windows 系统简介(国外英文资料).doc

windows 系统简介(国外英文资料) If you use the Windows XP operating system, so please pay attention to regularly defragment the hard disk, disk defragmenter will make your computer run faster. 1. why do we need defragmentation The files on the disk layout will strongly affect the performance of the I/O, seriously fragmented or scattered in disk files and directories will damage the performance, while Windows XP will automatically re locate some files to improve performance, but usually, it does not belong to the system must be regular, and usually also contains only a very small part of the file on disk. From this point of view, should be installed in the system immediately after the end of a complete disk defragmentation. By default, WindowsXP every 3 days will perform a partial defragmentation, and adjust according to the use of the physical location on the disk file, move the file will be written to the Layout.ini file, it is Windows XP that should be in accordance with the order to arrange the files on the disk physical location, the file the path in C:\Windows\Prefetch. The system will automatically defragment the hard disk during idle time, this will be the first to read the contents of the Layout.ini file, and for which relates to file for local disk defragmentation, which is the position of the file transfer program arrangement. 2. understand the Prefetch directory In the Windows XP and the operating system, increase the prefetch function (also can be understood as pre loaded), which can improve the performance of the system, accelerate the system start-up, file reading speed, reading these files stored in the%systemroot%\Prefetch directory, *.pf extension, including the *.pf file detailed information and load the file load order. Each application program, start the process including Windows XP, will leave the corresponding pre reading files in the PrefetCh directory, the pre loading sequence reads a file describing the application or the start of each module, its nam