Why Computers and Networks?
Computers have become a necessity for all types of working environment. No matter what type of work you are doing, computers can help you in maximizing your work efficiency. Due to this fact computers are being used in all types of offices. Some areas like banking, insurance, stock exchange as well as reservation systems completely rely on use of Computers and Internet.
In a computing environment people need inter connectivity of computers to share resources like (files and data). It further helps in use and management of information collected through various nodes. These kinds of network that is being implemented in a particular organization are known as Intranets. Intranet helps in information sharing between different offices of same organization at different locations. It works on LAN (Local Area Network), MAN (Metropolitan Area Network) or WAN (Wide Area Network). There are mainly three ways of implementing different type of networks – wired, wireless or mixed (wired and wireless both as and when required).
Why Internet?
Internet is information superhighway, one of the major and accurate sources of getting information on any topic quickly. It is also used as backbone for implementing Intranet. Company’s websites and email are completely dependent on Internet. In brief, internet is the most important and fastest medium of communication in current hi-tech world.
Network Related Problems
As an end user you must have experienced various types of problems in your network during your work. Due to network downtime organizations have to bear loss of several productive working hours or in turn loss of revenue. Network downtime for your web servers may result unavailability of your website, in that case your potential viewers may not find required information through your website. It may create a negative impact of your company/organization or business
To deal with such problems immediately organizations need network diagnosis and maintenance experts to fix such problems to further reduce loss of productive working hours. However, it is not possible for every organization to hire a fulltime team of networking experts to solve their network issues. They prefer to rely upon network security consultants, who help them whenever needed. It’s a cost-effective alternative for organizations because they don’t have to hire full time professionals for taking care of their network troubleshooting needs.
By: Dan Stratton
Posts Tagged ‘Metropolitan Area Network’
The Need For Network Security and Maintenance
November 5th, 2009Computer Network Overview
October 4th, 2009
Computer networking or data communication is a most important part of the information technology. Today every business in the world needs a computer network for smooth operations, flexibly, instant communication and data access. Just imagine if there is no network communication in the university campuses, hospitals, multinational organizations and educational institutes then how difficult are to communicate with each other. In this article you will learn the basic overview of a computer network. The targeted audience of this article is the people who want to know about the network communication system, network standards and types.
A computer network is comprised of connectivity devices and components. To share data and resources between two or more computers is known as networking. There are different types of a computer network such as LAN, MAN, WAN and wireless network. The key devices involved that make the infrastructure of a computer network are Hub, Switch, Router, Modem, Access point, LAN card and network cables.
LAN stands for local area network and a network in a room, in a building or a network over small distance is known as a LAN. MAN stands for Metropolitan area network and it covers the networking between two offices within the city. WAN stands for wide area network and it cover the networking between two or more computers between two cities, two countries or two continents.
There are different topologies of a computer network. A topology defines the physical layout or a design of a network. These topologies are star topology, bus topology, mesh topology, star bus topology etc. In a star topology each computer in a network is directly connected with a centralized device known as hub or switch. If any computer gets problematic in star topology then it does not affect the other computers in a network.
There are different standards and devices in computer network. The most commonly used standard for a local area network is Ethernet. Key devices in a computer network are hub, switch, router, modem and access point etc. A router is used to connect two logically and physical different networks. All the communication on the internet is based on the router. Hub/Switch is used to connect the computers in local area network.
Hopefully, in this article you may have learnt that what a computer network is, how important it is in our lives, what are different network devices, standards, topologies and communication types.
By: Bushra Bashir
