revision

revision

1. 7.1

   • files
     • a file is a place where you can keep your own pieces in an organized place
       • subfolder
         • a folder inside a folder
       • folder is a place where all your files
   • security
     • passwords
       • non-secure
         • dictionary name
         • something basic
         • name of a pets or friend
         • name of an item
       • secure
         • alphanumeric
         • use of symbols
         • complex (not easy to guess)
   • Cloud Computing
     • using internet to access files

2. 7.2

   • storage
     • optical
       • use a laser to scan
       • not durable
       • has moving parts
     • magnetic
       • mainly used for backup
       • has moving parts
     • solid state
       • very good beacuse it has no moving parts
       • durable
   • hardware
     • RAM
       • Random Acces Memory
     • CPU
       • Central Prossesing Unit
   • peripherals
     • input
     • output

3. 7.3

   • input
     • data recieved from a computer
     • Examples
       • keyboard
       • mouse
       • webcam
       • barcode reader
       • optical pen
   • output
     • gets a supply of data from the computer
     • examples
       • speakers
       • laser printer
       • screen
       • headphones
       • plotter
   • abstraction
     • only focusing on the important information
     • ignoring the details that aren't needed

4. E-saftey

   • E-safety is where you know or learn how to be safe on the internet
     • how to be safe
       • only friend people you know
       • if someone you dont know leave them

5. computational thinking

   • computational thinking helps us solve our internet problems
   • we can take a complex problem and solve them
   • understand the problem and develop possible solutions