A telephone jack and a telephone plug are electrical connectors for connecting a telephone set or other telecommunications apparatus to the telephone wiring inside a building
Data Cabling is a method of connecting multiple devices e.g PC's, Printers, CCTV cameras, servers within an IT network. There are mainly two types of data cable, copper and fibre.
PROJECTOR SCREEN SETUP
A powerful lamp generates white light at the back of the projector. ... A lens collects and focuses the light from the DMD chip and projects it onto the projection screen on the wall.