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                                                  What is Computer network topology Design of network Computer Network Topology means the design of network, that is, if you have four computers, the way you connect all the computers or connect them with the help of cables to share files with all of them is called Computer network topology.                                                            Let us understand it in an even easier language, suppose that you have four computers and you want to connect all of them together, then to connect them you will have to take the help of cable or take the help of wireless system. Now all those computers will be connected in one direction or the other as shown in im...

 OSI model layers explanation Friends OSI model layers explanation You must be looking at picture number A (1), in this the OSI model layers explanation has been done well, on one side there is the image of the sender and on the other side there is the image of the receiver. The layer of this model has been prepared on the basis that it is needed, it is basically used for communication, it is a matter of discussion that how many layers are there in it? And what is the first layer? So to understand this, let's look at the image a bit. So let's see there are two parts in the Friends image, one part is the message sender whose name I have given is sender ok, and then there is another part which I have named receiver, yes and now we will see in this that to communicate Whom to touch first, it is obvious that the sender will first open an app, after that with the help of that app he will prepare a message in text or video format and then send it.  So here the first ...

Switch      Switch is a layer-2 device which is a type of networking device, we can call it the advance version of the bridge. Switch is also an intelligent device, we can also call Switch as multiport bridge because it has many ports which work perfectly.                          Switch is a full duplex device Switch is a multitasking networking device which works very fast full duplex means that it can communicate with all the connected devices at the same time. That is, all computers can exchange messages with each other at the same time or at the same time, can say whatever they want to say to each other, can talk, this is what full duplex means. One more thing is how does it work so well. It works so well because all the ports in it are connected with the help of a thin wire as shown in picture number B ( 1). All ports have a separate c...

|Bridge is a layer- 2 networking device which is a little more intelligent device than hub. This device is connected to many networking segments (a group of computers in which two or more computers are connected in the shape of a bus topology with the help of a cable, the group that is formed is called a network segment) i.e. The way a road is made connecting two villages or cities with the help of a bridge. Communicates two cities. In exactly the same way, it connects a group of two computers and makes them communicate.    There are two ports in the bridge. Port- 1 and Port- 2 | Bridge always inspects the message or traffic and then decides on which port to send this message, after that it decides for which computer this message has come. First he checks, after that the message is sent to that computer.                            There is a drawback in this that when we connect the computer in it...

Today we are going to tell you about the network device. What are network devices called? A device or machine that establishes communication between two computers and mobiles is called a networking device. Types of networking devices 1. What is Hub? 2 . What is Switch? 3. What is Router? 4. What is Repeater? 5. What is Bridge?   Click to know 👉  WHAT IS OSI MODEL  (what is OSI model called)                                                                       HUB (networking device)   Hub  is a first layer device that works on electrical signals and bits. This device is also called half duplex device because when two computers are connected or two devices are connected, then the computer will send a message first, then the computer cannot send the second message, ...

T ypes of computer network 1.         LAN – local area network 2.         MAN – metropolitan area network 3.         WAN- wide area Network We have already talked about LAN in computer network. Now we are only going to talk about MAN and WAN. So let's start 2.MAN :- metropolitan area network This network is similar to just LAN, only it covers a slightly larger area. It covers the whole city. It also has a server, it also has a workstation. There are employees in this network too but their number is more. 4. WAN – Wide Area Network This type of network works over THE COUTRY. Which connects with the help of network SATELLITE. That is, in this our computer is connected to another computer with the help of a SATELLITE. This network would have been world wide, with the help of which companies and internet devices of the whole world would have been connected. Now our netw...