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The asterisk (/ ˈ æ s t ər ɪ s k / *), from Late Latin asteriscus, from Ancient Greek ἀστερίσκος, asteriskos, "little star", [1] [2] is a typographical symbol. It is so called because it resembles a conventional image of a heraldic star.
To display Unicode or special characters on web page(s), one or more of the Unicode fonts need to be present or installed in your computer, first. For proper working functionality, setup or configuration or settings from the web page viewing browser software also needs to be modified.
Under Windows, the Alt key is pressed and held down while a decimal character code is entered on the numeric keypad; the Alt key is then released and the character appears. The numerical code corresponds to the character’s code point in the Windows 1252 code page , with a leading zero; for example, an en dash (–) is entered using Alt + 0150 .
The World Wide Web Consortium (W3C) guidelines state that an image's alt attribute should convey meaning, rather than a literal description of the image itself. [2] For example, the alt attribute on an institution's logo should convey that it is the institution's logo instead of describing details of what the logo looks like.
IBM states that AltGr is an abbreviation for alternate graphic. [3] [4]Sun Microsystems keyboard, which labels the key as Alt Graph. A key labelled with some variation of "Alt Graphic" was on many computer keyboards before the Windows international layouts.
The familiar Alt+### combination (where ### is from 0 to 255) retains the old MS-DOS behavior, i.e., generates characters from the legacy code pages now called "OEM code pages." For instance, the combination Alt+ 1 6 3 would result in ú (Latin letter u with acute accent) which is at 163 in the OEM code page of CP437 or CP850. [2]
In Linux-based systems, the euro symbol is typically mapped to Alt+5 instead of Alt+U, the tilde acts as a normal key, and several accented letters from other European languages are accessible through combinations with left Alt. Polish letters are also accessible by using the compose key.
Musical Symbols is a Unicode block containing characters for representing modern musical notation.Fonts that support it include Bravura, Euterpe, FreeSerif, Musica and Symbola.