Human-computer interface.

Human-computer interface.

1. GUI (WIMP)

   • Advantages
     • This type of user interface is easy to use espeshille for beginners
     • it is easy to explore and findways aroundthe system usinga WIMP/GUIinterface
     • You do not have to learn complicated commands
     • There are usually a reasonable 'help' system included with WIMP interfaces
     • You get the benefits of WYSIWYG
     • They let you exchange data between different software applications
   • Disadvantages
     • GUIs take up a much larger amount of hard disk space than other interfaces
     • system using a WIMP/ GUI interface They need significantly more memory (RAM) to run than other interface types
     • They use more processing power than other types of interface
     • They can be slow for experienced programmers to use. These people often find CLI interfaces much faster to use

2. command line

   • adventages
     • If the user knows the correct commands then this type of interface can be much faster than any other type of interface
     • This type of interface needs much less memory (RAM) in order to use compared to other types of user interfaces
     • This type of interface does not use as much CPU processing time as others
     • A low resolution, cheaper monitor can be used with this type of interface
     • A CLI does not require Windows to run
   • disavdtages
     • For someone who has never used a CLI, it can be very confusing
     • Commands have to be typed precisely. If there is a spelling error the command will fail
     • If you mis-type an instruction, it is often necessary to start from scratch again
     • There are a large number of commands which need to be learned - in the case of Unix it can be hundreds
     • You can't just guess what the instruction might be and you can't just 'have a go'.

3. menu interface

   • Advantages
     • Extremely easy to use. Someone who has never seen the interface before can work out what to do
     • There are no commands to learn or remember
     • Step-by-step options are given so that the user doesn't have to remember anything
   • Disadvatages
     • A poorly designed menu interface may be slow to use
     • It can be irritating if there are too many menu screens to work through - users get annoyed or bored if it takes too long
     • You often can't go to the exact place you want right at the start. You have to work your way through the menu screens even if you know where you want to get to.

4. speech and sound

   • Advrnages
     • east to use
     • The user does not need to be trained in how to use the interface
   • Disaveages
     • relablety
     • Not widely available as other forms of interface are often superior

5. Touch sentive

   • Advantages
     • low level ict skills needed
     • less posably of thefted
     • more pratical in some place
   • Disavdges
     • become smashed and brocken easier
     • cost more