X64-AN Quad User's Manual Glossary of Terms 115Glossary of TermsADCAnalog-to-Digital conversion is an electronic process in which a continuously variable (analog) signalis changed, without altering its essential content, into digital data.BandwidthDescribes the measure of data transfer capacity. A computer system’s PCI expansion bus is rated for amaximum peak data bandwidth of 132 MB/s. PCI devices must share the maximum PCI busbandwidth when transferring data to and from system memory or other devices.BusA common pathway, or channel, between multiple devices. Besides the computer's internal bus tomemory and system components, peripheral buses such as PCI and AGP, allow adding or changingdevices that make up the computer system.Clamper CircuitA circuit that establishes a fixed level for the video signal at the beginning of each scanning line.CMRRCommon-Mode Rejection Ratio: The ratio of the common-mode noise or interference voltage at theinput of a circuit, to the corresponding noise or interference voltage at the output.Composite VideoA video signal that is composed of the luminance and color information plus the synchronizationsignals together. Common composite video formats are NTSC and PAL.Contiguous MemoryA block of physical memory occupying consecutive addresses.DriverAlso called a device driver, a program routine that links a peripheral device to the operating system.Specific to the Bandit-II, its VGA driver is required for its display adapter functionality and a devicedriver is required for its frame grabber capabilities.FrameOne complete image data set or its equivalent storage space.
