How many types of software are there? Explain each system software.
There are two types of software
System Software
Application Software
System Software: System software is a collection of program designed to operate,
control and manage the actual operation of the computer equipment. System software is
developed by manufacturers to provide software tools that enable the user to write and
run application software.
An operating system of computer system by performing tasks such as controlling all
the operation. Moving data into and out of the computer and all the other steps is
executing the application programs. The programs included in a system in a system
software package are called system programs The programmers who prepare system
software are referred to as system programmers.
System software supports the followings:
Running of other programs
Supports development of other application software
Communicating with peripherals devices such as card reader, printer etc
Development of other types of software
Maintaining the use of other various hardware resources such as memory,
peripherals, CPU etc.
Types of System software
a) Operating System
It is an integrated set of specialized program that is used to manage the resource and
overall operations of the computer. It acts as the mediator between hardware and the
computer application programs.
Operation system software makes a computer easier to use. It hides the details of
hardware resources from users and provides them with a convenient interface for using a
computer system. It acts as an intermediary between hardware and its users, providing a
high level interface to low level hardware resources, and making it easier for programmers
and other users to use those resources.
Operating system software manages all the resources of a computer system. This
involves performing such tasks as keeping track of who is using what resources, granting
resources request , accounting for resource uses and mediating conflicting requests from
different programs and users. Efficient and fair sharing of system resources between users
and hardware programs is the main function of any operating system software.
Features of operating systems are as follows:
. To make a computer system convenient to use in an efficient manner
To hide the details of the hardware resources from the users
To provide users a convenient interface to use the computer system
To act as an intermediary between the hardware and its users and making it easier for the
users to access and use other resources
To manage the resources of a computer system
To keep track of who is using which resource, granting resource requests, according for
resource using and mediating conflicting requests from different programs and users
To provide efficient and fair sharing of resources among users and programs
Eg. Windows 95/98/2000 ,XP,NT,Vista, Linux, Novel, Netware, MS Dos, Windows 7/8/10,
are popular operating system
Language processor /Translating Program
The program or software which translates instructions written in human convenient
form to machine language code is called language processor or translating programs. The
program translated by the language processor is understood by the hardware of computer
system.
Compiler: Compiles the whole program into machine language or high level language into
machine level language or source code into object code.
Interpreter: Translate single line at a time or single source code to object code.
Assembler: Translate low level language into machine code.
Utility Software:
A program that performs a very specific task usually related to managing system
resources .Utility software are also knows as service program,. Operating system contains
a number of utilities for managing disk drive, printers and other devices. It helps the user
to manage files folders checking virus, keeping pc healthy and system setting are called
utilities software. Antivirus, defragment, chkdisk , backup
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