Keyboard

The operating system (like Mac OS, Microsoft Windows, Android and various Linux distributions) is a layer of software that is used as a platform for running the applications, and controls all user interface tools including display and the keyboard.

The first smartphone running Android was released in 2008, the HTC Dream or T-Mobile G1 depending on your country, it had a sliding keyboard.

Grid made the product with a fold-down display that covered the keyboard.

Desktop computers are designed to be placed on a desk, and they're typically made up of a few different parts, including the computer case, monitor, keyboard, and mouse.

Instead of a keyboard and mouse, tablets use a touch sensitive screen for typing and navigation.

Computer hardware is the physical parts or components of a computer, such as the monitor, keyboard, computer data storage, graphics card, sound card and motherboard.