Mind Map Unit 3: Internet.

COMMUNICATION SYSTEMS 

The elements of communication are: 

• Interlocutors
• Messages
• Means
• Code

New ways of communication: 

• Computer (means)
• Interlocutors (users) 
• Messages (protocols)

NETWORK

A network is two or more computers connected to one another that can share documentes, files, printers, etc.

• ELEMENTS

          - the server and the terminals
          - a network interface card 
          - transmission means
          - an element that controls and distributes information among the computers

INTERCONNECTED NETWORKS

An interconnected network is two or more networks connected together to form a system.

INTERNET

It is a huge network of networks, connected to the worldwide.

• CONNECTIONS

         - to set up a connection with an internet provider
         - programs that use the protocols used on the internet
         - you need to give your details to the acess provider
         - the provider gives you a user name and a password for enter

FINDING INFORMATION

A search engine is a web page resource that has a database of contents of web pages throughout the Internet, worldwild.