| Word | Description |
| Varifocal Lens | A cctv camera lens whose focal length / viewing angle can be manually adjusted to suit the camera view required. Typical Vari Focal lens lengths are: 2.5mm-10mm, 3.5mm-8mm, 5mm-50mm |
| VGA | Video Graphics Array (VGA) refers specifically to the display hardware first introduced with the IBM PS/2 line of computers in 1987, but through its widespread adoption has also come to mean either an analog computer display connector (D Sub 15 pin) or the screen resolution of 640 x 480. |
| Video in-line amplifier | A device providing amplification of a video signal. |