A shot clock is a countdown timer used in a variety of games and sports, proving a set amount of time that a team may possess the object of play before attempting to score a goal. Shot clocks are used in several sports including basketball, water polo, lacrosse, poker, ringette, snooker, korfball, and ten-pin bowling.It is analogous with the play clock used in American and Canadian …

In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.In clock recovery applications it is called timing jitter. Jitter is a significant, and usually undesired, factor in the design of almost all communications links.. Jitter can be quantified in the same terms as all time-varying ...