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 in 1868 by patenting the typewriter. There are several types of keyboards including standard, laptop, gaming, ergonomic, laser/infrared, and rollup keyboards. Keyboards can connect through wired connections like USB or wireless connections such as Bluetooth, infrared, or radio frequency. Computer keyboards contain keys like function keys, numeric keypads, navigation keys, typewriter keys, special keys, and an escape key that perform various operations.