1. Computer keyboard
Computer keyboard In what order are the letters on the computer keyboard arranged?
Many people are confused about the order of letters on the computer keyboard. B is not next to A, but P and Q, which should be connected, are on their own side, facing each other far away. What is the reason? In fact, the original design concept of this keyboard is to make you unhappy when typing! The keyboard currently commonly used by the public is called "QWERTY". The original text is "QWERTY". Has anyone noticed that this word looks a little familiar and a little strange? In fact, it is the combination of the first row of letters on the keyboard. Please look at the following three rows. Letters: Q W E R T Y U I O P A S D F G H J K L Z ? It is both difficult to memorize and master. The original keyboard was basically arranged in alphabetical order. However, in order to prevent the typist from typing too fast and causing the mechanical rods supporting the keyboard to collide with each other and cause malfunction, the positions of some letters were adjusted to form today's It looks like this. It is said that the reason is as follows: In the 1870s, Sholes Co. was the largest manufacturer specializing in the production of typewriters. Due to the imperfect mechanical technology at that time, the keys bounced back after being hit. The speed of typing is relatively slow. Once the typist types too fast, it is easy for the two keys to be twisted together. They must be separated by hand carefully, thus seriously affecting the typing speed. For this reason, the company often receives Customer complaints. In order to solve this problem, designers and engineers worked hard because there was really no way to increase the rebound speed of the keys. Later, a smart engineer suggested: On the one hand, the reason for the twisted keys of the typewriter is, of course The reason is that the rebound speed of the keys is slow, and on the other hand, the typist's keystroke speed is too fast. Since we can't increase the rebound speed of the keys, why not try to reduce the typist's keystroke speed? This is undoubtedly a new idea. There are many ways to reduce the typist's typing speed. The simplest way is to disrupt the order of the 26 letters and place the more commonly used letters under clumsy fingers. For example, the letters " O" is the third most frequently used letter in English, but it is placed under the ring finger of the right hand; the letters "S" and "A" are also highly used letters, but they are given to the most clumsy The ring finger and little finger of the left hand are used for typing. For the same reason, the less frequently used letters such as "V", "J" and "U" are played by the most flexible index finger. As a result, this "QWERTY" keyboard combination is was born and gradually took shape. Later, due to the development of materials and technology, the rebound speed of the keys was much greater than the typist's keystroke speed, but the keyboard alphabetical order could not be changed. This arrangement did bring benefits to beginners There are many input problems. In fact, someone noticed this problem as early as 1936 and introduced a more ergonomic keyboard. Unfortunately, during World War II, this keyboard died before it was launched. Recently, some groups have been actively promoting it. This keyboard named "Dvorzak" may have a new letter arrangement that will be widely used in the near future.
What are the classifications of computer keyboards?
QWERTY keyboard
The keyboard was standardized into the current "QWERTY" keyboard key layout because at first the typewriter keyboard was completely arranged in alphabetical order, and the typewriter was a The typing machine has a mechanical structure, so if you type too fast, certain key combinations are very prone to key jamming. It was Christopher Latham Sholes who solved this problem. He invented the layout of the QWERTY keyboard. He placed the most commonly used letters in opposite directions to slow down typing as much as possible. The keystroke speed can be adjusted to avoid key jamming. Christopher Larson Shores patented this design in 1868, and the first commercial typewriter with this layout was successfully put on the market in 1873.
However, in actual use, people found that the layout of QWERTY keyboard keys was very inefficient.
For example: Generally, people are right-handed, but using QWERTY-enabled keyboards puts 57% of the workload on the left hand. The two little fingers and the left ring finger are weak fingers, but they have to be used frequently. The letter row, which accounts for only about 30% of the entire typing work, is placed in the middle column of the keyboard. Therefore, in order to type a word, people often need to move their fingers up and down.
In 1888, a public typing competition was held across the United States. A court stenographer named Magalin performed blind typing according to a clear division of fingering. The speed was very fast, and the error was only 30% of 10,000. Everyone present was surprised. According to records, the bonus Magalin received at that time was US$500. Since then, many people have begun to imitate this typing method. Touch typing technology has become popular in the field of professional typing, and schools specializing in training typists have also begun to appear in the United States.
In addition to the need to separate the more commonly used keys when inputting in English, non-English keyboards also need to do this for typewriters in other languages, and the commonly used keys are different for each language, such as French:
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[1] So there are AZERTY keyboards (for French users) and QWERTZ keyboards (for German users).
DVORAK keyboard Main article: Dvorak keyboard Due to the widespread use of the above-mentioned touch typing technology, the typing speed of typewriters can basically meet the needs of daily work. However, a Washingtonian named Dvorak invented a new keyboard arrangement in 1934. The keyboard of this design allows the left and right hands to alternately type on the keyboard, which can shorten the training period by half and increase the average typing speed by about 1/3. The principles of DVORAK keyboard layout are: 1. Try to let the left and right hands alternately hit the keyboard to avoid single-handed combos; 2. Minimize the average moving distance of keystrokes across rows; 3. Arrange the most commonly used letters next to the guide keys. position.
Windows has built-in support for the "DVORAK" keyboard. Click "Control Panel - Keyboard", enter the "Input Method Regional Settings" option, then click the "Add" button and add the "Input Method Region" Set "Settings" to "English (United States)", and find "US English-DVORAK" in the "Keyboard Layout/Input Method" column. After confirmation, it will become the "DVORAK" keyboard.
MALT keyboard Later, Lillian Malt designed the "MALT" keyboard, which was more reasonable and efficient than the "DVORAK" keyboard. Molt changed the original staggered row of keys, making the "Backspace" key and other keys that were originally far away from the center of the keyboard easier to reach, and using the thumb more frequently when typing. But the "MALT" keyboard has not been widely used.
Numeric keyboard The numeric keyboard is also called the Jiugong keyboard. It is convenient for accountants to use and does not require additional installation of programs.
Wireless transmission keyboard wireless transmission Infrared transmission, a wireless keyboard using infrared technology.
Bluetooth transmission, wireless keyboard using Bluetooth technology. Wireless computer keyboards are becoming increasingly popular these days due to their ease of use. However, wireless keyboards require batteries to work, and they also pose security risks as wireless transmissions can easily be eavesdropped. [2] In addition, wireless keyboards are not popular among gamers, mainly because their accuracy and gaming functions are not as good as those of wired keyboards.
Apple Standard Keyboard The keyboard used by Apple computers is slightly different from that of ordinary PCs. For example, early keyboards had an "Apple key" with a logo on it, similar to the Microsoft logo key in PC keyboards.
Later, the Apple key was replaced by the "mand?" key
The functions of all the keys on the computer keyboard need to be illustrated.
The functions of each key on the most comprehensive computer keyboard in history! F1 Help F2 Change name F3 Search F4 Address F5 Refresh F6 Switch F10 Menu CTRL+A Select all CTRL+C Copy CTRL+X Cut CTRL+V Paste CTRL+Z Undo CTRL+O Open SHIFT+DELETE Permanently delete DELETE Delete ALT+ENTER Properties ALT+F4 Close CTRL+F4 Close ALT+TAB Switch ALT+ESC Switch ALT+Spacebar Window menu CTRL+ESC Start menu Press CTRL when dragging an item Copy the selected item Press CTRL+SHIFT when dragging an item Create Shortcut Press SHIFT when inserting a disc into a CD-ROM drive to prevent the disc from automatically playing Ctrl+1,2,3.
Switch to 1, 2, and 3 from the left. tags Ctrl+A to select all the contents of the current page Ctrl+C to copy the currently selected contents Ctrl+D to open the "Add Favorites" panel (add the current page to favorites) Ctrl+E to open or close the "Search" sidebar ( Various search engines are optional) Ctrl+F opens the "Find" panel Ctrl+G opens or closes the "Simple Collection" panel Ctrl+H opens the "History" sidebar Ctrl+I opens the "Favorites" sidebar/other : Restore all vertically tiled or horizontally tiled or cascaded windows Ctrl+K Close all tabs except the current and locked tabs Ctrl+L Open the "Open" panel (Iter addresses or other files can be opened on the current page.)
Ctrl+N creates a new blank window (can be changed, Maxthon Options → Label → New) Ctrl+O opens the "Open" panel (iter address or other files can be opened on the current page.) Ctrl+P Open the "Print" panel (you can print web pages, pictures, etc.
)
Ctrl+Q opens the "Add to filter list" panel (sends the current page address to the filter list) Ctrl+R refreshes the current page Ctrl+S opens the "Save web page" panel (can add all the current page Content is saved) Ctrl+T tiles all windows vertically Ctrl+V pastes the contents of the current clipboard Ctrl+W closes the current tab (window) Ctrl+X cuts the currently selected content (generally only used for text operations) Ctrl+Y Redo the previous action (generally only used for text operations) Ctrl+Z Undo the previous action (generally only used for text operations) Ctrl+F4 Close the current tab (window) Ctrl+F5 Refresh the current page Ctrl+F6 Press the opening time of the page Switch tabs forward in sequence (window) Ctrl+F11 hide or show the menu bar Ctrl+Tab switch tabs downward in a small menu (window) Ctrl+Enter domain name automatically completes XXX (content can be changed, Maxthon Options → Address Bar → General) /Another: When the input focus is in the search bar, Ctrl+drag the highlighted keyword to save the address of the link or the selected text or the specified picture to a folder (the saving directory can be changed, Maxthon Options → Save) Ctrl+ Keyboard '+' Enlarge the current page by 20% Ctrl+ Keyboard '-' Reduce the current page by 20% Ctrl+ Keyboard '*' Restore the zoom of the current page to its original size Ctrl+Alt+S Automatically save all contents of the current page to the specified folder (The save path can be changed, Maxthon option → Save) Ctrl+Shift+numpad'+'Enlarge all pages by 20% Ctrl+Shift+numpad'-'Reduce all pages by 20% Ctrl+Shift+F Move the input focus to the search bar Ctrl+ Shift+G Close the "Simple Collection" panel Ctrl+Shift+H Open and activate it to the homepage you set Ctrl+Shift+N Open the address in the clipboard in a new window. If there is text in the clipboard, call the search engine search This text (search engine can be selected, Maxthon options → Search) Ctrl+Shift+S opens the "Save Web Page" panel (you can save all the content of the current page, equivalent to Ctrl+S) Ctrl+Shift+W closes except for lock tags All tabs (windows) Ctrl+Shift+F6 Switch tabs backward (window) in the order of time when the page is opened Ctrl+Shift+Tab Switch tabs up (window) in a small menu mode Ctrl+Shift+Enter Domain name auto-complete Alt+ 1 Save the current form Alt+2 Save as a general form Alt+A Expand the favorites list ____________________________________________ Explorer END displays the bottom of the current window HOME displays the top of the current window NUMLOCK + the minus sign (-) on the numeric keyboard collapses the selected file Folder NUMLOCK + the plus sign (+) on the numeric keyboard displays the contents of the selected folder NUMLOCK + the asterisk (*) on the numeric keyboard displays all subfolders of the selected folder Left key Collapses the currently selected item when it is in the expanded state. Or select its parent folder, right-click to expand the currently selected item when it is in a collapsed state, or select the first sub-folder ____________________________________________ Natural keyboard window to show or hide the "Start" menu window + F1 Help window + D to display the desktop Window+R opens "Run" Window+E opens "My Computer" Window+F searches for files or folders Window+U opens "Tool Manager" Window+BREAK displays "System Properties" Window+TAB between open items Switch ______________________________________ Accessibility function Press the SHIFT key on the right for eight seconds to toggle the filter key on and off. Press SHIFT five times to toggle the sticky key on and off. Press NUMLOCK for five seconds to toggle the switching key on and off. ALT on the left + SHIFT on the left +NUMLOCK toggles the mouse button on and off ALT+ on the left
SHIFT+PRINTSCREEN on the left switches high contrast on and off.
What do all the keys on a computer keyboard mean? (Computer terminology)
Description of common keys on the computer keyboard: F1 displays the help content of the current program or windows.
F2 When you select a file, it means "rename" F3 When you are on the desktop, it opens the "Find: All Files" dialog box F10 or ALT activates the menu bar of the current program windows key or CTRL+ESC to open the start menu CTRL+ALT+DELETE to open the close program dialog box in win9x C D c pt,`t%YT%v DELETE to delete the selected item, if it is a file, it will be put into the Recycle Bin. B6e^"MX q-K J SHIFT+DELETE Delete the selected item. If it is a file, it will be deleted directly instead of being put into the recycle bin pIC~-k CTRL+N Create a new file 3[ @W k {|F CTRL+O Open the "Open File" dialog box CTRL+P Open the "Print" dialog box CTRL+S Save the currently working file CTRL+X Cut the selected item to the clipboard CTRL+INSERT or CTRL+C Copy the selected item to the clipboard SHIFT+INSERT or CTRL+V Paste the contents of the clipboard to the current location ALT+BACKSPACE or CTRL+Z Undo the previous step ALT+SHIFT+BACKSPACE Redo the previous step Undo the operation Windows key + M to minimize all open windows Windows key + CTRL + M to restore the size and position of the previous operation Windows key + E to open the resource manager. Windows key + F Open the "Find: All Files" dialog box Windows key + R Open the "Run" dialog box Windows key + BREAK Open the "System Properties" dialog box Windows key + CTRL + F Open the "Find: Computer" dialog box SHIFT+ F10 or right-click the mouse to open the shortcut menu of the currently active project. Press and hold SHIFT when inserting the CD to skip automatic CD playback.
Press and hold when opening word to skip the self-starting macro ALT+F4 Close the current application ALT+SPACEBAR Open the menu in the upper left corner of the program ALT+TAB Switch the current program ALT+ESC Switch the current program|O%_. Copy the active program window to the clipboard as an image CTRL+F4 Close the current text in the current application (such as CTRL+F6 in word to switch to the next text in the current application (add shift to jump to the previous window) in In IE: ALT+RIGHT ARROW displays the previous page (forward key) ALT+LEFT ARROW displays the next page (back key) CTRL+TAB switches between frames on the page (add shift to reverse! w'UQ }!k %z.i JP F5 Refresh CTRL+F5 Force refresh purpose shortcut key to activate the menu bar in the program F10 Execute the corresponding command on the menu ALT+underlined letter on the menu Close the current window in the multi-document interface program CTRL+ F4 Copy CTRL+ C /Dxc h5Pi ]D5N Cut CTRL+ ALT+hyphen (-) Paste CTR L+ V "dM.?'Ll Y Switch to the last used window or hold down ALT and press TAB repeatedly Undo CTRL+ Z 2. Use the shortcut keys of "Windows Explorer" I h#d-Uj`7i$h If the current selection is expanded, you want to collapse it or select the parent folder. Left arrow collapses the selected folder NUM LOCK+minus sign (-) If the current selection is collapsed, you want to expand it or select the first folder. Subfolder right arrow to expand all folders under the current selection NUM LOCK+* Expand the selected folder NUM LOCK+ plus sign (+) QO j2L7oyt lP Switch between the left and right panes F6 3. Use the WINDOWS key to use the Microsoft natural keyboard Or the following shortcut keys for any other compatible keyboard that contains the Windows logo key.
Purpose shortcut keys cycle through the buttons on the taskbar WINDOWS+ TAB displays "Find: All Files" WINDOWS+ F displays "Find: Computer" CTRL+ WINDOWS+ F displays "Help" WINDOWS+ F1 displays the "Run" command WINDOWS+ R displays the "Start" menu WINDOWS Display the "System Properties" dialog box WINDOWS+ BREAK Display "Windows Explorer" WINDOWS+ E Minimize or restore all windows WINDOWS+ D Undo minimize all windows SHIFT+ WINDOWS+ M 4. Use "My Computer" and "Windows Explorer" Shortcut key purpose Shortcut key Close the selected folder and all parent folders Hold down the SHIFT key and click the Close button (only for "My Computer"): {u6ul w/J` Move backward to the previous view ALT+left arrow'{w"{3tp a/i [Ik6` Move forward to the previous view ALT+right arrow to view the upper-level folder BACKSPACE @v3{!| _5Pl 5. Use the shortcut keys in the dialog box Purpose shortcut keys Cancel the current task ESC If the current control is a button, click the button or if the current control is an option button, click the option Spacebar Click the corresponding command ALT + underlined letter Click the selected button ENTER on the option Move backward SHIFT+ TAB Move backward on a tab CTRL+ SHIFT+ TAB Move forward on an option TAB Move forward on a tab CTRL+ TAB If a folder is selected in the Save As or Open dialog box 9}w r $r e To open the upper-level folder BACKSPACE Open "Save to" or "View" in the "Save as" or "Open" dialog box F4 Refresh "Save as" or "Open" Dialog Box F5F ycA/n$} 6. Use the "Desktop", "My Computer" and "Windows Explorer" shortcut keys #f[;gB6m g When selecting an item, you can use the following shortcut keys.
Purpose shortcut key: No need to "auto play" when inserting a CD. Function: Hold down SHIFT to insert CD-ROM. Copy files. Hold down CTRL and drag files. Create shortcuts. Press and hold CTRL+SHIFT to drag files.
The functions of each key on the computer keyboard
1. The keyboard is divided into four areas: function key area, main keyboard area, status indication area, and control key area.
2. The keyboard is divided into four types of instructions: numbers, symbols, letters, and functions.
3. The single letter keys on the keyboard are used for typing.
4. The two keys shift and ctrl are the two keys in the red circle that adjust the pinyin key style at the same time. When you press it at the same time it will appear: Pinyin, Alphabet, Five-Character Pen. After selecting one of them, just release the button.
5. The caps lock button adjusts the size of letters, and also means locking the size of letters.
6. The number area is the number you need to use when chatting with others or processing files and other things.
7. The control area controls the movement of web pages. For example, some games require the use of the control area, and watching videos also requires the use of the control area. Controlling every direction in the area is controlling every position.
8. Symbols that need to be used when chatting or processing files.
9. The numbers in the red circle can switch different mode functions.
10. The Esc button can control the size of the video screen. You can press the Esc key to switch screen sizes while watching a movie.
The above is an introduction to the functions of each key on the computer keyboard. I hope it can be helpful to you!
Comprehensive list of computer keyboard key functions
Computer keyboard functions include English keys, numeric keys, commonly used function keys and cursor movement keys. Computer keyboard function keys include the Enter key, Caps Lock key, Esc key, etc.
The functions of the Enter key in computer keyboard functions are: 1. When entering text, pressing the Enter key represents a line break, dividing the text into two paragraphs; 2. When performing other operations, the Enter key represents input The end of the command causes the computer to execute the entered command.
The functions of the Shift key in the computer keyboard function are: 1. As long as we hold down the Shift key and press other keys, we can enter the symbols above the key, for example, to enter "@" Hold down the Shift key and the key with "@"; 2. Shift can also be used to exchange uppercase and lowercase letters. When the current capital letter is an uppercase letter, the Caps Lock light will be on. Hold down the Shift and Caps Lock input. Lowercase letters.
The Esc key in the computer keyboard function is used to interrupt and cancel operations. After clicking a menu or option and no longer want to perform the operation, you can press the Esc key to cancel. In DOS, it can also be used to exit a certain software.
The function of the computer's cursor keys is to move the cursor up, down, left, and right on the computer. There are many shortcut keys on the computer. For example, "Ctrl+C" can copy text, "Ctrl+V" can paste text, "Ctrl+W" can close the program, and "Ctrl+Shift" can Input method switching, etc.
What do the keyboards on the computer mean?
F1 to f12 are the function key areas, which are generally useless, and esc is the escape key (generally used for games) ~ (the tilde key is punctuation Symbol wavy) You can use the tab key to switch back to the desktop in the game. How could I forget that it is used to create borderless tables in table creation and is usually useless.
The caps lock key is a case switching key, and the shift key is used by the resource manager to manage my documents and files in my computer. Generally, it is not used in conjunction with the ctrl key to switch input. French
The letter key in the middle is the 26 English letter keys, which are used for typing in the main key area. The atl key is used to close the current menu. It can be used in conjunction with the f4 key to switch to the interface of shutting down the computer. The one next to atl The space between the big keys, the key between atl and ctrl is the menu key used to switch out the start menu. The keys to the right of the space are atl and menu keys. Some are not menu keys and some are fn keys. The purpose of the Ctrl key is the same as the one to the left of the space. Up It is the shift key, the enter key, the forward delete key, the Backspace 0 to 9 numeric key, the punctuation mark key, the function editing keypad, the small keypad, the 0 to 9 numeric small keypad, the small keypad layout is 0123456789, which is the numeric key enter, the enter key, - minus key + plus key / division key * multiplication sign key del is the decimal point key function to edit the keypad layout, Print Screen SysRq pasteboard shortcut key Press this key to copy all the contents of the current screen to the pasteboard, Scroll Lock key: As the name suggests, press the screen lock key to lock the screen and press it again to unlock it. Pause Break key: Press Ctrl+Pause Break key at the same time to forcibly terminate the running of the program. Insert key: Insert key. This key is used for insert and replace conversions. In the insert state, after a character is entered, all characters to the right of the cursor move one character to the right. Press the Insert key again to return to replacement mode. Home key: Start key. Press this key to move the cursor to the beginning of the current line. Press Ctrl+Home keys, move the cursor to the beginning of the first line, End key: terminate key. Press this key to move the cursor to the end of the current line. Press Ctrl+End keys, move the cursor to the end of the last line, Page Up key: page forward key. Press this key to turn to the previous page. Page Down key: page backward key. Press this key to turn to the next page. Delete key: The delete key is also the backward delete key.
Each time this key is pressed, a character behind the cursor is deleted, and all characters to the right of the cursor move one character to the left. Pressing this key together with the atl and Ctrl keys at the same time will start the task manager, and some may restart it. Press atl, Ctrl and the decimal point (del key) at the same time to start the task manager. ↑, ←, ↓, → keys: cursor movement keys, which control the cursor to move in 4 different directions.
What are the names of the keys on the computer keyboard, what are their Chinese names, and what are their functions?
1. alt: shift gears.
2. tab: Tabulation.
3. esc:escape to exit.
4. ctrl: full name control, control.
5. shift: upper gear.
6. back space: back space.
7. The full name of PrScrm is print screen.
8. SysRq Systerm Request system request.
9. insert: Insert.
10. home: start.
11. Delete: Delete.
12. end: end.
13. pgup: page up the previous page,
14. pgdn: page down the next page.
15. pause break: pause and interrupt.
16. caps lock: The full name is capitalizations lock.
17. scroll lock: scroll lock.
18. num lock: number lock digital lock.
19. windows: window key.