Computer Storage Devices
Computer storage devices are used to store data so that it can be accessed later on. One of best examples of a storage device is the hard disk. In the earlier days, hard disks were not the de facto standard part in a personal computer. However, these days you cannot find a personal computer that doesn’t have a hard disk. The technology involved behind hard disks has improved tremendously. 10 years back, it was difficult to find hard disks exceeding a capacity of 2-3 GB, but now hard disks with 250 GB capacity have become very common. This is the way technology has progressed.
RAM i.e. Random Access Memory is another example of a computer storage device. The RAM is where the computer stores the data that is is executing. As the name suggests, data stored in the RAM can be randomly accessed by the microprocessor and that too at a much faster rate when compared to other means of storage like the hard disk.
Other common computer storage devices include the CD, DVD and the USB drive. In servers, tape drives are also used to back up data. Years ago when main-frame computers were in use, tape drives are used extensively. However, now tape drives are no longer popular as other means of mass storage like CDs and DVDs are more advantageous.
In the years to come, computer storage devices will become more and more efficient. Their capacities will also increase tremendously. We are already about to see hard disks with capacities ranging into terabytes (i.e. 1024 GB). Other storage devices like USB disks and optical media are also predicted to go into the terabyte range.