IEI Technology IMBA-8650 User Manual page 219

IMBA-8650 Motherboard
UART Universal Asynchronous Receiver-transmitter (UART) is responsible for
asynchronous communications on the system and manages the system's
serial communication (COM) ports.
UHCI The Universal Host Controller Interface (UHCI) specification is a
register-level interface description for USB 1.1 Host Controllers.
USB The Universal Serial Bus (USB) is an external bus standard for
interfacing devices. USB 1.1 supports 12Mbps data transfer rates and
USB 2.0 supports 480Mbps data transfer rates.
VGA The Video Graphics Array (VGA) is a graphics display system developed
by IBM.
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