U-Z - What Does That Motherboard Terminology Mean?
UltraDMA66:
This is an EIDE bus mastering standard that allows a burst transfer rate of up to 66Mbytes/sec.
UltraDMA100:
This is the latest EIDE bus mastering standard that allows burst transfer rates of up to 100Mbytes/sec.
UltraDMA133:
This is the latest EIDE bus mastering standard that allows burst transfer rates of up to 133Mbytes/sec. If you are buying new hard disk drive than buy only those HDD that supports UltraDMA 100 or 133.
Universal Serial Bus (USB):
The USB (Universal Serial Bus) port is a popular I/O interface used for connecting computers and peripherals or other devices. It is capable of supporting up to 127 daisy-chained peripheral devices simultaneously. The latest USB 2.0 specification can deliver 480Mbps data transfer bandwidth. This is the successor to serial and parallel ports. USB offers 12Mbits/sec transfer and the ability to hot swap. The latest version is USB 2.0
Video Graphics Array (VGA) D-Sub:
This is the interface from your video card or integrated video connector and the system display monitor.This 15-pin VGA (Video Graphics Array) output port (aka D-sub) finds widespread usage and is used to connect a computer to CRT monitors and LCD monitors that support analog input. Digital signals must go through RAMDAC conversion before being sent through the D-Sub port as it is capable of only analog input.
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