ICT

• Network

  Connection between devices that allows data and resources to be shared

  Posative

  • Makes communication easier and quicker ( send email instead of letter )
  • Allows resorts to be used more efficiently ( all computers can connect to one printer )

  Negative

  • Fixed arrangement ( may need a socket to plug in rooter ) only in specific places
• Ad hoc network


  Flexible network and temporary
• Ad hoc network


  • Personaly hotspot form phone that can connect to devise
• Tethering


  One device connecting to another to share Internet connection. Can be wired commonly used is a personaly hotspot from phone
• Advantages of ad hoc networks


  • Little set up required
  • Flexible. Can begin and end whenever
• Disadvantages of ad hoc networks


  • Use up mobile data
  • Battery drain faster
  • Not designed as a rooter so has a unstable signal
• Open network


  Open to the public and used my businesses
• Data can be encrypted in open networks
• There is a risk of being hacked in open networks
• Eavesdropping can occur in open networks where hackers can read messages and change them to get more info
• Malware can be added in open networks
• Network availability

  Not avaliable to everyone... location or fanatical

  • Rural areas have weak connection
  • Better infrastructure in city's

  Black spots- no connection

  • Rural areas due to physical obstical e.g. Mountain
  • City areas due to buildings made of certain materials
• Cloud storage

  Local storage is when data is stored on individual devices however - Cloud storage is not permanently stored on the devise but also stored on other location and can be accessed via the Internet
• Data access


  • Web-based interface
  • Mobile app
• Cloud storage features

  -Desktop applications can be used to synchronise files held on individual devices and the cloud
• Cloud storage advantages


  • Files can be accessed from anywhere, 24/7
  • It's scalable
• Cloud storage advantages


  • Backups and version control may be used
  • Folders can be shared and access rights set
• Cloud storage disadvantages


  • Internet connection is needed
  • For small users cost may be high, and is not one-off e.g. a monthly subscription
  • No control over security or location of the servers
  • Countries have varying privacy laws some are lax
• Computing


  Processing is done only on the device
• Cloud computing


  Processing is done in another location and accessed via the Internet
• Features Cloud computing


  • Resources like storage and applications are available on-demand
  • Demanding processing can be done on the servers, not on the client computers
• Cloud computing example


  • STADIA
• Benefits of cloud computing


  • Saves on hardware costs
  • Uses fewer local resources
• Cloud computing features

  • Can collaborate using cloud providers - able to connect to other people remotely
  • Allow real time changes form others who can access document
  • A chat or comments to communicate
  • A track changes view- can see who made what changes 


  Collaboration

  • Can occur as the server holds a single shared instance of a file ( giving a view of that file to each individual person connected- one file changed by 6 or 7 people)
  • The colour application is kept upto date
• Advantages of cloud computing

  • Resources are available only when they are needed
  • Can be accessed from anywhere and from any device
  • No software installation is required locally
• Disadvantages of cloud computing

  • Internet connection is needed
  • Some features may not be available in cloud-only applications
  • Reliance on the cloud provider to provide security, privacy, backups, and updates