HardDisk

Hard Disk is storage device in computer to store your work and data.

Main point is the larger drive is better. That apart to choose the right hard disk needs more attention because its very typical to further change this part as you save your money time and difficulties like backup/reinstall/customization and lot.

You need to understand the general factors that affects the performance and durability of disk drive.these are:

Seek time: It should be faster. It is measured in milliseconds lower rating indicates faster so it should be less.
RPM: It should be highest possible.
Transfer rate: It should be high.
Cache buffer: The value should be in range of 128 to 512kb for better performance capacity of drive ranging from 2 to 9Gb.
Transfer Mode: it should be Ultra ATA/DMA but should be supported by Mother Boards.

Compare these factors by visiting following top Hard Disk Manufacturer from their own web.

Top Hard Disk Manufacturer

Quantum

Seagate

Western Digital

Maxtor

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