A keyboard is an input device that contains keys users press to enter data and instructions into a computer. Christopher Latham Sholes invented the modern keyboard design in 1868 with his patent of the typewriter. There are several types of keyboards including standard, laptop, gaming, ergonomic, laser/infrared, and rollup keyboards. Keyboards can connect via wired connections like USB or wireless connections like Bluetooth. Keyboards contain letter keys, number keys, function keys, navigation keys, and special keys like shift, tab, escape and control keys.