Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.



No description

Lauren Crowe

on 1 October 2012

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of NETWORKS.

NETWORKS. WHAT IS A NETWORK? A series of interconnected computers, linked together either via cabling or wirelessly.
Often linked via a central server but can be linked without a central computer. Advantages of networks

*Hardware can be shared.
(Printers, scanners, file servers, internet routers). Providing cost savings.

*Shared data. Information can be stored centralised (e.g. a shop database of products). More accurate data. Also easier to get information to people in different places.

*Improved communication. E-Mail, Intranets and Collaborative working.

*Shared software. Network licenses for software is often cheaper than individual licenses. Networks: software can be deployed or hosted on an applications server and downloaded on-demand.

*Improved, centralize security Logons, access levels.

*Centralised backup. Removing responsibility of individual people. Disadvantages of networks

*A lot of hardware required. E.g. servers, hubs, switches, wiring, wireless routers. A lot of technical expertise requires.

*Reliability and performance. High network traffic , could cause slow down. Central server failure could cause whole network to die.

*Security. Viruses can potentially affect an ENTIRE network. Hackers could compromise a whole system.

*Upgrading: Upgrading cabling and machines on a mass scale is expensive what is a stand alone computer? A computer which is not connected to a network (i.e. other machines or a central server).
All devices are directly connected to that computer and all data (software and information), is stored on each individual machine. Advantages

*Fewer Hardware requirements. No extra cabling or equipment needed. Just a PC

*Reliability and Performance. Not effected by network traffic. Performance should stay relatively the same.

*Security. A virus would not effect other machines (hmm!) Hackers etc would have to be on the actual machine. The machine can be locked away!

*Little ICT Knowledge Required. No complex understanding of networks etc is required for a stand alone system. disadvantages of stand alone computers *No hardware sharing. You would have to switch to different machines (taking your data with you), to use different hardware (e.g. if a scanner was on another computer).

*Software installed on every machine. Costly and Timely!

*Individual Backups. Each person would be responsible for backing up data on their machine. Imagine the duplication of data in a business!!!

*Harder to communicate. No real electronic means to communicate (unless they all had a separate connection to the internet – again, costly!) What is a LAN? Local Area Network. A series of interconnected computers restricted to one site.
Usually connected with a mix of cables and wireless technologies. what is a WAN? Wide Area Network. A series of interconnected computers over more than one physical site (area, town, city or even country!)
Connected with a range of technologies such as phone lines, satellite links, broadband, physical fibre optic link. by Lauren Crowe.
Full transcript