81776
Description
User Interfaces
- Command Driven User Interfaces
- User has to type special command words
- DOS = Disk Operating System
- Commonly used interface
- Commonly used interface
- Can be quick to use as long as user knows
the right commands
- Very hard to use if user is a beginner or doesn't know the right commands
- User has to type special command words
- Menu-Driven Interfaces
- Offers the user a
list of options
- Options selected by particular
keys on the keyboard
- Most menu-driven systems have a
main menu
- Main menu has options
that offer users other
menu screens
- Easy to use
- Can be quite 'longwinded'
- Offers the user a
list of options
- Graphical User Interface
- Most widely used type of GUI = WIMP system
- WIMP = Windows Icons Menus Pointers
- WIMP = Windows Icons Menus Pointers
- Options represented by
small picture called Icons
- Programs are arranged in
rectangular boxes called
windows
- Easy to use especially
for beginners
- Needs a lot of RAM to run properly
- Takes up a large amount of hard disk space
- Most widely used type of GUI = WIMP system
- User Interface Design
- user-friendly
- The way different parts operate should be consistent
- Layout of screen should be consistent
- Colours should make it easy to see
- Sound can be used to alert user,
but should also be able to be
disabled
- On-line help
- user-friendly
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