Which bus is generally used to connect slower devices like keyboards and mice to Mac computers?

The correct answer is USB, as it is the standard interface commonly used to connect peripherals such as keyboards and mice to Mac computers. USB (Universal Serial Bus) is specifically designed to support a wide range of devices, including those that operate at lower data transfer speeds. Its versatility and ability to deliver power along with data make it an ideal choice for these types of devices.

USB has undergone various iterations, with newer versions like USB 3.0 and USB-C offering higher speeds and improved capabilities. However, even the older USB standards provide sufficient bandwidth for basic input devices like keyboards and mice, which do not require high data rates. This makes USB the most appropriate and widely used bus for connecting slower, everyday peripherals to Mac systems.

Other options, like FireWire and Thunderbolt, are more suited for high-speed data transfers and connecting devices requiring greater bandwidth, such as external hard drives and high-definition video equipment. Serial connections are largely outdated and not commonly found on modern Mac devices for peripheral connections. Therefore, USB is the most relevant and practical choice for linking slower devices.