Courier is a monospaced slab serif typeface designed to resemble the output from a strike-on typewriter. The typeface was designed by Howard "Bud" Kettler in 1955. The design of the original Courier New typeface was commissioned in the 1950s by IBM for use in typewriters, but they did not secure legal exclusivity to the typeface and it soon became a standard font used throughout the typewriter industry. As a monospaced font, it has recently found renewed use in the electronic world in situations where columns of characters must be consistently aligned. It has also become an industry standard for all screenplays to be written in 12 point Courier or a close variant.