VGA stands for Video Graphics Array, which is a standard type of connection for video devices such as monitors and projectors. VGA is an analog interface between a PC and monitor that was widely used prior to DVI, HDMI, and DisplayPort. It was introduced by IBM in 1987 for its PS/2 line of PCs, replacing the previous digital CGA and EGA interfaces, which had lower resolution and fewer colors. VGA provides 640 x 480 resolution color display screens with a refresh rate of 60 Hz and 16 colors displayed at a time. If the resolution is lowered to 320 x 200, 256 colors are shown. VGA utilizes analog signals, which means its only capable of lower resolutions and a lower quality display on screens.

VGA connectors contain an analog component in addition to a number of pins inside their sockets to transfer data from one device to another. VGA cables and connectors are still used with todays computers, monitors, projectors, and TVs, although they are becoming obsolete and being replaced by the DVI, HDMI, and DisplayPort cables and connectors.

In summary, VGA is a type of connection for video devices that was widely used prior to DVI, HDMI, and DisplayPort. It provides lower resolution and fewer colors compared to newer standards, and it utilizes analog signals. VGA cables and connectors are still used today but are being replaced by newer standards.