• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  • Level: GCSE
  • Subject: ICT
  • Word count: 1281

Network is any collection of independent computers that connect with one another which allow users to share files and peripherals such as modems, printers, scanners,application software e.tc

Extracts from this document...

Introduction

Network is any collection of independent computers that connect with one another which allow users to share files and peripherals such as modems, printers, scanners,application software e.tc. Networks can linked people who are in the same office or in different continents. Networks at multiple locations are connected using services available from phone companies, users can send emails, share links to global internet, or conduct video conferences in real time with other remote users. Companies rely on applications like electronic mail and database management for business operations. A typical network must have four things besides computers which are a set of communication rules to make sure to make sure that everyone speaks the language(Protocol), cards that plug into the back or side of the computers and lets them send and receive messages from other computers (Network interface cards..NICs), the medium to connect all the computers together(Cable) and the hardware to perform traffic control(Hub). The Larger Area Network spans a relatively small area. Most LANs are confined to a single building or group of buildings. This type of network can be found in schools, buildings or homes. Most LANs connect work stations and personal computers, each individual computer in LAN has its own CPU which executes programs but it is also able to access data and devices anywhere on the LAN. ...read more.

Middle

The cabling it uses for this type of connection is called 'Intranet' the intranet uses the same technology and protocols as the Internet but is restricted to certain users. The cabling is called category 5. For example a big UK company like Superdrug, may have an Intranet in their main offices that is only available to employees of Superdrug. Star Star network has a central connection called a hub or switch. Devices connect to the hub or switch with unshielded twisted pair (USP) Ethernet. Star networks are used in many homes. Star networks requires a lot of cable, failure in star network cable will take down one computer's network access and not the entire LAN only if the hub fails the entire network fails. Ring In a Ring network every device has exactly two neighbors for communication purposes. All messages travel through a ring in the same direction either clockwise or counterclockwise, a token is passed from computer to computer. Failure in any cable or device breaks the loop and can take down the entire network. No server is needed which reduces cost and management but if one computer goes down then the whole network goes down, because the packet/frame needs to pass through each computer to get to its destination. ...read more.

Conclusion

A switch can connect ethernet, token ring, fibre channel or other types of packet switched network segments together. Hub A hub is a common connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports. It serves as communication wiring point to help information flowing through one central location to any other computer on the network. It is the central part of the star topology. Router Routers are very similar to hubs in that they allow connections of shared communication between different computer equipment. Computers attached to the shared routers can access the same printers, files, or an internet connection. In addition, network routers add a layer of protection from malicious programs. Conclusion In conclusion although we need all the above technology for the setup of networks we still need software like Novell, cables, connectors and network cards. There are some advantages in having a network in that you save by users sharing expensive peripheral devices like lasers and printers. Networks allow us to stay in touch with people next door and all over the world without leaving our homes whethers its LAN, MAN, WAN or CAN which allows businesses and government organisations to share important information. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Communications section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Communications essays

  1. OCR GCSE Business & Communication Task 7 Report

    Any false allocations can degrade my companies image and can decrease the attractiveness and reliability of my companies ethics. I can ensure I am not decreasing my customers by including true statistics into the advert and by visually showing a pleasing advert with colours which show a professional, informative corporation which can be relied on.

  2. special needs

    Evaluation of MS Word assisting Maria: MS word is used by a huge amount of organisations, workers and individuals globally. The software allows busy organisation to successfully word process and communicate information, workers to confirm and review reports of a particular business and allows individuals to input information required from

  1. Free essay

    Impact of ICT in Community

    How Hal Screen Reading Software does meets Mary needs? The Braille Keyboard is very effective in meeting the needs of Mary Cox because it allows her to stay in contact with her family and friends. Mary can also use the Braille Keyboard to type emails and Memos so she can write emails for her clients.

  2. SK-II has already established as a leading brand within its' skin-care industry. By empowering ...

    in the passive way that has characterized mass-media TV techniques over the last twenty years. Virtual presentation is another important aspect of Internet advertising in that they create possibilities for using multi-media. This means that SK-II is able to create virtual demonstration (by top models, actress or beauty consultants)

  1. WHAT DO YOU GENERALLY LIKE DOING AT THE WEEKENDS?

    Besides, in case of serious medical disorders, people have to go to a big city to be hospitalized or to see a specialist. People in small town usually works heard in the fields. But there are also many people, especially eldery people who notice values and advantages of living in small localities.

  2. Unit 23: Investigating Communications and Networks

    features a single cable to which all workstations and peripherals are connected. In this respect, ring topology marginally resembles bus topology. The difference is that a ring network's backbone is a closed loop as shown in the diagram below. Advantages of a Ring Topology * Fast data transfer as the

  1. Presentation about computers

    I then went back to try to search again. I had used Google before, so this time I thought I would try Ask Jeeves, so I could put a whole sentence in: This gave me lots of computer shops again, one of which was called Savastore. This gave me an advanced search option where I could make some choices

  2. Strategic Management of Innovation.

    If the vision of global roaming and ubiquitous global wireless Internet access is ever going to be achieved, an international standard must be uniformly adopted. While each standard has its strengths and weaknesses, few companies could afford to rebuild their established infrastructure to accommodate a new standard.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work