RS Flip Flop with truth table in urdu hindi|Types of Flip Flop|Waveform of RS Flip Flop The first flip-flop was invented in early 1918 by the British physicists William Eccles and F. W. Jordan.It was initially called the Eccles–Jordan trigger circuit and consisted of two active elements (vacuum tubes).The design was used in the 1943 British Colossus codebreaking computer and such circuits and their transistorized versions were common in computers even after the introduction of integrated circuits, though flip-flops made from logic gates are also common now. Early flip-flops were known variously as trigger circuits or multivibrators.


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