Concurrent PC DOS - English Wikipedia @ Freddythechick

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To a related topic: This is a redirect to an article about a similar topic.
- Redirects from related topics are different than redirects from related words, because a related topic is more likely to warrant a full and detailed description in the target article. If this redirect's subject is notable, then also tag it with {{R with possibilities}} and {{R printworthy}}.

To a section: This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{R to anchor}} instead.

With possibilities: This is a redirect from a title that potentially could be expanded into a new article or other type of associated page such as a new template. The topic described by this title may be more detailed than is currently provided on the target page or in a section of that page.
- When the target page becomes too large, or for any reason a new page would be an improvement, this redirect may be replaced with an article, template or other project page that is carved out of the target page. See also {{R to section}} and use together with this rcat when appropriate.
- If the topic of the redirect is not susceptible to expansion, then use other rcats such as {{R to section}} or {{R to list entry}} when appropriate.
- Since a new page may be created, links to this redirect should not be replaced with a direct link to the target page. To make redirects to this page, use {{R avoided double redirect}}.
- {{R printworthy}} should be used together with this template when applied to a redirect in mainspace.
- When used on a template redirect, it will automatically populate Category:Template redirects with possibilities.

From a trademark: This is a redirect from a trademark to a more common stylisation or to the owner of the trademark.

When appropriate, protection levels are automatically sensed, described and categorized.