Vacuum tube (VT, electron tube or valve)

A vacuum tube is a device that uses an electron beam to control a flow of electrons in a vacuum. The first vacuum tube was invented in 1904 by John Ambrose Fleming. Vacuum tubes are used in a variety of electronic devices, including televisions, radios, and computer monitors. They are also used in some scientific … Read more

Constrained Application Protocol (CoAP)

The Constrained Application Protocol (CoAP) is a specialized web transfer protocol for use with constrained nodes and networks in the Internet of Things. Constrained nodes have limited resources in terms of memory, power and processing capability, and are often designed for low-cost and low-power operation. CoAP is designed to enable simple, constrained devices to join … Read more