HID lamps or High-intensity discharge lamps produce light by striking an electrical arc across tungsten (Wolfram) electrodes housed inside a specially designed inner fused quartz or fused alumina tube. This tube is filled with both gas & metals. The gas ...

The EPROM was very important in the development of microcomputers because it gave the designer a way to load his custom program (like bios) into non-volatile memory. This program would always be ready to run at start up and not ...