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Data Acquisition

Data Acquisition

Data Acquisition

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Back-planeBand pass filterBandwidthBarcode symbolBase addressBaudBaudotBell 212BERT/BLERTBinary coded decimal(BCD)BIOSA panel containing sockets into which circuitboards (such as I/O cards, memory boards andpower supplies) can be plugged.A filter that allows only a fixed range offrequencies to pass through. All other frequenciesoutside this range (or band) are sharply reducedin magnitude.The range of frequencies available, expressed asthe difference between the highest and lowestfrequencies, in hertz (cycles per second,abbreviated Hz).An array of rectangular parallel bars and spacesof various widths designed for the labeling ofobjects with unique identifications. A bar codesymbol contains a leading quiet zone, a startcharacter, one or more data characters including,in some cases, a check character, a stop character,and a trailing quiet zone.A memory address that serves as the referencepoint. All other points are located by offsetting inrelation to the base address.Unit of signaling speed derived from the numberof events per second (normally bits per second).However, if each event has more than one bitassociated with it, the baud rate and bits persecond are not equal.<strong>Data</strong> transmission code in which five bitsrepresent one character. Sixty-four alphanumericcharacters can be represented. This code is usedin many teleprinter systems with one start bit and1.42 stop bits added.An AT&T specification of full duplex,asynchronous or synchronous 1200 bps datatransmissions for use on the public telephonenetwork.Bit error rate/block error rate testing. An errorchecking technique that compares a received datapattern with a known transmitted data pattern todetermine transmission line quality.A code used for representing decimal digits in abinary code.The basic input/output system for the computer,usually firmware-based. This program handlesthe interface with the PC hardware and isolatesthe operating software (OS) from the low-level

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