Lectures Club

In a data communication system a signal is basically a physical form of data. The physical layer of the OSI model converts the data in the form of signals. Two nodes in a communication system exchange data in the form of signals. For example in wireless communication the signal propagation is done via electromagnetic waves […]

Mosfet Definition MOSFET is another type of transistor which is a sub-category of field effect transistor. MOSFET full form is “ Metal Oxide Semiconductor Field Effect Transistor”. Just like JFET, it has three terminals gate (G), source (S) and drain (D). There is an insulating layer of silicon dioxide (SiO2) between the gate and the […]

Electric Current Definition Electric current meaning is the movement of free electrons from one point to another. An electron in an atom has an electric charge but it can’t contribute in the electric current until it leaves the atom (Read My Lecture on Electronics Materials to clear this concept). In this lecture I will try […]

Static IP address or static internet protocol address is a permanent address allocated to a host or computer in the network. This is also called fixed IP. How do static IP addresses work? A host with fixed IP address does not change its IP address whenever it goes online. I mean even if you go […]

Multiplexing Definition In the field of telecommunication multiplexing or multiple access is the method of sharing a channel to many users. So the users get minimum or no interference. Need of Multiplexing Multiplexing is the basis of today’s communication networks. Multiplexing is done to avoid interference and for maximum utilisation of the channel. There is […]