Human Computer Interface

Human Computer Interface

1. Graphical User Interfaces (GUI)

   • Advantages
     • low ICT skill or level needed to operate
       • Easy to use
     • Pictures can be more meaningful than words
       • Help younger users
       • Help disabled users
   • Disadvantages
     • Can be large and complex
       • Take up resources
     • Can make the computer run slower

2. Menu Driven Interfaces

   • Advantages
     • Easy to navigate through
     • User input is validated because only the options shown can be used
   • Disadvantages
     • Some options may have no use for a particular user
     • Can be difficult to locate an option if there are a high number of menus and sub-menus

3. Command-Line Interfaces

   • Advantages
     • instructions are executed quickly
     • Instructions are versitile
       • Large number of options can be picked per Instruction
     • Small operating system
       • Less memory used
   • Disadvantages
     • Special instructions need to be learnt
     • Need to type instructions preciselly
     • Complex levels with some commands
       • High ICT level or skill needed

4. Touch sensitive Interfaces

   • Advantages
     • Low level or skill in ICT needed
     • Less possibility of theft
     • More practicality in some environments where a keyboard cant be used
       • Extream cold and user has gloves on
   • Disadvantages
     • Can become dirty and scratched
       • Makes it difficult to read
     • Higher cost than mouse, keyboard and normal monitor