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What is the importance of computer network
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Computer networking has changed our lifestyle tremendously. It provided opportunity for many people to work at home. Today we use computer networking to do our banking from home, communicate with relatives, shop online, and even to entertain ourselves with music or by playing video games. We can get access to information on almost any subject we can imagine at the click of a mouse. Companies can save millions of dollars by sharing resources via computer networks rather than by shipping or traveling. Networking provides means for conducting video conferences and share software. “Computer networks function on a local area (LAN) or a wide area (WAN) based upon the number of people and the geographic distances involved. These can include a small business with two or three employees to major corporations to the Federal government of the United States.” (Computer Networking Majors Guide, n.d.) As more and more businesses and …show more content…
They organize, install, and support an organization’s computer systems, including local area networks (LANs), wide area networks (WANs), network segments, intranets, and other data communication systems. They correct problems with network communications, resource access, printers, and the computers. Here are some basic tasks for which a network administrator may be responsible: setting up and configuring network hardware and software; installing and configuring network media and connections; connecting user nodes and peripherals of all kinds to the network; adding users to and removing users from the network; managing user accounts, such as passwords, storage space, and file-access privileges; creating and maintaining a system for backing up data and program files; ensuring the security of the network; managing the organization 's e-mail system; managing users ' ability to access the Internet via the network; training users to utilize the network 's
Some of technology they will need to decide on will be whether to install a server computer, which is a computer on a network that performs important network functions for client computers, such as serving up Web pages, storing data, and storing the network operating system (and hence controlling the network). Server software such as Microsoft Windows Server, Linux, and Novell Open Enterprise Server are the most widely used network operating systems. As well the network operating system (NOS) routes, manages communications on the network, and coordinates network resources. It can reside on every computer in the network, or it can reside primarily on a dedicated server computer for all the applications on the network. In considering how their workers will communicate with each other in...
In conclusion, a local area network is made up of computers and a myriad of devices, such as routers, servers, switches, and firewalls. In order for it to connect to the Internet, a router must be installed. Servers provide special functions such as printing, file sharing, etc. Switches connect the computers together from different parts of the network. Firewalls prevent unauthorized access. There are a host of other devices that may be used as well. These devices are hubs, gateways, repeaters, wireless access points,
Meanwhile, the advent of early PC’s and the recognition of the value in networking devices together gave rise to Local Area Networks. These LAN’s were developed from a business customer perspective, which placed more emphasis on costs and ease of use over reliability. There were a number of different competing LAN technologies, two of the most common being Token Ring (IBM) and Ethernet (everyone else). The triumph of Ethernet in the marketplace, to the extent where it is included in every PC, game console and some refrigerators, provides a consistent and relatively inexpensive way to build internal networks with relative ease.
Furthermore, I realized that the development of high-speed packet-switched networks that integrate video, voice, and data will provide improved performance and quality of service by bandwidth allocation, error recovery, data compression, and access control for local and wide-area computer
Communication within our network has much improved with Windows NT. We are now capable of sharing files and data between all offices. Our Fast Ethernet Intranet provides speedy and stable communication transport.
A network can be based on either a peer-to-peer level or server-based, also referred to as domain-based. To distinguish the difference, a peer-to-peer network, also known as a workgroup, is a network in which a group of computers are connected together to share resources, such as files, applications, or peripherals. The computers in a peer-to-peer network are peers to one another, meaning no single computer has control over one another. There is also no central location for users to access resources, which means that each individual computer must share their files in order for other computers to have access (Muller, 2003, p.411). “In a peer-to-peer environment, access rights are governed by setting sharing permissions on individual machines.” (Cope, 2002) On the other hand, in a domain-based network, the computers connected together are either servers or clients. All of the other computers connected to the network are called client computers. The server is a dedicated machine that acts as a central location for users to share and access resources. The server controls the level of authority each user has to the shared resources. When logging on to the network, users on client machines are authenticated by the server, based on a user name and password (Lowe, 2004, p.13).
(Network and Computer Systems Administrators) Summary has clarified the responsibility the administrator must fulfill. You need to have an associate degree, bachelor degree or any certification. You must have a strong knowledge of computers and electronics.
L., Larry, and Bruce S. Computer networks: a systems approach. 4th ed. New York: Morgan Kaufmann Pub, 2007. Print.
The company has just set up a few months, so experience in management in the company's networking system is very weak. The company should get some advice from networking to facilitate the daily work and business of the company.
Probably the most common thought of career position within the information technology arena that garners the most OS-centric job description specifics is that of the system administrator or network administrator. A system administrator is a person employed to maintain and operate a computer system or network for a company or other organization. The duties of a system administrator are wide-ranging, and vary widely from one organization to another. Sysadmins are usually charged with installing, supporting, and maintaining servers or other computer systems, and planning for and responding to service outages and other problems. Other duties may include scripting or light programming, project management for systems-related projects, supervising or training computer operators, and being the equivalent of a handyman for computer problems beyond the knowledge of technical support staff.
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets the user or users share hardware such as Printers and scanners. The speed of access between the computers is lighting fast because the data has a short distance to cover. In most cases a LAN only occupies one or a group of buildings located next to each other. For larger area need there are several other types of networks such as the Internet.
When it comes to network management, one method we have to mention is that intranet - one of the most popular network management methods in current companies. An increasingly common corporate tool for organizing access to proprietary databases, an intranet is an internal web site that runs entirely on a private local or wide area computing network (Rouse, 2006). Unlike the usual connection to the Internet which connects by dedicated telecommunication links or phone lines whereas an intranet relies on corporate data networks. This means that data transfer rates toward to far faster on an intranet than on a normal Internet connection. In this part, similarly, taking intranet establishment as an example to explain that why network management makes an enormous contribution to the development of the companies. Firstly, an obvious intranet benefit is its cost-effective feature which it gets from the paperless environment. Under an intranet environment, a company can publish most of the company documents through the intranet platform which can save the company’s money on printing files and distributing data, copying and document maintenance overhead. For example, the HRM company PeopleSoft “derived significant cost savings by shifting HR processes to the intranet” McGovern(2002) mentioned. McGovern continue to say that the manual enrollment cost in benefits was around USD109.48 per enrollment, "shifting this process to the intranet reduced the cost per enrollment to $21.79; a saving of 80 percent". Another company that saved money on expense reports was Cisco. In 1996, Cisco processed 54,000 reports, amounting to USD19 million, the cost per report was USD50.69 whereas thanks to the process had been moved to the intranet, in process cost ...
Network management planning and security planning involves identifying the best and most appropriate systems and hardware that the firm can use to better manage network and plan security systems. Therefore, the management required me to examine the best software and hardware systems in the market place that the company can adopt to enable it to manage the network and security. The management required me to advice on the implementation procedure of various plans that are going to be adopted. My responsibility also involved finding out or predicting the impact of the plan on the future operations. They required me to evaluate the challenges the company might face while adopting the changes in the network management plan and security plans.
The Internet has revolutionized the computer and communications world like nothing before. The Internet enables communication and transmission of data between computers at different locations. The Internet is a computer application that connects tens of thousands of interconnected computer networks that include 1.7 million host computers around the world. The basis of connecting all these computers together is by the use of ordinary telephone wires. Users are then directly joined to other computer users at there own will for a small connection fee per month. The connection conveniently includes unlimited access to over a million web sites twenty-four hours a day, seven days a week. There are many reasons why the Internet is important these reasons include: The net adapts to damage and error, data travels at 2/3 the speed of light on copper and fiber, the internet provides the same functionality to everyone, the net is the fastest growing technology ever, the net promotes freedom of speech, the net is digital, and can correct errors. Connecting to the Internet cost the taxpayer little or nothing, since each node was independent, and had to handle its own financing and its own technical requirements.
Exploring The Internet The Internet is like a network of networks where any computer can link up to information stored within it. It is accessed by a telecommunications line and a modulator-demodulator (MODEM). It is brought to your computer screen by converting analogue telephone signals into digital computer signals. There are many advantages and disadvantages on the Internet.