It changes the mode of operation of the numeric keypad, between numbers and the navigation keys.
It is the key marked: Num Lock. There should be a light showing on the keyboard when the Num Lock has been pressed and the numeric keypad can be used.
Make sure that Number lock (NumLck) is on.
To turn on the number lock (Num Lock) on a Dell Latitude E5540, locate the "Num Lock" key on the keyboard, which is typically found in the top row of keys or as a secondary function on the "F11" key. Press the "Num Lock" key to activate it. You may see a light indicator on the key or keyboard itself confirming that Num Lock is enabled. If your keyboard has a numeric keypad, the numeric functions will now work.
At a guess, this refers to the 'Numeric Keypad' section of a full-sized PC (AT) keyboard. This is the block of keys to the right of the main 'QWERTY' (on an English keyboard) section which usually have cursor key functionality until the 'Numlock' is turned on. The numeric keypad is intended for speedy data entry by experienced users but also sees considerable use in games, for a variety of functions, typically 'camera control'.
because once you learn to type numbers on the numeric keypad, you can type them much faster, good for people who have to do a lot of calculations on their computers. When the standard QWERTY keyboard was introduced there were "text" type applications and data type. The key pad was added for the speed of entering numeric data in to fields and cells as in the case of spreadsheets. The number keys across the keyboard above the qwerty were to slow for many data punchers so the numeric pad was added
To enable the numeric keypad on an Apple keyboard, ensure that the Num Lock key is activated. On most Apple keyboards, this key is not present, as the numeric keypad functions automatically when used. If you are using an external numeric keypad, it should work without additional configuration. If you are encountering issues, check your system preferences and ensure that keyboard settings are correctly configured.
QWERTY keyboard layouts can vary slightly depending on the language for which it was made. Most QWERTY keyboards have three rows of letters, a row of numbers at the top, a spacebar key at the bottom, two shift keys, two control keys, two alt keys, and enter key, a backspace key, a tab key, and a caps lock key.
It is because the qwerty keyboard is used universally. Most people are used to the qwerty keyboard layout but there are some keyboard layout that you can also consider the devorak and colemak
That will depend on the layout of the keyboard. For a standard keyboard the Home Key is in a block of 6 keys between the main keyboard and the numeric keypad. The 7 key on the numeric keypad also acts as a Home Key when Num Lock is off.
Right next to the question mark key on an American qwerty keyboard
If the Numeric Lock (Num Lock) key is disabled, the numeric keypad will not function for entering numbers. Instead, the keys on the numeric keypad will typically perform their alternate functions, which often include navigation keys like arrows or editing commands. This means that pressing keys on the numeric keypad will result in different actions rather than inputting numeric values. To use the numeric keypad for numbers again, the Num Lock key must be enabled.
There are three patterns I know about, Azerty, Qwerty, and Dvorak, are close together (well, atleast Azerty and Qwerty) Azerty and Qwerty are practically the same. The only difference is that on a Azerty keyboard Azerty are the letters available to type on the top row on the left side, where as for Qwerty , Qwerty is the available to type in on the top right section. In Qwerty A and Z are right next to the caps lock and the (left) shift key. In Azerty Q is next to the bottom left shift key and W is next to the ,/< key. In Dvorak the five vowels are on the left side of the keyboard on the middle row and the five most commonly used consonants are on the left side. The ,/< , ./> and / or ? is on the upper left corner.