Memory Back-up

Abstract

Putting a program into the computer’s memory using a keyboard, even if it is a relatively simple program, can be quite tedious and is prone to ‘finger trouble’: pressing the wrong keys by mistake. Even then, after putting our program in correctly, when the power is switched off the program is lost because it will have been stored in the computer’s RAM. To be used again, we need to laboriously type in the program once more. In the case of large commercial programs this would not be practical. Furthermore, with these large programs you need a large internal memory; the memory size of the computer can sometimes be inadequate for the large programs which means that parts of programs need to be saved somewhere, or off-loaded, until they are needed in the computer.