08-12
12

Something about disk formatting

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AuthorEASEUS   Category Basic Computing Guide   Comments0   Post Time 2008-12-12 03:59:51 -0500

There are two different way to format a disk: low-level and high-level formatting. The former deals with something wrong about the disk surfaces. While the latter deals with specific information written by the operating system. And we usually talk about formatting is high-level formatting.


Computer must be able to access needed information on command; however, even the smallest hard disk can store millions of bits. How does the computer know where to look for the information it needs?


To solve this problem, hard disks are organized into discrete, identifiable divisions, thus allowing the computer to find any particular sequence of bits easily. High-level formatting is the process of setting up an empty file system on the disk, and installing a boot sector. This alone takes little time, and is sometimes referred to as a "quick format".


As with regular deletion, data on a disk is not fully destroyed during a high-level format. Instead, the area on the disk containing the data is merely marked as available (in whatever file system structure the format uses), and retains the old data until it's overwritten. In this case you can recovery your data through some data recovery software, such as Data Recovery Wizard

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