**A keyboard is a peripheral input device used to enter text into a computer.** It typically has a set of keys arranged in a specific layout, such as QWERTY, and is used to type letters, numbers, and symbols.
Here are some key points about keyboards:
* **Input device:** Keyboards are primarily used to input data into a computer.
* **Keys:** They have various keys for letters, numbers, symbols, and special functions.
* **Layouts:** The most common layout is QWERTY, but there are others like Dvorak.
* **Types:** There are different types of keyboards, including mechanical, membrane, and scissor-switch.