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The Alt key Alt (pronounced / ɔːlt / AWLT or / ʌlt / ULT) on a computer keyboard is used to change (alternate) the function of other pressed keys. Thus, the Alt key is a modifier key, used in a similar fashion to the Shift key. For example, simply pressing A will type the letter 'a', but holding down the Alt key while pressing A will cause ...
In computer security, shoulder surfing is a type of social engineering technique used to obtain information such as personal identification numbers (PINs), passwords and other confidential data by looking over the victim's shoulder. Unauthorized users watch the keystrokes inputted on a device or listen to sensitive information being spoken ...
Polar code (coding theory) In information theory, a polar code is a linear block error-correcting code. The code construction is based on a multiple recursive concatenation of a short kernel code which transforms the physical channel into virtual outer channels. When the number of recursions becomes large, the virtual channels tend to either ...
It covers all the basics, and each tutorial takes only a few minutes, so you can become a proficient Wikipedian in no time! The wiki markup source editor shows the underlying page source code. It works like a plain text file, indicating links and other items using simple code like this: [ [Earth]]. VisualEditor is the easier way of editing that ...
Templates are pages that are embedded (transcluded) into other pages to allow for the repetition of information. Wikipedia:List of infoboxes for infoboxes, which are small panels that summarize key features of the page's subject. Wikipedia:Requested templates, to request creation of a template. Use this form to search in the Template: or ...
Help for accessing IRC itself is best requested on the talk page, if you have read the tutorial and other information and are still unable to use it. Once you can access IRC by some means, there are help and information channels on most Wikimedia-related topics listed above, type /join #channelname into any window, to join them and ask your ...
Speedrun of a SuperTux level. Speedrunning is the act of playing a video game, or section of a video game, with the goal of completing it as fast as possible.Speedrunning often involves following planned routes, which may incorporate sequence breaking and can exploit glitches that allow sections to be skipped or completed more quickly than intended.
An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port. An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request.