Data Acquisition

AOIAppleTalkApplication layerApplication programARPARQASCIIAsynchronousAttenuationAuto-rangingBackground programArea of interest.A proprietary computer networking standardinitiated by Apple Computer for use in connectingthe Macintosh range of computers andperipherals (including LaserWriter printers).This standard operates at 230 kilobits/second.The highest layer of the 7-layer OSI modelstructure, containing all user or applicationprograms.A sequence of instructions written to solve aspecific problem facing organizationalmanagement. These programs are normallywritten in a high-level language and draw onresources of the operating system and thecomputer hardware in executing its tasks.Address resolution protocol. A transmissioncontrol protocol/internet protocol (TCP/IP)process that maps an ID address to an Ethernetaddress; required by TCP/IP for use withEthernet.Automatic request for transmission. A request bythe receiver for the transmitter to retransmit ablock or a frame because of errors detected in theoriginally received message.American Standard Code for InformationInterchange. A universal standard for encodingalphanumeric characters into 7 or 8 binary bits.Drawn up by ANSI to ensure compatibilitybetween different computer systems.Communications in which characters can betransmitted at an arbitrary, unsynchronized time,and where the time intervals between transmittedcharacters may be of varying lengths.Communication is controlled by start and stopbits at the beginning and end of each character.The decrease in signal magnitude or strengthbetween two points.An auto-ranging board can be set to monitor theincoming signal and automatically select anappropriate gain level based on the previousincoming signals.An application program that can be executedwhenever the facilities of the system are notneeded by a higher priority program.