revision

revision

1. cloud computing-

   • advantages
     • the user can work with there files on different computers.
     • its very secure so the protection of data or hardware from unauthorised users are good
     • saves anything you want.
     • you can use from any device when using internet
   • disadvantages
     • data online is vulnerable to security attacks.
     • web apps do not usually have as many detailed functions as a full software package
     • it isn't always possible to store more than a few gigabytes online with one provider
   • password
     • family member
       • a mixture of numbers ands letters
         • 8 characters
     • non-secure
       • dictionary words
         • not too complicated
       • pets name
   • solid state
     • solid state devices use non-volatile random access memory (RAM) to store data indefinitely
   • keywords
     • computional thinking
       • abstractation
         • decomposition
           • pattern recognisation
             • algorithms
               • sequence
                 • selectation
   • input\output
     • an input is data received by a computer
     • an output is a data sent from the computer.

2. e-safety

   • don't share personal information
     • avoid sharing your location
   • if meeting with someone online take an adult and go to a public place
   • don't troll
   • avoid having the same password for all accounts