بیشترتوضیحاتافزودن یادداشت جدید next chapter.Observing the life of a file is an illustrative way to summarize some of the important concepts presented in this chapter. When a program instructs the operating system to create a file, the first step is to find an available space on the disk where the data can be stored. The file system serves this purpose, reserving the necessary clusters. Then the read/write heads of the hard drive are moved to the proper track and, when the disk spins to the correct sector, a binary representation of the data is created by altering the surface of the disk. When the file is deleted, the space in unallocated - the file system is updated to indicate that the clusters are available for new data. However, until these clusters are reused, the original data remain. Even when one of the clusters is reused, some of the original data will remain in file slack space.
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