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Overview of the Internet

overview of the internet

 what is internet ?

 The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals.

 evolution of the internet


advantages and disadvantages of internet



INTERNET
ADVANTAGES
DISADVANTAGES
Software download
  • ·         You can freely download software like utilities, games , music, videos, movies from the internet.
Virus threat
  • ·         Threat to our privacy
Access information
  • ·         Can find any information in almost everything that you want to know.
Spamming
  • ·         Sending unsolicited e-mails in bulk, which serve no purposes and unnecessarily clog up the entire system
Social connectivity
  • ·         We can communicate with each other using online application such as facebook, Instagram and whatsapp.
Social disconnect
  • ·         People now only meet on social networks
Online services
  • ·         Perform transaction online
  • ·         Book ticket online
Dangers involved when children using the internet
  • ·         They could be talking to a harmful person  online.

 what is intranet

Intranet is a local or restricted communications network, especially a private network created using World Wide Web software.
ADVANTAGES AND DISADVANTAGES OF INTRANET

                 ADVANTAGES                                        
                        DISADVANTAGES
  •           Commercial or confidential data is kept secure within the organization
  •           Reliable. The company will have dedicated IT personnel to keep things running smoothly.
  •        Commercial or confidential data is kept secure within the organization
  •               Connections between an intranet and the Internet potentially compromises security, by allowing virus infections or system hacking.
  •         High bandwidth. No connection limits unlike the Internet.
  •                  Staff needs training to ensure workers know how to use the system effectively.
  •             Reliable. The company will have dedicated IT personnel to keep things running smoothly.
  •                 Information overload is another disadvantage because it reduces productivity.


WHAT IS EXTRANET

An extranet is the portion of a company’s network that allows customers or suppliers of a company to access parts of an enterprise’s intranet

ADVANTAGES AND DISADVANTAGES OF EXTRANET

ADVANTAGES 
  •           Exchange large volumes of data using electronic data interchange (EDI)
  •           Share product catalogs exclusively with trade partners
  •           Collaborate with other companies on joint development efforts
  •           Jointly develop and use training programs with other companies
DISADVANTAGES
  •          Extranets can be expensive to implement and maintain within an organization (e.g., hardware, software, employee training costs), if hosted internally rather than by an application service provider.
  •           Security of extranets can be a concern when hosting valuable or proprietary information.

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