<hardware> An edge triggered SR flip-flop with extra logic such that only one of the R and S inputs is enabled at any time. This prevents a race condition which can occur when both inputs of an RS flip-flop are active at the same time. In a JK flip-flop the R and S inputs are renamed J and K. The set input (J) is only enabled when the flip-flop is reset and K when it is set. If both J and K inputs are held active then the outputs will change ("togle") on each falling edge of the clock. JK flip-flops can be used to build a binary counter with a reset input. http://play-hookey.com/digital/logic7.html. [Was it named after Jack Kilby?] (2004-07-17)

<hardware> (Or "RS flip-flop") A "set/reset" flip-flop in which activating the "S" input will switch it to one stable state and activating the "R" input will switch it to the other state. The outputs of a basic SR flip-flop change whenever its R or S inputs change appropriately. A clocked SR flip-flop has an extra clock input which enables or disables the other two inputs. When they are disabled the outputs remain constant. If we connect two clocked SR flip-flops so that the Q and /Q outputs of the first, "master" flip-flop drive the S and R inputs of the second, "slave" flip-flop, and we drive the slave's clock input with an inverted version of the master's clock, then we have an edge-triggered RS flip-flop. The external R and S inputs of this device are latched on one edge (transition) of the clock (e.g. the falling edge) and the outputs will only change on the next opposite (rising) edge. If both R and S inputs are active (when enabled), a {race condition} occurs and the outputs will be in an indeterminate state. A JK flip-flop avoids this possibility. http://play-hookey.com/digital/logic4.html. (1997-05-15)

<hardware> A digital logic device that stores the status of its "D" input whenever its clock input makes a certain transition (low to high or high to low). The output, "Q", shows the currently stored value. Compare J-K flip-flop. (1995-03-28)

In algebraic geometry, flips and flops are codimension-2 surgery operations arising in the minimal model program, given by blowing up along a relative canonical ring. In dimension 3 flips are used to construct minimal models, and any two birationally equivalent minimal models are connected by a sequence of flops.

(flip-flops, flip-flopping, flip-flopped)

Flip-flops are a simple type of footwear in which there is a band between the big toe and the other toes.

<hardware> A digital logic circuit that can be in one of two states which it switches (or "toggles") between under control of its inputs. It can thus be considered as a one bit memory. Three types of flip-flop are common: the {SR flip-flop}, the JK flip-flop and the D-type flip-flop (or latch). Early literature refers to the "Eccles-Jordan circuit" and the "Eccles-Jordan binary counter", using two vacuum tubes as the active (amplifying) elements for each bit of information storage. Later implementations using bipolar transistors could operate at up to 20 million state transitions per second as early as 1963. (1995-11-11)

Flip-Flop is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who.

In basketball, a flop is an intentional fall or stagger by a player after little or no physical contact by an opposing player in order to draw a personal foul call by an official against the opponent. The move is sometimes called acting, as in "acting as if he was fouled".