human computer interface

human computer interface

1. GUI(wimp)

   • disadvantages
     • take up much larger amounts of hard disk space than other interfaces
     • take up significantly more memory
     • they can be slow for experienced programmers to use
   • advantages
     • easy to use good for beginners
     • you dont have to learn complicated commands
     • they let you exchange data between different interfaces

2. command line

   • disadvantages
     • for someone who hasnt ever used cli it can be very confusing
     • if you mis-type an instruction, it is often necesary to start from scratch
     • commands have to be typed precisely
   • advantages
     • doesnt require windows to run
     • the type of interface doesnt use as much CPU processing time
     • a low resolution, cheaper moniter can be used with this type of interface

3. Menu interface

   • advantages
     • no commands to learn or remember
     • extremely easy to use
     • step by step intrusctions are given so the user doesnt have to remeber anything
   • disadvantages
     • a porly made menu interface may be slow to use
     • it may be irritating if there are too many menu screans to work through
     • the menu can take up a large amount of the screan

4. touch sensative

   • disadvantages
     • need to understand the language or the meaning if the icons to use
     • only limited options can be offered
     • not so good if the sunshine on the screan it is hard to see
   • advantages
     • intuitive to use
     • you can see all the options available
     • dont need good ICT skills such as typing to be able to use

5. sound and speach interface

   • advantages
     • the user does not need to be trained
     • more flexability than a diolgue interface
     • suitable for physically handicapped people
   • disadvantages
     • reliability is an issue
     • not widely availible as other forms of interface are often superior
     • a voice interface might need training