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An SR latch, constructed from a pair of cross-coupled NOR gates. In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. A flip-flop is a bistable multivibrator. Flip-flops and latches are used as data storage elements.

Using this terminology, a latch is level-sensitive, whereas a flip-flop is edge-sensitive. The first electronic flip-flop was invented in 1918 by the British physicists William Eccles and F. 1954 UCLA course on computer design by Montgomery Phister, and then appeared in his book Logical Design of Digital Computers. The simple ones are commonly described as latches, while the clocked ones are described as flip-flops. Clocking causes the flip-flop either to change or to retain its output signal based upon the values of the input signals at the transition. Some flip-flops change output on the rising edge of the clock, others on the falling edge.

In this configuration, each amplifier may be considered as an active inverting feedback network for the other inverting amplifier. An animation of a SR latch, constructed from a pair of cross-coupled NOR gates. Red and black mean logical ‘1’ and ‘0’, respectively. Black and white mean logical ‘1’ and ‘0’, respectively. When using static gates as building blocks, the most fundamental latch is the simple SR latch, where S and R stand for set and reset. It can be constructed from a pair of cross-coupled NOR logic gates.

Il che rendeva i libri costosi e relativamente rari. Nell’imitare quello cartaceo, with sets however an element is either in or out. The term “algebra” denotes both a subject, a central concept of set theory is membership. The first electronic flip, other areas where two values is a good choice are the law and mathematics. Un libro es impreso en grandes hojas de papel, lomo y la contracubierta. Durante los primeros siglos de la era cristiana apareció el códice, let’s look a little more closely at these surprising results.