Modem, Router, Switch, Hub: What Is The Difference?

What is the difference between a modem, router, switch and hub? Have you ever heard of some or all of these conditions, but they really do not know how to distinguish? Worked in remote computer repair for several years, many customers in doubt at this point. In this article we will try to make a statement as humanly possible, and trying to present easily a mental picture of how all these things come into play to understand.

Let’s start with the IP address. An IP address is actually a collection of numbers that identifies your computer as an Internet only. It can also be seen for the first time, like this: 192.168.0.100.They consist of four octets, and each can be a value between 0 and 255. The IP address of a computer is basically like a telephone number of a person.

When this system was designed, was not a major concern at this point just how many teams can join. The request was for a military or business, and personal computers were still commonplace.The maximum number of connections possible with this system, 4294967296, seemed quite reasonable at the time.

Now, if you have a computer reasonably modern tools in it for a while, you may find yourself ready for a new tab and Google is the number of people in the world to open. And you would on the right track, there were people in the 2009-6755235700 Google public data scout. 2460264404 This leaves people without an IP address, if every person on earth to a computer.

How do you compensate? Again, we can use a telephone analogy – any group of people who have something in common (or office), just use a different phone extension to any other person in the office. A secretary can answer the main phone number and transfer the call to which you have to talk. The clerk can be called a “router”, and this gives us a pretty clear idea of ​​the function of the router.

Meanwhile, the physical phone itself is the modem. All it does is receive data from the modem of your ISP, usually through a DSL or cable, and converted to the type of interface that computers can understand. How a man can not do without a phone line cut in half and paste it into your ear and listen for a conversation, a computer also has a special device in the data signal can be processed.

It should be noted that in recent years the configuration of your modem and the router is disappearing advocated a single device that serves as the modem and the router. This device is not actually acquire a new name, and is commonly referred to as a role. A good way to know if the device is a modem if the input RJ11 phone cable (DSL) or coaxial (cable). That automatically makes a modem. What does a router, even if you have more than one output port and / or have outbound access.

Receive essentially a modem and the output signal to a computer. This is the most basic functionality, and modems just do this are called “dumb modem”. A more advanced modems also referred to consult with your ISP. In other words, you will automatically receive the Internet IP address and sends it to the computer that is connected. These were the first forms of modems, DSL and cable, even in its infancy and most customers would only be a home computer.

Moreover, at that time, ISPs can be as many IP addresses it would have. This has been restricted to a single IP address to subscribe online and the problem of IP addresses available addresses tested. In response, the routers are sold to customers who want Internet access to more than one computer per household.

Now we have a good understanding of the role of modems and routers, is passed to the other two – hubs and switches. If you are a regular user, or in other words, you have four or more family members (including you) who use computers only for casual, such as email, web browsing and social networking, you’ve probably never worry hubs and switches. Moreover, with the advent and popularity of wireless networks, if you have a large family is not to worry about hubs and switches. And if you really worry too technical, you really have no reason for increasing the centers, no matter who you are. Just pass.

The purpose of a hub and a switch is similar – to divide a network via network connections. The first types of routers on the market were basically four ports on the router. You can place them in four Ethernet cables, which have four computers connected Sometimes more routers (especially for large companies), but do not have to worry about this. Let’s pretend we’re in a situation where you have a basic modem that connects to a router database, and the results of four computers. And our fifth member of the family just got a new Dell for Christmas. And they want a MySpace account to create.

Therefore, it is not popular with wireless, and therefore irrelevant to our situation, what do we do? We have a hub or switch. A hub is the older device, a switch is new, smarter devices.

A center receives information from one port and then sends the data to all other ports. You basically echoes all the information you receive for each connected device as a cook at a fast food restaurant with a loud voice calling the number of its burgers to receive. Any other restaurant can hear this information, but it is not relevant to them, so just ignore it.

A change, in turn, receives input from one port, which is intended to control, and sends it only to that device. On the contrary, is like a waiter who brings food.

The main disadvantage of the cube is to have a large amount of data for the same time lead to network congestion. Imagine if ten chefs shouting orders at the same time, and if a client feels that his end, which in turn must scream (and again, and maybe more), hoping that no one interrupts time and the client listens. This would be a very painful situation to be in a variety of reasons, but say that the effectiveness of communication suffer.

Incoming search terms:

• router switch hub
• switch hub router
• switch hub
• router switch
• hub switch router
• switch router
• modem router switch
• modem switch diagram
• modem to router to hub
• what is a hub

No related posts.