On a Macintosh, the Alt key is called the Option key. Some computers work the same if the Num Lock key is on. These extended keyboard characters are useful for persons using foreign languages, mathematics, currency symbols, business use, etc. For example, holding down Alt while typing 0225 ( Alt+ 0 2 2 5) on the numeric keypad will result in á, the character at 225 in the (Western Latin) code page 1252. In Microsoft Windows, holding down the Alt key while typing in numbers (often referred to as Alt codes) on the numeric keypad allows the user to type special characters not normally available on the keyboard. When only holding Alt while dragging with the mouse on Linux ( X Window System), the window is moved.Īlt key for special characters Windows.(The Linux "Super" key is the physically the same as the Windows key.) Holding Alt while dragging the mouse over a hyperlink selects it as if it were solid text.(This is also done by ⇧ Shift+ ↵ Enter in other programs.) For example, in a word processor, this creates a line break rather than a paragraph break. Alt+ ↵ Enter allows for a new line when Enter performs another command.Alt+ Tab ↹ switches between the currently opened windows on most windowing systems, often referred to as alt-tabbing.Alt+ ⇧ Shift switches between language layouts.Alt+ F4 closes the current window (or shuts down the computer if the desktop is in the foreground) on most windowing systems.Ctrl+ Alt+ ← Backspace usually causes the X display server to shut down or to restart, see Control-Alt-Backspace.Alt+ ⌘ Cmd+ Esc (often referred to as ⌘ Cmd+ ⌥ Opt+ Esc.) brings up the Force Quit window in Apple's macOS, see Option key.Ctrl+ Alt+ Delete may restart the computer (its original function) in some operating systems it brings up a task manager - see Control-Alt-Delete.The Alt key is well known as part of the key combinations: The Option key's behaviour in macOS differs slightly from that of the Windows Alt key (it is used as a modifier rather than to access pull-down menus, for example). Alt is used in non-Mac software, such as non-macOS Unix and Windows programs, but in macOS it is always referred to as the Option key. As of 2017, the newest Apple keyboards do not contain the Alt label. Since the 1990s Alt has been printed on the Option key ( ⌥ Opt) on most Mac keyboards. However, in modern software, due to the requirement for all bits to be used for post-ASCII 8-bit character sets, Alt no longer works in such a way. In their original function, both Alt and Meta would set the high bit of the signal generated by the key to 1 (for example, A generates 01000001 while Alt+ A generates 11000001). The Alt key has come to replace the Meta key of the old MIT keyboards. The Alt key should not be confused with the Altmode key (sometimes also labelled Alt) on some Teletype and ASCII terminals, which is a synonym for the ASCII escape character. Macintosh keyboards equate the Alt key with the ⌥ Option key, which has its own symbol, similar to that of the ISO standard. This symbol is encoded in Unicode as U+2387 ⎇ ALTERNATIVE KEY SYMBOL. The standardized keyboard symbol for the Alt key, ⎇ (which may be used when the usual Latin lettering "Alt" is not preferred for labeling the key) is given in ISO/IEC 9995-7 as symbol 25, and in ISO 7000 "Graphical symbols for use on equipment" as symbol ISO-7000-2105. With some keyboard mappings (such as US-International), the right Alt key can be reconfigured to function as an AltGr key although not engraved as such. Both placements are in accordance with ISO/IEC 9995-2. The key is located on either side of the space bar, but in non-US PC keyboard layouts, rather than a second Alt key, there is an ' Alt Gr' key to the right of the space bar. The international standard ISO/IEC 9995-2 calls it Alternate key. For example, simply pressing A will type the letter 'a', but holding down the Alt key while pressing A will cause the computer to perform an Alt+ A function, which varies from program to program. Thus, the Alt key is a modifier key, used in a similar fashion to the Shift key. The Alt key Alt (pronounced / ɔː l t/ AWLT or / ʌ l t/ ULT) on a computer keyboard is used to change (alternate) the function of other pressed keys. The Alt key on a Lenovo laptop keyboard ISO keyboard symbol for “Alternate” JSTOR ( January 2008) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |