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Chapter 22. Adding New Hardware to Windo... > Secrets of Mastering the Windows 98 ...

Secrets of Mastering the Windows 98 Environment: More About USB Technology

USB uses what is called a tiered, or layered, topology that allows you to attach up to 127 devices to the bus simultaneously. USB currently supports up to five tiers. Each device can be located approximately 16 feet from its hub. There are three standard types of USB components.

The first component is the host, or the system to which all devices are attached (also called the root, the root tier, or the root hub). The host is the system that houses the motherboard or adapter card in the computer through which all USB devices are controlled. The host manages all traffic on the bus and can also function as a hub.


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