When we talk about the storage devices; there are many types and different kinds of storage devices are available. The classification may be different for the different types of the storage devices. Like in one terminology the storage devices may be of the kind of volatile or non volatile. This means that the storage devices come in two different types. The first one that is discussed is the primary memory which is a type of volatile memory device. The memory is volatile in the case that when the power is switched off the data contents in the memory gets erased and the data is stored in the primary memory only until the power is on. This is the type of volatile memory.

The examples of this may include the RAM’s etc. The RAM is also available in different types. Like the one variant for the RAM is the NV RAM. The NV stands for the Non Volatile memory. This type of the memory is discussed in the following section.

The non volatile memory may be of many types like the magnetic media, optical storage media, flash memory etc. The contents in this type of the memory are non volatile that is the contents even exist even if the power goes off. The contents or the data is stored over the memory in this case. Suppose even if there is a power failure also; even then the contents remain intact.

The data stored over the non volatile memory can be erasable or even non erasable depending upon the type of the storage devices such as the optical or the magnetic media. The non volatile memory offers huge storage capacity and is not much expensive either in the comparison along side with the volatile memory. The RAM is usually called as the volatile memory, since the contents are erased when the power goes off. But there are some types of the RAM that are available; which are non volatile in nature. Such RAM is called as the non volatile RAM. The non volatile RAM stores the contents for at least some amount of time after the power failure.

The types of the storage devices include the Tape drive and the optical drives and the magnetic media. The secondary memory devices are available in plenty in the form of all the above mentioned storage devices. The most popularly used among them all is the hard disk drive. The hard disk drive is considered as the most necessary component of the computer system. The next that are available is floppy disk drive. The floppy is also used for the backup and the archive process of the data.

The other devices such as the optical storage media include the CD or the DVD drive. They are the drives that are optical in nature. The different types of the storage devices are the floppy disk drives, the hard disk drives, the CD drives, the DVD disk drives and the USB memory devices, the flash memory devices etc. The flash memory is expensive but the device is handy and portable for the data transfer. For most of the data transfer reason the data storage device that is used is the floppy disk drive. But after the availability of the flash memory device the floppies are decreased in use. The hard disk drives and the CD drives are available in both the forms of internal and the external devices.

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Pen Drives

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