Page 15 - KEC Khaitan C3 Flipbook
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Digital Versatile Disc or DVD: A digital versatile disc looks like a CD
                 but can store six times more data than a CD.
                                                                                                             DVD

                                       Pen drive: A pen drive is a very small and a light portable device
                                       that can store and transfer data from one computer to another.
                                       A pen drive can store more data than a CD or DVD. It is also
                    Pen drive          called a flash drive.



                                                                                                     PURE
                         The first hard disk was introduced by IBM. It could store one MP3 song only.   FACT





                           SOFTWARE


                 A computer hardware has numerous features, but it cannot perform a task until

                 certain instructions are given to it. Hardware needs step-by-step instructions to
                 perform a task. A set of instructions given to the computer to perform specific tasks

                 is called a Program. A collection of programs is called a Software. It also helps
                 the computer hardware to process the input and convert it into output. Without
                 software, a computer is like a car without fuel. Software are mainly of two types:


                                                            SOFTWARE




                                System Software                                Application Software


                 SYSTEM SOFTWARE

                 System  software is a set  of programs that control the overall  functioning  of a
                 computer. They are designed to operate, control, and run a computer's hardware

                 and application programs.

                 When we switch on a computer, the system software prepares the computer for you to
                 work on it. It loads important files so that you can work and run the application software.

                 The operating system is an example of system software. Without an operating system,
                 a computer cannot function. It acts as a manager between the computer hardware and
                 the user. Microsoft Windows is the most popular operating system available today.






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