Monday, 12 September 2011

CoMPuTeR SoFTWaRe

Computer software, or just software, is a collection of computer programs and related data that provide the instructions for telling a computer what to do and how to do it. In other words, software is a conceptual entity which is a set of computer programs, procedures, and associated documentation concerned with the operation of a data processing system. We can also say software refers to one or more computer programs and data held in the storage of the computer for some purposes. In other words software is a set of programs, procedures, algorithms and its documentation. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software is intangible, meaning it "cannot be touched". Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes, and records.

MuLTiMeDia

*Multimedia is media and content that uses a combination of different content forms.
*The term can be used as a noun (a medium with multiple content forms) or as an adjective describing a medium as having multiple content forms.
* The term is used in contrast to media which only use traditional forms of printed or hand-produced material. *Multimedia includes a combination of text, audio, still images, animation, video, and interactivity content forms.

CoMPuTeR ViRuS

A computer virus is a computer program that can replicate itself and spread from one computer to another.
The term "virus" is also commonly but erroneously used to refer to other types of malware, including but not limited to aware and spyware programs that do not have the reproductive ability.
Viruses can increase their chances of spreading to other computers by infecting files on a network file system or a file system that is accessed by another computer