SONET Synchronous Optical Network

SONET Synchronous Optical Network Multiplex electrical signals (Digital) from different sources and creates optical carrier (OC). USA, CANADA and JAPAN developed T1 Standard. ANSI develop  SONET. The rest of the world uses a primary rate of E1. ITU-T develop  SDH.…
DWDM Dense Wavelength Division Multiplexing

Dense Wavelength Division Multiplexing DWDM Prerequisite Multiplexing Optical Fiber PCM PDH SDH Transmission Fundamental WDM Wavelength division Multiplexing (WDM) technique increase the capacity of signal carrying medium. WDM technique assign different frequency / wavelength value to every incoming signal. These…
Solar System Installation

Solar Panel Installation Basic Components of Solar System Solar Panel Solar Charge controller Inverter Battery Bank Load Calculation 03 energy saver (24 watt) 24*3 = 72 watt + 08 = 80 watt 02 Fan (100 watt) 100*2 = 200 +…
SDH Synchronous Digital Hierarchy

  SDH synchronous digital hierarchy. It is a transmission method. This method is used in optical fibre transmission system called SDH system. We have already discussed the basic concepts of the transmission system. This video will give you the basic concept…
Virus

Computer Virus A virus is a malware/harmful software which infect a computer function. Malware = malicious + Software .A computer virus reside on a host computer. A virus attaches itself to a file. A file containing a virus is called infected file.…
Cloud Computing

Cloud Computing Cloud computing is a computing infrastructure where a large pool of system are connected to internet for application, data and storage services. Pay as per use model Prerequisite:  Operating system, online storage Public Cloud Public clouds are owned…
TeamViewer

Team viewer is a simple software to control / access any PC in the world by using Internet. You can access any Computer, You can transfer files, you can shut down the other PC and many more What is Teamviewer?…
Software

Software Software is the set of instructions which directs the computer hardware to perform a task is called a program or software. System Software System software controls internal functions like data processing, data movement, memory utilization and also control the…
Cloud Storage / Online Storage

Cloud Storage / Online Storage Cloud storage is a model in which data stored on remote servers which are accessible by using internet. These are the storage devices available on Network. Cloud Cloud is a computing infrastructure located anywhere in the…
VoIP Voice Over Internet Protocol

VoIP Voice Over Internet Protocol   Topics PSTN VoIP VoIP Architecture Codec VoIP Gateway Signalling Protocols VoIP Terminals Advantages and Disadvantages PSTN Public Switched Telephone Network It is known as landline telephone system. It was designed for purely analog voice…
Cryptocurrency

Cryptocurrency Currency is the medium of exchange between two parties.A cryptocurrency is a medium of exchange using cryptography to secure the transactions and to control the creation of new units.First cryptocurrency was introduced in 2009 with the name of bitcoin.…
Operating System Introduction

Operating System It is an interface between computer user and computer hardware. It is the collection of system software used to manage the overall operation of the computer. prerequisite : Introduction to computing Basic Function of an Operating System Control…
Collision Domain and Broadcast Domain

Video Contents Collision Domain Collision domain is a network segment in which collision can happen. It is a part of network where packet collision can occur. Collision domain applies in wireless networks and early version of ethernet networks. Collisions will…