Ce 2

• Computer Network

  Collection of interconnected devices that can communicate over a shared network medium
• Computer Network

  • Can be linked by cables
  • Telephone line
  • Radio waves
  • Satellites
  • Infrared light beam
• Types of Network


  • LAN (Local Area Networks)
  • WAN (Wide Area Network)
  • MAN (Metropolitan Area Network)
  • SAN (Storage Area Network)
  • SANP (System Area Network Protocol)
• LAN (Local Area Networks)


  Network like in an office building that does not use the internet to connect a small area
• WAN (Wide Area Network)


  Computer network that extends over a large geographical location such as countries
• MAN (Metropolitan Area Network)


  Designed for a town/city that provides very high speed connection using fiber optical cable, commonly used for some government bodies and organizations on a large scale
• SAN (Storage Area Network)


  Designed for computer network used to access data storage devices
• SANP (System Area Network Protocol)


  Known as cluster area network, connects OS and configuration
• Internet Protocol Address

  Unique number assigned to all devices such as computer, tablet, cellular phone and laptop
• Types of IP Address

  • Private IP Address
  • Public IP Address
  • Static IP Address
  • Dynamic IP Address
• Private IP Address


  Uses an independent address, commonly used for LAN in residential
• Public IP Address


  Allowing for devices on a global scale
• Static IP Address


  Designed to a device that remains constant
• Dynamic IP Address


  Temporary address for devices connected to a network that continually changes over time
• Whats App

  Most popular messaging application in the age of technology
• Whats App Features

  • Group video
  • Stickers
  • Payments
  • Group chat
  • Data download
• Brian Acton - developer of Whats app
• Jan Koum - Co-founder of Whats App
• Igor Solomennikov - developer of Apple in Russia
• Facebook- the company that acquired whats app for 19 billion US dollars
• Mark Zuckerberg - co-founder of Facebook