Scroll Lock is a lock key on most IBM-compatible computer keyboards. Depending on the operating system, it may be used for different purposes, and applications may assign functions to the key or change their behavior depending on its toggling state. The key is not frequently used, and therefore some reduced or specialized keyboards lack Scroll Lock altogether.
The scroll-lock key with an activated indicator light on an IBM Model M keyboard.
A computer keyboard is a peripheral input device modeled after the typewriter keyboard which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter-style keyboards have been the main input method for computers since the 1970s, supplemented by the computer mouse since the 1980s.
A wired computer keyboard for desktop use manufactured by Lenovo
Keyboards on laptops usually have a shorter travel distance and a reduced set of keys.
Multifunction keyboard with LCD function keys
A Greek keyboard lets the user type in both Greek and the Latin alphabet (MacBook Pro).