| Computer networking is the connecting of two or | | | | password for the router and limit access to only |
| more computers that allows them to share | | | | those computers on your wireless network. |
| resources. It can be done between computers in | | | | Informally defined computer networking is the |
| a home, in a business, across a corporation, and | | | | foundation of the Internet. The Internet itself is |
| even internationally. It can equally be defined as a | | | | easier to understand when defined as the set of |
| method of connecting two or more computer | | | | users, enterprises,and content providers that are |
| systems together including printers and other | | | | interconnected by Internet Service Providers |
| devices. | | | | (ISP). |
| The benefits of networking are considerable, even | | | | From an engineering standpoint, and please forgive |
| on a network of only three systems. In computer | | | | me for being rather techie here; the Internet is |
| networking there was never a truer statement | | | | the set of subnets, and aggregates of subnets, |
| than that this is a case of advantages | | | | which share the registered IP address space and |
| experienced being far greater than the sum of | | | | exchange information about the reachability of |
| the parts. PC networking is, as a consequence, a | | | | those IP addresses using the Border Gateway |
| rapidly evolving discipline with many exciting | | | | Protocol . Computer networks may also be |
| opportunities. Challenges that arise in networking | | | | classified according to the network layer at which |
| and particularly in the Internet tend to be truly | | | | they operate according to some basic reference |
| global and have the potential to impact upon | | | | models that are considered to be standards in the |
| millions of users. | | | | industry such as the seven layer OSI reference |
| One huge and growing impact is Internet shopping. | | | | model and the five layer TCP/IP model. |
| Shopping online has grown over the last 10 years | | | | Companies that use their own computer |
| to become a huge market, and if a sales business | | | | networks must administer complex systems |
| does not today incorporate this technology use | | | | which, once deployed, become vital tools for the |
| they will fall behind their competitors. | | | | continued efficiency of their operations. They |
| But computer networking is also producing much | | | | employ administrators who focus primarily on the |
| more subtle uses within our societies. For | | | | day-to-day operation of networks, while network |
| example, Internet technologies can be deployed | | | | engineers deal primarily with system upgrades, |
| to favorably condition empathic response in those | | | | security testing, and so on. |
| who have offended against community norms out | | | | Given the highly technological nature of computer |
| of a lack of appreciation for the effects that their | | | | networks you would have thought that just |
| criminal behavior has on other people. In other | | | | maintaining and developing these would be hard |
| words Internet linked devices can track home | | | | enough. However, companies also routinely face |
| prisoners to maintain their behavior, in ways that | | | | ongoing challenges with the fight against damaging |
| 20 years ago had not even entered the heads of | | | | software, such as malware such as worms, |
| science-fiction writers, to the benefit of society as | | | | viruses, and spyware. |
| a whole. | | | | Computer networking has enabled people to work |
| Wireless Internet technology, is the development, | | | | on the move, and take work home much more |
| also known as WiFi, which is really taking over the | | | | efficiently than has ever been possible before. |
| way people access the Internet and it has | | | | Today's mobile workforce attach numerous |
| become widely popular in a very short space of | | | | devices to the corporate network that are hard |
| time. One reason for this is it allows individuals to | | | | to control from a security policy perspective. It is |
| access the Internet via a network hot spots, | | | | a common strand that companies that maximize |
| while traveling without the use of cables or wires. | | | | the use of and benefits from the capacities and |
| In short it releases us from the tyranny of wires | | | | capabilities of their networks are able to gather, |
| and plugs! | | | | analyze, and disseminate critical marketing |
| Wireless networks are now widely used including | | | | information quickly, which can give them an |
| Internet-enabled mobile phones with cellular phone | | | | advantage over their competitors. |
| networks and, within buildings, wireless networks | | | | However, data loss and system downtime can |
| such as Bluetooth. These are in addition to the | | | | bring any business to it's knees, so in this area to |
| site networks used by academic institutions and | | | | use the strictly cheapest systems and labor, may |
| large businesses. Wireless routers must be | | | | be a false economy of the first order. There are |
| configured immediately for security right after | | | | many highly trained staff who participate in |
| you set up your network. It is important to | | | | Microsoft's certified computer networking courses |
| emphasis that wireless can easily also mean | | | | and qualification. These specialists are more than |
| insecure unless users are careful to set systems | | | | able to protect your business network day and |
| up correctly. | | | | night. They deliver network support services |
| So, do this right away, as soon as you have got | | | | which include data security, data backup and |
| the device running. You need to set a new | | | | disaster recovery plans. |