SOFTWARES

GENERAL PURPOSE APPLICATION SOFTWARE:
General purpose packages are very popular because their documentation(manuals,tutorials,etc) is usually excellent,programs are well tested and they are inexpensive.

EXAMPLE:
Microsoft words and spreadsheet


SPECIAL PURPOSE APPLICATION SOFTWARE:
These softwares are built for a particular requirement.

EXAMPLE:
The traffic control department would need this software to operate trafficlights, a big database for a bank.

PROGRAMMING LANGUAGES:
Programmers use different types of programming languages which are used as set of instructions or commands to form a program.

EXAMPLE:
visual basic ,java





OPERATING SYSTEM:
Operating system is a complex program that controls entire operation of the computer.
The means of communication between user,system hardware and software is called the user interface. Via the user interface, the user indicates what he/she wishes to do, and the operating system provides the routines that are needed to allow the hardware to interact with application software.

EXAMPLE:
linux,windows vista

UTILITY PROGRAMS:
Utility programs perform common tasks such as formatting disks,copying and deleting files or repairing damaged files.

EXAMPLE:
Anti virus, disk defrag