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…
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…
Binary System and ALU Logic Operation

ALU Analog Value Analog quantity has continuous values.Most of the things in nature appear in analog form. Temperature never goes from 30 to 31 instantly.It takes infinite steps. If we draw a graphical representation, it will give us a continuous…
Introduction to Computing

Computer. Computer is an electronic device that perform computing Operates under the control of instructions (Software) Accept data as input. Manipulate data as per instructions. Generates information Computer Characteristics Fast Computer can process data with amazing speed Reliable Computer has…
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 +…
Network Components

Network Components Data It is the information stored and processed by a computer. Node Every device on a network which has a unique logical address or IP. Client A client is a node which takes services from another node. Server…
Computer Ports

  Computer Ports Computer ports or Motherboard I/O interfaces are used to connect external devices to the computer. These interfaces are mostly located on the back side of the motherboard. Number of Interfaces depends on the size of Motherboard and technology…
Multiplexing

  Multiplexing Multiplexing is a technique which allows sending multiple signals over a single data link. In simple words, Sharing of the medium between multiple signals. Topic. What is Multiplexing (MUX)? What is Demultiplexing? MUX types. FDM Frequency division MUX.…
WiFi Wireless Fidelity

Wireless Fidelity. Th Brand name “WiFi” is used by WiFi alliance to describe WLAN products which follow IEEE 802.11 specification. WiFi Alliance. “Wi-Fi CERTIFIED” is a brand name of WiFi Alliance. It ensures the devices of different vendors are inter operable.…
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…
PDH Plesiochronous Digital Hierarchy

PDH Plesiochronous Digital Hierarchy PCM Pulse code modulation is the basic block for PDH SDH and SONET. Sampling frequency must be twice the higher frequency component of the signal. Voice frequency sampling rate 8KHz (0.3 to 3.4 KHz = 4KHz). Each…