HCI

HCI

1. Human computer Interface

2. Key Terms

   • operating system
     • Is the core of a software it allows a computer to run useful devices

3. GUI

   • Graphical User Interface
   • Features
     • Windows
     • Icons
     • Menu
     • Pointer
   • user friendly

4. common line Interface

   • Allows the user to communicate directly with the computer system by typing in commands
   • can be confusing to user that are not used to the commands
   • if you mistype in a command you have to start all over again
   • Large number of commands you have to learn
   • you can't just commands
   • doesn't use much computer processing compare to others
   • uses up less memory and RAM compared to other user interface
   • Doesn't require windows to run
   • if the users know correct commands this interface can be a lot quicker than others
   • You can use a command line on a low resolution and cheap monitor

5. Biometrics

   • Hardware is more expensive
   • measuring a unique part of your life such as ....
     • Finger prints
     • eyes- iris
   • concerns that the government or police might get access to this
   • harder for people to fraud this unique parts of life

6. Menu Interface

   • can be verbal/ visual
     • telephones
   • example ATM (cash machine)
   • allows the user to interact with computer or device by go through a series of menu
   • Advantages
     • useful to impaired users as there is no visual images or icons
     • doesn't use up much memory or computer processing
     • users don't have to remember anything such as commands
     • its fairly easy for the software programmers to change the language of the menu interfaces
   • Disadvantages
     • if writing is to small or colours clash making it hard to read
     • It can be boring or annoying for the users if there is to many menus or takes to long
     • You normally can't get to the exact place at the start of this process you have to work through it