A computer keyboard is an input device that allows users to enter text, numbers, and other characters into a computer. The keyboard has a set of keys arranged in a specific layout, including letters, numbers, punctuation marks, function keys, and special keys.
When a key is pressed, a switch located beneath the key sends an electrical signal to the computer, which registers the keystroke and translates it into a corresponding character or action. The character may be displayed on the screen or used as input for a software application.
The keys on a keyboard are arranged in a specific layout, with the QWERTY layout being the most common for English-language keyboards. This layout is named after the first six letters on the keyboard's top row. Other languages and regions may have different keyboard layouts, such as AZERTY or QWERTZ.
In addition to the standard keys, keyboards may also have additional keys for specific functions, such as volume control, media playback, and launching applications. Some keyboards also include a numeric keypad for quick entry of numerical data.
Most modern keyboards connect to the computer via a USB or wireless connection, and some also include features such as backlit keys, customizable keys, and ergonomic designs.
In summary, a computer keyboard works by registering keystrokes and sending electrical signals to the computer, which translates the keystrokes into characters or actions. The keyboard layout determines the arrangement of keys, and additional keys may be included for specific functions.