Hello! Amar, clrscr() is a function in C language. The expansion of clrscr is "Clear the screen". This function is used to clear the information that is already displayed on the monitor screen. Hope this information is useful to you. Bye.
Storage Device is a device to store our data or to transfer our data from one place to another. Normally, the first storage device is Magnetic Tape. Then it undergoes to many conventional changes, we get Magnetic Drum, Floppy Disk (2 types), Hard Disk, Compact disk (popularly known as CD) and Digital Versatile Disk (DVD, … Read more
When you have more choices to choose, then use 'What'. If you have limited or specified choices, then use 'Which'.