It is difficult to state what the world’s biggest directory or index is. When it comes to Web directories, one of the leading candidates is the DMOZ website. It has 4,814,779 sites in 1,004,396 categories. But giving exact figures is difficult. The nature of the subject means it is always bein
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PDF stands for Portable Document Format, which was created by Adobe Systems in 1993 as a file format designed for document exchange. Independent of the operating system, hardware and application software, it is used to represent documents that are two-dimensional. Every PDF file comes with a full de
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An allocation unit size refers to the minimum space a storage device will set aside for a file. For example, a unit of 4k means a 1k file will take up 4k of disk space. A 10k file will be allocated 12k of space. The smaller the allocation, the less space is wasted. The drawback with very small alloc
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