Interactive Computing

Interactive Computing

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Of course, bar codes have been with us for several years, plagued by high cost and ineffective system design which have dampened some usersa#39; enthusiasm. ... HP has introduced its new wand into two separate but complementary markets: its HEDS-3000 wand produces a TTL output data stream for connection to ... When the computer has verified the input, the operator is signalled, usually with a beep.


Title:Interactive Computing
Author: Association of Computer Users (U.S.).
Publisher: - 1980
ISBN-13:

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