The operating system controls the computer by providing an interface between the user and hardware to make the computer more convenient to use. It manages processes, memory, files, security, and interprets commands. The operating system allows users to start and stop processes, allocate memory, create and manage files and directories, implement security measures like passwords and firewalls, and interacts with users through either a command line or graphical user interface.

2.  operating system is the set of programs
that controls a computer.
 It provide a pleasant and effective
interface between the user and the
hardware
 Makes the computer more convenient
to use

5.  Process Management
 Memory Management
 File Management
 Security management
 Command Interpreter

6.  Byprocess management OS
manages many kinds of activities
:-
All process from start to shut down
Creation and deletion of user and
system processes.

7.  The major activities of an
operating regard to memory-
management are:-
 Decide which process are loaded into
memory when memory space becomes
available.
 Allocate and deallocate memory space as
needed.

8.  The file management system
allows the user to perform such
tasks:-
Creating files and directories
Renaming files
Coping and moving files
Deleting files

9.  Bysecurity management OS
manages many tasks such as:-
Alert messages
Dialogue boxes
Firewall
Passwords

10. A command interpreter is an
interface between system and the
user. There are two types of user
interface:-
Command line
Graphical user interface

11.  With a command line user interface the
user interact with the OS by typing
command to perform specific tasks
 With a graphical user interface the user
interacts with the OS by using a mouse to
access windows icons and menus