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The Scroll Lock key is meant to lock all scrolling techniques and is a vestige of the original IBM PC keyboard. In its original design, Scroll Lock was intended to modify the behavior of the arrow keys. When the Scroll Lock mode is on, the arrow keys scroll the contents of a text window instead of moving the cursor.
The arrow keys and the scroll wheel can also be used to scroll a document, although usually by smaller incremental distances. Used together with a modifier key , such as Alt , ⌥ Opt , ^Ctrl or a combination thereof, they may act the same as the Page keys.
Arrow keys were included in later Apple keyboards. Early models with arrow keys but no middle section (Home, End, etc.) placed them in one line below the right-hand Shift key in an HJKL-like fashion; later versions had a standard inverted-T layout, either in the middle block or as half-height keys at the bottom right of the main keyboard.
Also while Caps Lock is engaged, typically the shift key instead adjusts the now-capital letter keys to type in lowercase. Scrolling Lock – Scroll Lock. In some applications, such as spreadsheets, the lock mode is used to change the behavior of the cursor keys to scroll the document instead of the cursor.
The top left corner has a key called NumLock, or number lock. To use alt key codes for keyboard shortcut symbols you’ll need to have this enabled. If you’re using a laptop, your number pad is ...
Scroll Lock was also used to lock the cursor on its line and scroll the work area under it. In spreadsheets such as Microsoft Excel , it locks the cell pointer on the current cell, allowing the user to use the arrow keys to move the view window without moving the cell pointer.
All other scrolling must be manually controlled by the user by use of scroll bars, mouse wheel, or Page Up/Page Down keys. Another alternate form of control is used in some spreadsheets when the Scroll Lock key is activated. In this case the caret is locked to the centre of the screen and the cursor keys instead move the worksheet itself ...
Mac: The classic Mac OS supported system extensions known generally as FKEYS which could be installed in the System file and could be accessed with a Command-Shift-(number) keystroke combination (Command-Shift-3 was the screen capture function included with the system, and was installed as an FKEY); however, early Macintosh keyboards did not support numbered function keys in the normal sense.