Ciekawostka: The "pound" key on your keyboard (#) is called an octotroph

Evidence: 51 • authority: 88

10 Inventions on Key Guides and Keyboard Templates. A keyboard has many function keys and each function key can have multiple functions when used with control, shift and alt keys, it is difficult for a user to remember the functionality of the function keys. We need a mechanism to indicate the operations assigned to each function key for different software programs. A keyboard guide or template is used for this purpose. This article illustrates 10 inventions on keyboard key guide and function key templates selected from US patent database. Various mechanisms of keyboard templates have been proposed, including static, dynamic, manual, mechanical, onscreen display and others.

Evidence: 51 • authority: 88

10 Inventions on Keyboard Key Switch Mechanism. The key switches of the keyboard of a computer system are generally comprised of a key cap having a plunger, conductive rubber disposed above a membrane circuit and compressed by the plunger to trigger the membrane circuit causing it to produce an electric signal to the computer. Some key switches use springs. Some other keyboards use rubber domes or a dome sheet, which do the function of springs. When the user depresses the key button the spring or domes collapse. The key switch depresses the key stem, which actuates the button on the membrane circuit. When the user releases the button the springs or rubber domes push the button up to the res…

Evidence: 51 • authority: 88

10 Inventions on Keyboard Key Layout. The standard QWERTY keyboard was developed in the late 1800's for the typewriters. As people were acquainted with that the same layout was retained for the computer keyboards. Many people feel that the QWERTY layout is not very efficient layout and there have been many inventions on different layouts of character keys. In order to improve the key arrangement, two major issues should be addressed. (i) The improved key arrangement should offer significantly improved productivity. (ii) The training time for learning the improved key arrangement should be minimized. This article analyzes 10 inventions from US patent database each of which have proposed a ne…

Evidence: 51 • authority: 72

The symbol # is known as the number sign, hash, and the pound sign and has a variety of other names. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔. Since 2007, widespread usage of the symbol to introduce metadata tags on social media platforms has led to such tags being known as 'hashtags', and from that, the symbol itself is sometimes called a hashtag. The symbol is distinguished from similar symbols by its combination of level horizontal strokes and right-tilting vertical strokes.

Evidence: — • authority: 35