A part of performance enhancements, file compression helps in increasing storage capacity by reducing the amount of space required to store data and programs. Hard-disk and floppy disk usually compresses files in order to speed up transmission of computer system files, form one device (computer) to another. File compression is done by reducing storage and find repeated pattern of the same data and thus it will shrink files. Technically, file compression reduces files size.
Head crash is a situation where hard disk's surface makes contact with particles, commonly hair or dust. In a context, it meant, the hard disk being hovered a few inches away. Head crash is considered a disaster for a hard disk because once the surface is scratched, the possibilty of data and information missing is higher. This is most common for floppy disks.
Special service sites on the Web which provides users with storage is called an Internet hard drive. It is used as a specialized secondary storage device because of some limitations like the availability and security procedures of certain sites. Thus it is not used for storing highly personalized or sensitive information. It focuses on providing faster access and greater security for a certain amount of fee.
Optical Disc Drive
Optical disc drive reads optical disks where 1 and 0s are represented by flat areas called land and pits. Using a laser that projects light beams, reflected lights detects the binary codes by the amount of light relected. Optical disks use single track that spirals towards the center of the disc. It us usually installed in the drive bay in computers. Some ways to care for these disks drives are; store disks in jewel box when not in use, do not eat, smoke or drink near a disk, do not expose the disk to excessive heat or sunlight and hold disks at its edges.
Solid State Storage
It is typically a storage device that uses flash memory to store data, information and instructions. Several advantages over this storage are the multiple transfer rates. access times, generates less heat and power and lasts longer, preferably over 50 years of lifespan. However, they have higher failure rate and costs much more expensive that hard disks drive.
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