™ A computer network is a collection of two or more computers with communication between them through a medium. The communication medium can be through radio waves, wires, infrared, optical fibers etc. Computer network is an integral part of our daily lives, with the most important reason being that of communication. The use of computer networking is to share resources like fax machines, printers, modems, files etc., and its other uses are database server, computer server, email, chat, internet etc. The computer to which the resources are attached is called the server and the other computers that access the resource are called clients. In peer-to-peer computer networks there are no servers. The sharing of fax machines, printers, and modems amongst many computers and users reduce the operational cost. A database on a computer network is a very important application as it stores and runs many important data and jobs. Emails and chats can be used for instantaneous communication and sending of files on a computer network. The computer networks are classified, depending upon the size, as Local Area Networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). The topology (topology is the way the computer networks and network resources are connected) of the networking can be classified as Bus Network, Ring Network and Star Network. The networking hardware basically consists of wiring, network cards and a hub. Computer network cards are required so that one computer can understand what the other computer is talking. Network cards have a unique MAC address to identify computers on a computer network. Hubs connect all the computers in the network. Hubs can also be used to connect to other hubs to increase the size of the computer network. Two computers can be connected using Ethernet cards or phone lines or power lines for communication, with hardware kits available at roughly a cost of $100. As the number of computers in an office or a home increases, so do the number of cables, so wireless networking is a viable solution. In wireless networking radio transreceivers 코인카지노 or infrared signals are used to communicate between computers and devices. Examples of wireless networking include Wi-fi and Bluetooth technology, though there may be security issues involved in wireless networking. However there definitely is a stronger preference towards wireless networking nowadays among consumers. Computer networks have added a new dimension to the 21st century. Today the cyber world is much faster and wider than the real world. This has all been made possible due to computer networks. Computer networks have revolutionized business, communication, travel, research, defense, society and almost all human endeavors. The evolution of computer networks has helped the technological revolution take a big leap forward.
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™ As far as I’m concerned, wireless networks would have to rank as one of the best inventions in history. They really are the best thing since sliced bread. I mean, really, bread is easy enough to cut yourself, but have you ever tried to wire up a network? Its a lot of hard yakka as many would say. WiFi is the wireless way to handle networking. It 샌즈카지노 is also known as 802.11 networking and wireless networking. The big advantage of WiFi is its simplicity. You can connect computers anywhere in your home or office without the need for wires. The computers connect to the network using radio signals, and computers can be up to 100 feet or so apart. So, in the spirit of spreading the word, I’m going to give you some great reasons why you need a wireless network. Sharing Internet Access. Wireless networking gives you a cheap and easy way to share one Internet connection between multiple computers, eliminating the need for more than one modem. You can even add new computers to your network simply by plugging in a wireless card and switching them on — they get an Internet connection straightaway! There aren’t many wired networks that can say that. Sharing Files and Printers. A wireless network gives you access to your files wherever you are in your home, and makes it easy to synchronise the data on a laptop with a home computer. It is much easier to send files between computers with a wireless network than it is to send them by email, or even by burning them to a CD. Plus, with the printer connected, you can also write things wherever you want, press print, and go and collect them from a printer connected to another computer — printers that are plugged into one of the computers on the network are shared between all the computers automatically. Always On Connection A big factor in the spread of broadband was that it let Internet connections be always-on, without needing to dial in. Well, wireless networking lets network connections be always-on, meaning that any of your computers can connect to the Internet whenever you want! You can take laptops from room to room, and it doesn’t matter — they’ll always have access. Plus, there’s not even any need to set up a username and password system, as wireless networks work without logging in. It’s just so convenient! No More Wires. This, of course, is the biggest reason why you should switch your network over to wireless. Wires are inconvenient, expensive, ugly and dangerous — you’ll be delighted to see the back of them. The average Ethernet wire doesn’t cost that much per metre, but once you’ve bought enough metres to do whatever you need to do, well, it tends to add up quickly. Not only that, but if you want to run your wire between rooms or floors, you have to knock holes in the walls — which might not even be allowed if you’re renting. I know plenty of people in rented apartments who had to keep their network confined to one room until they went wireless. With wireless networking, well, you can even take your computer outside, if you want to! No more wires also means no more spaghetti all over the floor and in the corners. Not only does this improve the safety of your home, as it’s all too easy to trip over exposed wires, but it also means that you don’t have to go to all the trouble of packing all the wires up and re-connecting them at the other end when you move. It also means that you don’t have to examine every wire for damage if your Internet connection breaks down. Play LAN and Internet Games. You might have seen an option in your favourite game to play over a LAN. Well, wireless networks are LANs, which means that your whole family can play that game together — without needing the computers to be anywhere near each other. It’s far more fun to play against real people you know than to play against random people over the Internet, not to mention that the game will work much faster. You could even invite your friends to bring their computers and join in — a ‘LAN party’! An added benefit is that wireless equipment lets you easily connect any games consoles you or your kids might have to the Internet, and start playing online. It’s far easier to play online with a wirelessly connected Xbox or PlayStation 2 than to have to connect it to your modem every time. Convinced Yet? If you’re excited, then that’s great — keep reading these articles for advice on how to set everything up. If you don’t think it’s for you yet, well, don’t give up on it — I’m sure you’ll come round when you realise just how easy and cheap wireless really is. |
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