HCI (Human Computer Interface)

HCI (Human Computer Interface)

1. Disadvantages

   • Can make computer run slow

2. Advantages

   • Low Level Of Ict Skills needed
   • Pictures can be more meaningful that words
   • Graphical User Interfaces
     • Pictures,icons and menus

3. Command Line Interface

   • Disadvantages
     • Need to learn specific instructions
     • Need to type instruction precisely.
   • Advantages
     • Instructions excute quickly.
     • Small Operating Systems (Less memory used)

4. Touch Screen Sensitive

   • Disadvantage
     • Can become dirty/scratched
     • Higher cost than a mouse
   • Advantages
     • Low level of Skills needed
     • Less chance of Theft

5. Biometrics

   • Fingerprints
   • Voice Patterns
   • Eye Scanner
   • Facial Recognition
   • Hand Prints

6. An Operating System

   • It loads and runs a programme
   • Maximises the use of memory
   • Deals with interruptions
   • Maintains the security of the system