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A category can mix articles and images, or a separate file/image category can be created. A file category is typically a subcategory of the general category about the same subject, and a subcategory of the wider category for files, Category:Wikipedia files. To categorize a new file when uploading, simply add the category tag to the upload summary.
While MS-DOS and NT always treat the suffix after the last period in a file's name as its extension, in UNIX-like systems, the final period does not necessarily mean that the text after the last period is the file's extension. [1] Some file formats, such as .txt or .text, may be listed multiple times.
Categories (along with other features like cross-references, lists, and infoboxes) help you to find information, even if you don't know what exists or what it's called. The following list of categories of Wikipedia's coverage parallels our other lists by topic.
A list of all categories can be found at Special:Categories – there are many listed but you can use the search box. Category:Wikipedia categories is the standard top-level category provided by the MediaWiki software, but orphan categories (categories without any parent categories) can exist.
Files can be in the same category as other pages, but are treated separately: on the category page they are not included in the count of articles in the category, and they are displayed in a separate section, with for each a thumbnail and the name, see category page. A file category is typically a subcategory of the general category about the ...
Next a count and list of pages in the category (excluding subcategories and images) is shown. If the category has no members, a message to that effect is displayed. Next a count and list of image and other media files in the category appears, if any exist. These are shown with thumbnails.
The File namespace is a namespace consisting of administration pages in which all of Wikipedia's media content resides. On Wikipedia, all media filenames begin with the prefix File:, including data files for images, video clips, or audio clips, including document length clips; or MIDI files (a small file of computer music instructions).
Multi-directional navigation: A category can contain multiple subcategories, and can also be part of several categories. Categories are organized within Wikipedia into a web of knowledge starting with Category:Wikipedia categories. Exploratory browsing: Categories are beneficial for readers who wish to explore Wikipedia content.