Space bar
The space bar is on the bottom center of the keyboard The space bar , spacebar , blank , or space key [1] is a key on a typewriter or alphanumeric keyboard in the form of a horizontal bar in the lowermost row, significantly wider than other keys. Its main purpose is to conveniently enter a space, e.g., between words during typing. A typical space bar key is very large, enough so that a thumb from either hand can use it, and is almost always found on the bottom row of standard keyboard layouts. History Originally (on early writers dating back to the late 19th century) the "bar" was literally a metal bar running across the full width of the keyboard (or even wider, and even surrounding it) that triggered the carriage advance without also firing any of the typebars towards the platen. Later examples gradually shrank and developed into their current more ergonomic form as a wide, centrally located but otherwise apparently normal "key", as typewriter (and ...