Transmitting data 2 & Networks

Transmitting data 2 & Networks

1. Features of connection types and how they meet the individuals needs

   • Wireless
     • Advantages
       • Cost savings - Wireless networks can be easier and cheaper to install
       • Increased efficiency - Improved data communications lead to faster transfer of information within businesses
     • Disadvantages
       • Security - Wireless transmission is more exposed to attack by unauthorised users,
       • Transmission speeds - Wireless transmission can be slower and less efficient than 'wired' networks.
   • Wired
     • Disadvantages
       • Users location limited by need to use cable and/or connect to a port.
       • network can be difficult and expensive. Can also be difficult and expensive to set up.
     • Advantages
       • Usually faster than wireless.
       • More secure than wireless

2. Keywords

   • ISDN
     • stands for integrated services digital network.
   • Intranet
     • a local network website where access is restricted to internal users, such as within an organisation.
   • Extranet
     • an intranet system which can be accessed by authorised external users to retain data.
   • CPU
     • Central Processing Unit which acts as the computers brain to process instructions
   • Encrypting
     • Converting data into a code to avoid it easily being accessed by unauthorised users. Specialist software is used to encrypt data.