Keyboard (computing) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-02

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Computer_keyboard


00:01:42 1 History
00:04:01 2 Keyboard types
00:04:53 2.1 Standard
00:06:16 2.2 Laptop-size
00:06:52 2.3 Flexible keyboards
00:07:37 2.4 Handheld
00:08:28 2.5 Thumb-sized
00:09:31 2.6 Multifunctional
00:11:11 3 Non-standard layout and special-use types
00:11:22 3.1 Chorded
00:12:26 3.2 Software
00:13:18 3.3 Projection
00:14:15 3.4 Optical keyboard technology
00:15:12 4 Layout
00:15:20 4.1 Alphabetic
00:19:04 4.2 Key types
00:19:13 4.2.1 Alphanumeric
00:20:47 4.2.2 Modifier keys
00:22:15 4.2.3 Cursor keys
00:23:51 4.2.4 System commands
00:24:25 4.2.4.1 Break key
00:25:22 4.2.4.2 Escape key
00:25:49 4.2.4.2.1 ESC origins
00:26:46 4.2.4.3 Enter key
00:27:18 4.2.4.4 Shift key
00:27:52 4.2.4.5 Menu key
00:28:44 4.2.5 Miscellaneous
00:29:35 4.3 Numeric keys
00:30:01 4.3.1 Multiple layouts
00:30:26 4.3.2 Layout changing software
00:31:21 5 Illumination
00:31:57 6 Technology
00:32:06 6.1 Key switches
00:38:46 6.2 Control processor
00:43:13 6.3 Connection types
00:44:36 7 Alternative text-entering methods
00:46:12 8 Other issues
00:46:21 8.1 Keystroke logging
00:49:24 8.2 Physical injury
00:50:43 8.3 Pathogen transmission
00:51:10 9 See also



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SUMMARY
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In computing, a computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teleprinter-style keyboards became the main input method for computers.
Keyboard keys (buttons) typically have characters engraved or printed on them, and each press of a key typically corresponds to a single written symbol. However, producing some symbols may require pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce letters, numbers or signs (characters), other keys or simultaneous key presses can produce actions or execute computer commands.
In normal usage, the keyboard is used as a text entry interface for typing text and numbers into a word processor, text editor or any other program. In a modern computer, the interpretation of key presses is generally left to the software. A computer keyboard distinguishes each physical key from every other key and reports all key presses to the controlling software. Keyboards are also used for computer gaming — either regular keyboards or keyboards with special gaming features, which can expedite frequently used keystroke combinations.
A keyboard is also used to give commands to the operating system of a computer, such as Windows' Control-Alt-Delete combination. Although on Pre-Windows 95 Microsoft operating systems this forced a re-boot, now it brings up a system security options screen.A command-line interface is a type of user interface navigated entirely using a keyboard, or some other similar device that does the job of one.