR | Interrupt Service Routine | |
| ISR | Identification Safety Range | |
| ISS | Indirect Sub System | |
| IT | Input Translator/Item Transfer | |
| IT | Information Technology | |
| ITA | International Teleprinter Alphabet | |
| ITB | Initial Torpedo Bearing | |
| ITL | Intention to Launch (of SSM) | |
| ITOM | Integrated Technology Obsolescence Management | |
| ITT | Invitation to Tender | |
| ITU | International Telecommunication Union | |
| IWGDE | Interlaboratory Working Group for Data Exchange | |
| JAA | European Joint Aviation Authorities | |
| JAAWSC | Joint Anti-Air Warfare Shore Co-ordination (net) | |
| JAN | Joint Army and Navy | |
| JATFC | Joint Amphibious Task Force Commander | |
| JB | Junction Box | |
| J'-Band | 11.5-10.0 GHz Radar Band | |
| JEDEC | Joint Electronics Device Engineering Council | |
| JEZEBEL | A System of Passive Detection | |
| JFHQ | Joint Force Headquarters | |
| JIS | Japanese Industrial Standard | |
| JIT | Just In Time | |
| JJA(1) | Display Console -CACS(1) | |
| JSF | Joint Strike Fighter | |
| JTIDS | Joint Tactical Information Distribution System | |
| K | Kelvin | |
| K/B | Keyboard | |
| KAPSE | Kernel Ada Program Support Environment | |
| Kbps | Kilo Bits Per Second | |
| KBS | Knowledge Based System | |
| kc/s | Kilocycles Per Second | |
| KG | US Cryptographic Equipment Designator | |
| KGD | Known Good Die | |
| KHz | Kilohertz (103 Hz) | |
| KISS | Keep It Simple, Stupid. | |
| Km | Kilometre | |
| KOH | Potassium Hydroxide | |
| Kt | Knot | |
| Kton | Kiloton | |
| KTP | Knowledge Transfer Partnership | |
| KW | US Cryptographic Equipment Designator | |
| KY | US Cryptographic Equipment Designator | |
| KZ | Killing Zone | |
| LMS | Level Measuring Set | |
| LMT | Local Mean Time | |
| LMTD | Logarithmic Mean Temperature Difference | |
| Ln | Line | |
| Lnchr | Launcher | |
| LOC | Location | |
| LOFAR | Low Frequency Analysis Recorder | |
| LOG | Logarithmic or Linear/Moving Target Indicator Video | |
| Log Admin | Logistics and Administration | |
| LOGANDS | Logical Commands | |
| LOGF | Logistic Function | |
| LOGRAMS | Logical Programme | |
| Long | Longitude | |
| LOP | Local Operations Plot/Line of Position | |
| LOS | Line of Sight | |
| LOS | Line of Sight/Loss of Signal | |
| LP | Light Pen | |
| LPD | Label Plan Display/Landing Platform Dock | |
| LPI | Low Probability of Intercept | |
| LR | Level Recorder | |
| LRD | Labelled Radar Display | |
| LRD | Long Range Data/Labelled Radar Display | |
| LRMP | Long Range Maritime Patrol (Aircraft) | |
| LRMP | Long Range Maritime Patrol | |
| Ls | Loudspeaker/Line Scan | |
| LS(EW) | Leading Seaman (Electronic Warfare) | |
| LS(M) | Leading Seaman (Missile) | |
| LS(R) | Leading Seaman (Radar) | |
| LS(S) | Leading Seaman (Sonar) | |
| LSB | Least Significant Bit | |
| LSC | Learning Skills Council | |
| LSD | Dock Landing Ship | |
| LSI | Large Scale Integration | |
| LSL | Landing Ship Logistic | |
| LST | Landing Ship (Tanks) | |
| Lst | List | |
| Lt | Limit | |
| LT | Low Tension/Lower Threshold | |
| LTB | Last Time Buy/Life Time Buy | |
| LUHF | Lowest Useful High-Frequency Radio Wave | |
| LV | Low Voltage | |
| LVDS | Low Voltage Differential Signal | |
| LVPS | Low Voltage Power Supply | |
| LW | Long Wave | |
| LZ | Landing Zone | |
| Top | ||