Computers instructions or data Any thing that can be stored electronically is software. The storage devices and display devices are hardware.The terms software and hardware are used as both nouns and adjectives. For example, you can say: "The problem lies in the software," meaning that there is a problem with the program or data, not with the computer itself. You can also say: "It's a software problem.
Otherwise Software is the general term for information that's recorded onto some kind of medium. For example, when you go to the video store and rent or buy a tape or DVD, what you're really getting is the software that's stored on that tape or disk. Your VCR or DVD player are hardware devices that are capable of reading the software from a tape or disk and projecting it onto your TV screen, in the form of a movie.
Your computer is a hardware device that reads software too. Most of the software on your computer comes in the form of program s. A program consists of "instructions" that tell the computer what to do, how to behave. Just as there are thousands of albums you can buy on CD for your stereo, and thousands of movies you can buy to play on your VCR or DVD player, there are thousands of programs that you can buy to run on your computer. When you buy a computer, you don't automatically get every program produced by every software company in the world. You usually get some programs. For example, when you buy a computer it will probably have an operating system (like Windows XP) already installed on it.
If you do purchase a specific program, it would be to perform some specific task. For example, you might use a graphics program to touch up photos, or you might use a word processing program to write text. You're using your Web browser program right now to read this text (assuming you're not reading a printed copy on paper). Just as there are umpteen different brands of toothpaste, there are umpteen different brands of word processing programs, graphics programs, and Web browsers.
The distinction between software and hardware is sometimes confusing because they are so integrally linked. Clearly, when you purchase a program, you are buying software. But to buy the software, you need to buy the disk (hardware) on which the software is recorded.
Software is often divided into two categories:
Includes the operating system and all the utilities that enable the computer to function.
Includes programs that do real work for users . For example, word processors , spreadsheets , and database management systems fall under the category of applications software
Refers to the operating system and all utility programs that manage computer resources at a low level. Software is generally divided into systems software and applications software . Applications software comprises programs designed for an end user , such as word processors , database systems , and spreadsheet programs . Systems software includes compilers , loaders , linkers , and debuggers .
