Communications Research Group (CRG) was a Baton Rouge, Louisiana based company which became a major international vendor of data communications software during the 1980s. The company's software had the BLAST (blocked asynchronous transmission) file-transfer protocol at its core.
CRG was recognized as one of the 100 largest microcomputer software companies in the United States, and it was ultimately acquired by modem manufacturer U.S. Robotics in 1990.
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Communications Research Group Wikipedia(Text) CC BY-SA