Well Formatted Question:
The _______ of the operating system enables users to communicate with the computer system.
a) modem
b) window
c) network adapter card
d) user interface
Answer:
(d) user interface.
Explanation:
A user interface acts as a middleman between the user of a computer and the operating system of that computer. With the user interface, a user can easily communicate with the computer system including the applications running on it.
The user interface can either be text-based or graphics-based.
With text-based user interface, the user enters commands (using keyboards) in form of texts basically on the command line and then the operating system executes these commands.
With the graphical user interface, users interact with the computer using graphics-like control items such as buttons and menus to give instructions to the computer.
