Computer is our best friends. We need them in each and every point of our life. It is the most amazing creation of men. It helps us in performing our daily chores. In one word, we are simply blind without computer. Computers are performing most of our work in some few minutes. It has reduces human labor. Nowadays we can store all our important information in computer. Whenever we need those information we simply need to log on tour computers and all our valuable information will be in front of us.

However we hardly think about the fact we are coming in contact with different types of computer memory every day. Many of them also become an integral part of our vocabulary. It is known to all of us that there are two types of computer memory. They are volatile memory and non volatile memory.

While volatile memory refers to static RAM and dynamic RAM, they are temporary storage devices. All information gets lost along with time. But non volatile memory helps in storing information for permanent basis.

We store and transfer all kinds of files on our computer. They can be digital photograph, music files, and word processing documents and so on. Every time we don’t want to save all those files in hard disk. In that case digital flash memory card is the best place to store your media files. Digital flash memory cards are portable storage devices. It is used for easy and fast information storage in computers. It is also known as solid state storage device.