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Wikipedia

Num Lock

Num Lock or Numeric Lock () is a key on the numeric keypad of most computer keyboards. It is a lock key, like Caps Lock and Scroll Lock. Its state affects the function of the numeric keypad commonly located to the right of the main keyboard and is commonly displayed by an LED built into the keyboard.

A keyboard with Num Lock turned on as indicated by a LED

The Num Lock key exists because earlier 84-key IBM PC keyboards did not have cursor control or arrows separate from the numeric keypad. Most earlier computer keyboards had different number keys and cursor control keys; however, to reduce cost, IBM chose to combine the two in their early PC keyboards. Num Lock would be used to select between the two functions. On some laptop computers, the Num Lock key is used to convert part of the main keyboard to act as a (slightly skewed) numeric keypad rather than letters. On some laptop computers, the Num Lock key is absent and replaced by the use of a key combination.[1]

Since Apple Keyboards never had a combination of arrow keys and numeric keypad (but some lacked arrow keys, function keys, and a numeric keypad altogether), Apple has keyboards with a separate numeric keypad but no functional Num Lock key. Keyboards manufactured by Apple will instead use a Clear key but not all Apple manufactured keyboards will be provided with it.[2]

Numeric keypad
Keys affected by Num Lock
Key on
Numeric Keypad
Num Lock On Num Lock Off
1 1 End
2 2 Down Arrow
3 3 Page Down
4 4 Left Arrow
5 5 does nothing (usually)[3]
6 6 Right Arrow
7 7 Home
8 8 Up Arrow
9 9 Page Up
0 0 (zero or comma) Insert
. . (dot) or, (comma) Delete
Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScn/
SysRq
Scroll
Lock
Pause/
Break
TildeExclamation markAt signNumber signDollar signPercent signCaretAmpersandAsteriskParenthesisParenthesisUnderscorePlus signBackspaceBacktick1 (number)2 (number)3 (number)4 (number)5 (number)6 (number)7 (number)8 (number)9 (number)0Hyphen-minusEquals signBackspaceTab keyQWERTYUIOPCurly bracketCurly bracketVertical barTab keyQWERTYUIOPSquare bracketSquare bracketBackslashCaps lockASDFGHJKLColon (punctuation)Quotation markEnter keyCaps lockASDFGHJKLSemicolonApostropheEnter keyShift keyZXCVBNMBracketBracketQuestion markShift keyShift keyZXCVBNMComma (punctuation)Full stopSlash (punctuation)Shift keyControl keyWindows keyAlt keySpace barAlt keyWindows keyMenu keyControl key
Insert Home PgUp Num
Lock
Delete End PgDn 7 8 9 +
4 5 6
1 2 3 Enter
   0
   Ins
 . 
Del

References edit

  1. ^ "Press Fn+F8, F7, or Insert to enable/disable numlock". Lenovo Support. Retrieved 2023-09-18.
  2. ^ "Use your Apple Keyboard in Windows with Boot Camp". Apple Support. Retrieved 2022-01-16.
  3. ^ "keyboard - Has the '5' key on the numeric keypad ever had an alternate function in hardware?". Super User. Retrieved 2022-01-16.


lock, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations. This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Num Lock news newspapers books scholar JSTOR May 2021 Learn how and when to remove this template message This article possibly contains original research Please improve it by verifying the claims made and adding inline citations Statements consisting only of original research should be removed October 2018 Learn how and when to remove this template message Learn how and when to remove this template message Num Lock or Numeric Lock is a key on the numeric keypad of most computer keyboards It is a lock key like Caps Lock and Scroll Lock Its state affects the function of the numeric keypad commonly located to the right of the main keyboard and is commonly displayed by an LED built into the keyboard A keyboard with Num Lock turned on as indicated by a LEDThe Num Lock key exists because earlier 84 key IBM PC keyboards did not have cursor control or arrows separate from the numeric keypad Most earlier computer keyboards had different number keys and cursor control keys however to reduce cost IBM chose to combine the two in their early PC keyboards Num Lock would be used to select between the two functions On some laptop computers the Num Lock key is used to convert part of the main keyboard to act as a slightly skewed numeric keypad rather than letters On some laptop computers the Num Lock key is absent and replaced by the use of a key combination 1 Since Apple Keyboards never had a combination of arrow keys and numeric keypad but some lacked arrow keys function keys and a numeric keypad altogether Apple has keyboards with a separate numeric keypad but no functional Num Lock key Keyboards manufactured by Apple will instead use a Clear key but not all Apple manufactured keyboards will be provided with it 2 Numeric keypadKeys affected by Num Lock Key on Numeric Keypad Num Lock On Num Lock Off1 1 End2 2 Down Arrow3 3 Page Down4 4 Left Arrow5 5 does nothing usually 3 6 6 Right Arrow7 7 Home8 8 Up Arrow9 9 Page Up0 0 zero or comma Insert dot or comma DeleteIBM PC keyboard Windows ANSI US layout vteEsc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScn SysRq ScrollLock Pause BreakInsert Home PgUp NumLock Delete End PgDn 7 8 9 4 5 6 1 2 3 Enter 0 Ins DelReferences edit Press Fn F8 F7 or Insert to enable disable numlock Lenovo Support Retrieved 2023 09 18 Use your Apple Keyboard in Windows with Boot Camp Apple Support Retrieved 2022 01 16 keyboard Has the 5 key on the numeric keypad ever had an alternate function in hardware Super User Retrieved 2022 01 16 nbsp This computer hardware article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Num Lock amp oldid 1176055373, wikipedia, wiki, book, books, library,

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