A network is a group of computers which are linked in order to share resources. These computers may be linked by cables, telephone lines and satellites. There are 2 types of networks, local Area Network (LAN) or Wide Area Network (WAN).
Local Area Network is when computers are confined into a small area to and are connected from cables or wireless. LAN can use resources and share them such as files, software, hard disks and peripherals (devices used to input or output information in a computer).
Peripherals can reduce the amount you spend as you don’t need to buy a printer for each station as you can all share a printer. Also users of LAN can save their work to the main server which means they can retrieve their work from whatever work station they are working at which means they do not have to work at the same station all the time. LAN also makes sharing easier as you can save documents onto the main server then
It can also be an issue as the wiring can be expensive to buy and install and if the network is down, all computers would be out of use.
WAN is a network is a LAN network that has been connected to another LAN network to make a bigger network called a Wide Area Network. The LAN networks are connected by fibre optic cables, satellites, telephone systems or a modem. Many businesses use WAN as they can connect world-wide to their businesses in different countries.
WAN is useful as you can send messages quickly to anyone else who is on the network meaning communication occurs faster. They also can include images in the messages. WAN also allows peripherals to be used from all from all the people on the network. WAN is also useful as it is a larger network meaning you can share more without being so close to each other like the LAN network. It also allows you to send things to people which are in a different
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...
Wireless networks – While the term wireless network may technically be used to refer to any type of network that is wireless, the term is most commonly used to refer to a telecommunications network whose interconnection between nodes is implemented without the use of wires, such as a computer network. Wireless telecommunication networks are generally implemented with some type of remote information transmission system that uses electromagnetic waves, such as radio waves, for the carrier and this implementation usually takes place at the physical level or “layer” network.
To attempt to define a network in a few sentences would be a fool’s errand. A network could be seen as simply a grid of interconnecting connections between multiple bodies. However when this vision is applied to real-world systems, they all start to differ. There is not anything that exists in the universe that is not part of a network. A network is the result of different parts or members which have similarities in parts of their identity. This similarity that they have in common, they will also have with other bodies forming a network between them. Most of these factors of identity are different from those of most others. As a result, each factor will be in common with different other members of different networks. Each factor includes this body in a multitude of networks. This means that no one thing is in one and only one network, but is included in many.
Historically WAN’s (Wide Area Networks) and LAN’s (Local Area Networks) have relied on independent technologies. At a physical layer WAN technologies today continue to be based largely on legacy TDM systems that were built initially to support voice, video and early data communications in a reliable fashion. WAN connectivity over distance often requires the use of regenerators and meet points between multiple Telco suppliers that may span the globe. Without strict adherence to standards, these connections would not function. WAN technologies depend on highly complex and expensive equipment, which can guarantee inter-operability and “five 9’s” reliability required to support the millions of paying customers utilizing the network.
Home telecommuting plugs into everything that is happening at the office, just as if they were at the office. By opening your networks to the public and allowing your information to be available to the internet, Co-Works will have access to your information available with many different types of home equipment needed for home telecommuting that can be a little expensive at first to get started. Some of the different equipment that is needed is a computer with fax and scanner so proper communications are available, phone, high speed internet connection, a desk, file cabinets, and a web camera with an internet messenger along with video conferencing software. There are many advantages for companies today to use telecommuters in their day-to-day business operations. This allows business’s to cut corners and save money so that way more money can be spent on other projects which will make more of a profit, and help reduce the costs of gas and travel expenses for employees who travel a lot.
Server-based networks are higher in cost because money is invested for dedicated servers, network operating software, and network administrators with technical expertise required for network management and configuration. On a small network consisting of fewer than five workstations, client/server architecture is not recommended and is very costly.
The purpose of this paper is to explore the impact that the Internet has on the adult sex industry. After careful observations at an adult retail store, it was quickly notices that not very many people attend local shops. The rapidly increasing market of sexually explicit material on the internet challenges social science to study the range of experiences that are involved with such content (Fisher & Barak, 2001). Additionally, because there is more of a normalization surrounding pornography there seems to be a wider range of individuals who are using pornography. The anonymity of the internet has displayed a steadily increasing percentage of individuals who consume pornography on a regular basis (Wright, Bae, & Funk, 2012). So much so that Wright, Bae, & Funk (2012) suggested that “women who are younger, less religious, and non-white were more likely to consume pornography”.
Easy network deployment since wireless mesh network have a capability for self-configuring to ensure the data transmitted reach at the destination. This is very useful when unexpected thing happen that make the node down for unknown reason.
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,
In Local Area Network(LAN), Ethernet is a physical and data link layer technology. used to connect more than one computer systems to form LAN that comes with protocols that can control the passing information and to avoid two or more systems transmit simultaneous. Ethernet cable made up of several coaxial wire. The function of Ethernet is to deliver data between computers on the Internet.
Virtual Private Networks allow enterprises to utilize cost effective, secure, and scalable hardware to extend their wide area network. These networks are cost effective in that they are able to connect remote users to the corporate network without the need for expensive dedicate WAN links or modem banks. They also allow remote users to utilize their own internet connections from their remote site which also saves the corporation money. In essence, the longer the distance is between the connections, the more savings the company can realize. Increased security is also a factor in that it provides encryption between the two sites and that helps protect against unauthorized access to the system. The system is also scalable in that additional hardware is easily added to the network to allow for more users. This allows the corporation to add significant amounts of new users without significantly changing the network infrastructure.
All the devices that been studied above each play it unique role in network works that are deeply affected our daily lives. For example without hubs it really impossible for more than one computers to link to one line. It is really hard to implement a long distance connections without a repeater to support and amplifies the signal. Without switch, it is impossible to switch from one port to another port. Without routers it is hard to divide a large network into separate parts thus saving cost and money.
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.
Introduction: This is a 21th century, technology is the most important and improved thing of the human life. It makes life easier and faster. Development of faster sophisticated technology we have better and fast life. So all we are connect each other by computer network. There are two different way of network: Wired and wireless. Now day we can found network almost everywhere. Home, business, public place, Airport, Planes, hospitals, school, train everywhere we can found networking. Therefore, almost every sector of the economy that has affected by wired and wireless technology. Wired network and wireless protect both has security, But in general wireless network is less secure than wired networks. For proper security AP (access point) and its antenna should be right position. Also add a wireless access point or use a wireless router we can connect to network wirelessly. AS we using more and more of devices (smart phones, tablet and computers) rely on wireless networking, we have to improve our network security too.
Electronic mail (e-mail) - Electronic mail. Permits you to send and receive mail. Provides access to discussion groups, often called Listservs®, after the software they operate under. Telnet or remote login. Permits your computer to log onto another computer and use it as if you were there.