RAM stands for "Random Access Memory". It also known as temporary Storage. Then life span of the files stored in your computer RAM is only till its next reboot. When you open any software or program or even any files in Computer, it is stored in your RAM for instant access to that file, whenever you look for it. This is the reason when you open too many software’s/files or doing multitasking your system get slows down, freezing or hanging for a while or not responding