Pulse Code Modulation PCM

Pulse Code Modulation PCM Pulse code modulation is a technique, which is used to convert an analog signal into digital signal. PCM is the preferred method of communication within the public switched telephone network (PSTN). It is an old but widely…
Ubiquitous computing

Ubiquitous Computing. This concept is not new but now it is getting famous.It is taking us in the world of automation.Before getting its concept, you need to clear that What is a computer? Here we will discuss the basic definition of the computer.
T1 and E1 Lines

E1 and T1 Lines E1 and T1 standards are basically introduced for voice communication. Both are using TDM for frame formation. In this video, we will discuss the digital transmission advantages and disadvantages. Basic concept about Modulation, Multiplexing, and PCM is…
OSI Reference Model

OSI Reference Model In the beginning, when networks established, devices can communicate with devices of the same manufacturer.OSI (open system interconnection) reference model was first introduced by ISO (international organization for standardization).Its main purpose is to facilitate communication between two systems…
Communication System Fundamentals

Communication System Fundamentals Our Target Communication Channel or medium or media Frequency Wavelength Modulation Demodulation Baseband and Broadband Noise Attenuation Communication Communication is the process of exchanging information Electronic Communication A communication which takes place in the form of electronic…
Internet of Things IoT

INTERNET OF THINGS IoT IoT is a system to interconnect different devices, machines, animal, and people.All things are able to communicate over the internet.It will bring automation in everything.In simple words, you can say it is “interconnection of things”.
Optical Fiber

OPTICAL FIBER Optical fiber is a type of guided medium to transport information from one point to another point.Information travels in the form of light.Data capacity of fiber is very high due to light nature of the signal.It has some…