USER INTERFACE

USER INTERFACE:- A place/platform that allows users to communicate with the computer.

 NOTE:- Below are the 2 types of user Interface;

• Command Line Interface
• Graphical User Interface

COMMAND LINE INTERFACE (CLI):- A type of user interface where a user types in instructions to choose options from menu.

NOTE: - CLI is used by programmers, analysts, or technicians (somebody who needs to have direct communication/contact with a computer to develop new software).

• A user needs to learn commands to carry out the basic operations.
• A user is in direct communication with the computer.
• It's very slow to finish a task (Its full of commands)

ADVANTAGES:

• A user is in direct communication with the computer. ( This is good for IT technicians and system administrators when troubleshooting computer problems)
• It doesn't take much space on RAM and Storage devices. The file sizes are in Kb (kilobyte)

DISADVANTAGES:

• A user needs to learn commands to carry out basic operations.
• It's a very slow process to run a sequence of events.

GRAPHICAL USER INTERFACE (GUI):- A type of user interface where a user interacts with the computer by using graphs (pictures and icons) instead of using commands. 

NOTE: Graphical User Interface uses WIMP (Windows Icons Menu and Pointing devices) which were developed for use on personal computers. A mouse is used to control a cursor and icons are selected to open/run windows.

ADVANTAGES:  

• A user doesn’t need to learn any commands.
• A pointing device such as a mouse is used to launch applications.
• Pictures and Icons are used instead of using commands.

DISADVANTAGES:

• A computer requires more RAM and storage space to support pictures which takes up more space.
• A user is not in direct communication with the computer.

NOTE: - GUI is used by the end-user who doesn’t have any great knowledge of how the computer works in Command Line Interface;