What type of connection is typically used for short-range wireless devices like a keyboard?

The type of connection typically used for short-range wireless devices like a keyboard is Bluetooth. Bluetooth technology is specifically designed for low-power, short-range communication, making it ideal for devices that need to connect wirelessly within a limited distance, such as keyboards, mice, headphones, and other peripherals.

Bluetooth operates easily in environments with multiple devices, utilizing frequency-hopping spread spectrum technology to reduce interference and maintain a stable connection. It typically has a range of about 30 feet (10 meters), sufficient for most personal use cases with wireless keyboards.

While Wi-Fi is also a wireless technology, it is primarily suited for high-speed internet connections over longer distances and is not as power-efficient as Bluetooth for low-bandwidth applications. Infrared requires a direct line of sight and is less common for modern input devices due to its limitations in terms of range and reliability. Zigbee, on the other hand, is designed for low-power, low-data-rate applications and is generally used in home automation and IoT devices rather than computer peripherals like keyboards.