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Media storage USB is also used as an alternative to CDs and DVDs.

Storage devices are used to store data in the computers. These devices come in many sizes and shapes. The storage devices are one of the most significant components of the computer system. The memory is of two types, the primary and secondary memory. 

The primary memory is the volatile memory, which is also known as volatile storage, is a computer memory that requires power to maintain the stored information that is erasable. The secondary memory is the non volatile memory, less popularly known as temporary memory, unlike the primary memory which does not require a maintained power supply.

Files, databases, digital video and the audio, can be forms of different storage devices. The storage devices that are called as the non volatile can store the data for good until otherwise erased purposely. This is inspecting of the hard disk drives or the floppy disk drives. The other kinds of the storage media like CD's and DVD's can even have again two types of the storage; is stored permanently over it, which means that once written it cannot be erased. Another type of CD’s or the DVD’s are called as the rewritable, where in the data that is once written can be erased completely and the same storage device can be used again for storing the different data.

One of the types of media storage is the USB flash drive which plays an important role in dominating the market. A USB flash drive contains flash memory data storage device integrated with a USB (Universal Serial Bus) 1.1 or 2.0 interface. USB flash drives are removable and rewritable, and physically smaller than a floppy disk. A USB flash drive is much known because of the size and the compactness. It behaves as if it is the portable hard drive where you can carry anywhere. It has provisions gives you the option of transferring data that is most important. Information/ data transfer is an important part of any computer system. This type of the storage media can be used also for back up or archiving small but important data like personal or business emails etc.

Media storage USB is also available in the form of a mp3 player. This is an entertainment gadget that is commonly used in the new generation. This device is also built with a radio and an FM player. The connectivity to the computer is also easy and usable. The USB drives are easily attached to the computer through the USB socket.

Storage capacities can be as large as 256 GB with steady improvements in size and price per capacity expected. A GB (Gigabyte) or an MB (Megabyte) refers to the amount of information that can be stored or already used in the USB media storage, to quantify computer memory or storage capacity. The USB drives are very fragile and should be handled with care. In case the devices have been fallen or dropped the device may easily sustain any physical damage. The efforts of research and development are being made in this area for the development of the technology.

The USB mass storage specification does not need any particular file system to be used on conforming devices. Instead, it give simple interface to read and write sectors of data. Operating systems may handle the media storage USB drive like a hard drive, and can format it with any file system they like. Because of its relative simplicity, the most used file system on embedded devices such as USB flash drives, cameras, or digital audio players is Microsoft's FAT or FAT32 file system with support for long names. Large USB-based hard disks may be formatted with NTFS, which is much less supported outside Microsoft Windows. However, a key drive or any other device may be formatted using another file system. This choice may restrict other operating systems ability to access the contents of the device. In cameras, MP3 players, and similar gadgets which can access the file system independently from an external host, the FAT32 file system is typically recommended by device manufacturers.

In earlier times, the USB drive needed as software driver that was to be installed in the operating system. The earlier operating systems such as the windows 98, etc. does not possess any built in drivers. The drivers still need to be installed manually. The importance of the USB device is that it can be connected to the computer even when running. In most cases, where the other drives are to be connected the system needs to be shut down for the device to be installed. The files and the explorer can see normally in the explorer window. The USB flash drives use the protocol for the USB media storage devices to interoperate along with the PC and other devices that have a USB port. Mostly the USB flash drives utilize the technology of the mass storage class drivers. The same technique is used in the operating systems such as the Microsoft Windows new versions. 

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