| F |
Farad, Fahrenheit or force |
| ƒ |
Frequency |
| f.r. |
Frequency response or range |
| FTP |
File Transfer Protocol/Foil (s |
| G |
Giga (10g) |
| g |
Grid, gravitational constant, |
| G |
Gram |
| GHz |
Giga Hertz |
| H |
Henry |
| h.f. |
High frequency |
| HEX |
Hexagonal |
| Hg |
Mercury |
| hr |
Hour |
| HTML |
Hyper Text Mark-up Language |
| Hz |
Hertz (cycles per second) |
| I |
Current |
| IC |
Integrated circuit |
| I/O |
Input / Output |
| I/P |
Input |
| IEEE |
The Institute of Electrical & |
| IIL |
Integrated injection logic |
| in |
Inch (unit of Length ) |
| in wg |
Inches Water Gauge |
| IP |
Ingress Protection ( IEC stand |
| IR |
Infra-Red |
| ISO |
International Standardisation |
| JPEG |
Joint Photographic Experts Gro |
