Monday, 14 May 2012

Software : Type of Software

Software is a program which consists of a set of instructions that tells the computer how to perform a specific  operation.
A computer is just a machine with no special benefits without software.

CATEGORIES OF SOFTWARE
Software can be divided into two categories, which are:

System Software
Software that is used to control and manage computer devices and operations.

Application Software
Software that is used to help a user perform a task and solve a problem.

SYSTEM SOFTWARE
System software refers to all programs that help the computer to function properly. The most important type of system software is the computer’s operating system, which enables the computer to start, such as Microsoft Windows, MS-DOS and Mac OS.
Other types of system software include system utilities such as file compression (zip program) and antivirus programs.


APPLICATION SOFTWARE
Application software are all programs that perform specific tasks for users, which include word processing, spreadsheet, database, presentation, e-Mail and Web browser software. Examples of application software are Microsoft Word, Microsoft Excel, Outlook Express and Internet Explorer.


SYSTEM SOFTWARE VS APPLICATION SOFTWARE

The differences between system software and application software.



WHAT IS SYSTEM SOFTWARE
A system software is a program that controls or maintains the operations of a computer and its devices. A system software also serves as the interface between the user, the application software and the computer’s hardware.

There are two types of system software:
  1. operating system
  2. utility program
 
OPERATING SYSTEM
An operating system is a set of programs that coordinates all the activities among the computer hardware devices. In most cases, the operating system is installed and resides on the computer’s hard disk.
However, on handheld computers and many mobile devices such as PDAs and smart phones, the operating system may reside on a ROM chip.
The operating system that a computer uses sometimes is called the platform.


UTILITY PROGRAM
A utility program which is also called a utility is a type of system software that allows a user to perform maintenance-type tasks usually related to managing a computer, its devices or its programs.

ANTIVIRUS
Antivirus is a program that protects a computer against viruses by identifying and removing any computer viruses found in a memory or storage media or in incoming files.

DIAGNOSTIC UTILITY
Diagnostic utility is a utility program that compiles technical information about a computer’s hardware and certain system software programs and then prepares a report outlining any identified problems.

FILE MANAGER
File manager is a utility program that performs functions related to files and disk management.

SCREEN SAVER
Screen saver is a utility program that enables a display device’s screen to show a moving image or blank screen if no mouse activity occurs for a specified time.

THE DIFFERENCES BETWEEN OPERATING SYSTEMS AND UTILITY PROGRAM


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2 comments:

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  2. This is best blog you are proving some knowledge types of software.
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