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What is the complete writing of IC LSM and other English used in fast food industry, and what does it mean? What other English abbreviations are there? thank you
The full name of IC card is integrated circuit card, also known as smart card. Can read and write, large capacity, encryption function, reliable data recording, more convenient to use, such as all-in-one card system, consumer system.

LSM, linear sequential machine, linear sequential machine, screen management system.