There are two that you need to be aware of:
- Graphical User Interface (GUI)
- Command-Line Interface (CLI)
Graphical User Interface (GUI)
- Windows are regions of the screen used to display information
- Icons are small pictures that are used to represent folders, software, etc.
- Menus are lists of options the user can select from
- A pointer is an arrow that can be moved around the screen and is used to select things
However, to display all of the nice graphics required by a GUI takes a lot of computing power so quite a powerful computer is needed.
Command Line Interface (CLI)
The user would see nothing but a black screen. They would have to type a command to make anything happen.
e.g. To copy a text file called NOTES from a floppy disc to the hard drive the user would have to type:
> COPY A:\NOTES.TXT C:\
This meant computers used to be quite difficult to use, so this type of interface is only really suitable for expert users.