详情
A keyboard is an input device used to type text, numbers, and commands into computers or other electronic devices. It consists of alphanumeric keys, function keys, modifier keys (like Shift and Ctrl), and often a numeric keypad. Keyboards can be wired (USB or PS/2) or wireless (Bluetooth), with layouts varying by language (e.g., QWERTY, AZERTY). Mechanical keyboards use physical switches for tactile feedback, while membrane keyboards rely on pressure pads. Specialized versions include ergonomic designs for comfort or gaming keyboards with customizable features. Keyboards are essential for data entry, programming, and general navigation, serving as a primary interface between users and digital systems.
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