Posted on January 25, 2009 - Filed Under General |
A file extension is the final end part of a filename that denotes the format of the file and indicates the encoding convention of its content. The file extension is usually a set of three to four letters that is separated from the rest of the file name through the use of a period. Some common file extensions include: file extension .gif, file extension .html, file extension .doc, file extension .txt, File Extension DLL, File Extension BIN, and file extension dmg. During the early years of the 1960’s, the Digital Equipment Corporation was the first to implement usage of file extensions. The file name was later broken into 2 parts: the base name and the file extension. With the advent of computer hardware and software over the years, Microsoft’s DOS operating system also adopted usage of file extensions, later on it was also applied to Windows, as well. Originally Microsoft restricted the base name to only eight characters and the file extension to successive three characters. This had a setback as the file names were somewhat restricted. This was modified after the Windows 95 version was released, and users were then able to save longer file names. Ultimately, the widespread usage of Windows made the file extension a standard method of expressing the function of a file.
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