Hard Disk Drive

The technology is advancing at a rapid pace offering us many alternatives to improve our comfort level. Earlier people used to rely on labors for different tasks however, now we have various devices that save money. Computers have become an important part of our daily lives, as we can perform many tasks on a computer. Computers have an integrated hard disk drive that controls and maintains reading, writing and positioning of hard disk. This is the main component of computer, which accommodates bulk information easily. Hard disk drive has a revolving magnetic surface.

They are fixed in the computer permanently and cannot be taken out like other devices such as floppy disks or CDs. All your information and data is stored in hard disk. This is a place where all the programs and information are stored. This is the most essential and permanent storage device in a computer. Hard disk drives also play an important role in maintaining the overall performance of your computer. These drives also play an essential role in multitasking. You need to have a good hard disk drive in your computer. You may lose all your data and information when the hard disk drive fails to function. You always can purchase a new hard disk however, you cannot recover the lost data.

The hard disk drive has the following components:

  • Spindle
  • Base casing
  • Sliders
  • Actuator
  • Actuator axis
  • Actuator arm
  • Interface connector
  • Electronic board
  • Ribbon cable and power connector
  • Round shaped platters

Hard disk drive contains platters, air filter, motor, write/read heads and frames. The frame in hard disk drive contains mechanical parts that are sealed in a cover. The assembly of hard disk drive is kept in sealed part of the drive. The electronics of hard disk drive contain a number of printed circuit boards that are installed at the bottom of hard disk assembly.

The ribbon wire attaches slider with electronic board. The wire connector on the edge is situated on the casing wall that is attached to the electronic board. Power connectors are also located inside the casing walls. The hard disk receives power from the power connector for functioning.

The platters in hard disk are rotated at optimum speeds. Each of the platters contains a slider that is closely connected to the surface of platter. The slider is attached to actuator arm and moves from outer side of platter to inner side providing an access to entire area of hard disk. These platters have a coat of magnetizing material. In addition, the sliders always come with read and write devices. Usually, this is used as an induction coil.

The write/read device either magnetizes a small part of disk or detects the magnetic orientation in the small portion. The read/write device changes the magnetic orientation in the small part of hard disk drive. This is the process by which data or information is written and stored on the disk. By detecting magnetic orientation on disk, the read/write device reads the code. This is the process by which data or information is being interpreted from disk drives.

Normally, hard disk drive records information by directionally magnetizing the material in binary digits such as zero or one. These read/write devices easily read the data in magnetized form. There are many companies making hard disk drives these days. In fact, many of these companies are specialized in creating latest hard drives that have high-speed data accessibility and transfer of data for swift computing experience.

This Hard Disk Drive Review is Written/Updated on Jun 26th, 2010 and filed under Computer Hardware. Both comments and pings are currently closed.

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