Question

Various Ic logic families

Answer 1

A logic family of monolithic digitalintegrated circuit devices is a group of electronic logic gates constructed using one of several different designs, usually with compatible logic levels and power supply characteristics within a family. ... Some such logic families use static techniques to minimize design complexity

Answer 2

a variety of logic IC families spawned, each offering different capabilities and facilities.

Over the years, the most widely used overall family has been the 7400 series ICs. Initially launched as straight 7400 series integrated circuits, this logic IC family has spawned many variants which has enabled it to remain in use until this day.