2. DEFNITION:
It is a set of one or more programs that
are basically designed to control the
operation of computer system.
Application software
System software
Hardware
3. Uses of system software:
Running other software.
Communicating with peripheral devices.
Development of other software.
Monitoring use of various hardware
resources.
4. Types of system software:
System control programs
System support programs
5. System control programs
System control program control the use of
hardware , software and data resources of
the system.
The main system control program is the
operating system
6. Functions of OS
Memory management
Processor management
Device management
File management
Resource management
Fault tolerance
User interface functions
7. System support programs
System support programs supports the
operations management and users of a
computer system by providing a variety of
support services
Examples of system support programs are
i. system utilities
ii. System performance monitor
iii. System security monitors