Describe the following features of LAN’s, WAN’s, and the internet: transmission media, bandwidth, geographical spread and functions. Description of a client server on a network. Description of the following features and functions of addresses, sending, reading, replying, setting up an address book, setting up mailing lists, and setting up folders. Description of the following features of the world wide web: web pages, hyperlinks, browser and search engines. Description of the following economic factors which have led to the development of computer networks: falling cost of telecommunication technologies and services, shared access to expensive equipment, geographical spread of organisations and demand for up-to-date information. Description of the main features of the computer misuse Act, the Copyright Designs and Patents Act and the Data Protection Act.

LAN stands for local area network (hence the name of the slide). A LAN is used in schools and some businesses as they don’t need information to be passed out of the building. LAN’s can use more expensive cabling as it does not need a lot of it. The internet on a LAN will be quicker as it does not have to travel as far. The users can communicate through s. Different levels of access can be granted to users. The users can work from any station on the network.

WAN stands for Wide Area Network (hence the name of the slide) WAN’s are used anywhere except in the school and some businesses. They are slower than local area networks as they are worldwide. They don’t use the expensive cables as it would cost to much. Allows users to share data, files and equipment. Allows users to each other. Allows video conferencing. Allows access to databases. Gives users a lot of entertainment.

One computer acts as a central resource for the others. The central computer will normally have a faster processor. It will have a greater amount of backing storage than the stations on the networks. The central computer is known as the server. The stations on the network are called clients.

Networks can link users together. Networks can link users together. They can allow users to share information. They can allow users to share information. They give a varying amount of access to users. They give a varying amount of access to users. Networks can mean an increased profit rate to a business. Networks can mean an increased profit rate to a business. They can save lots of money in the long run. They can save lots of money in the long run.

means that you are sending an electronic message through the internet. address is either your or someone else’s address that the is sent to. Reading just means that you are reading the . Sending means that you have to send the message to someone else. Replying is when someone sends you an and you are writing back to the person who sent it. Setting up an address book means that all your s would go into that book. A mailing list is the s that several of the messages you are sending need to go to many people at the same time. This can be done by copying the people to the “To” box or the “CC” box. Folders are used to move messages out of the inbox to stop it from getting congested.

The internet is made up of server computers distributed across the world. One server will provide some unique information of its own but it will also point at information on other servers. Hyperlinks allow any page to be connected to any other. Hyperlinks are normally identified in blue. Search engines such as Google and Yahoo run programmes called web crawlers to gather information about what pages are on the internet. Brower’s are the buttons which allow you to navigate ahead or back pages that were previously viewed.

There are man issues effecting the economic factors of a network. There are man issues effecting the economic factors of a network. Legislation – the law has struggled to keep up with the rapid pace of change that the internet has brought to society and consequently new legislation laws concerning the use of electronic information and access to networks. Legislation – the law has struggled to keep up with the rapid pace of change that the internet has brought to society and consequently new legislation laws concerning the use of electronic information and access to networks. Computer misuse act – this was introduced in 1990 to secure computer material against unauthorised access or modification. Computer misuse act – this was introduced in 1990 to secure computer material against unauthorised access or modification. Any uploading or downloading of information through on-line technologies that is not authorised by the copyright owner is deemed to be an infringement of their rights. Any uploading or downloading of information through on-line technologies that is not authorised by the copyright owner is deemed to be an infringement of their rights. Data protection act – The data protection act 1998 is concerned with information about living individuals that is processed both manually and automatically. It is basically gives new rights to those individuals about whom information is recorded. Data protection act – The data protection act 1998 is concerned with information about living individuals that is processed both manually and automatically. It is basically gives new rights to those individuals about whom information is recorded.