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The 7400 chip, made up of 4 NANDs. The two additional pins source energy (+5 V) and hook up the ground. For smaller-scale logic, designers now use prefabricated logic gates from families of gadgets like the TTL 7400 sequence by Texas Devices, the CMOS 4000 collection by RCA, and their More moderen descendants. Progressively, these mounted-functiona… Read More