Electronics and computing
* Asynchrony (computer programming), the occurrence of events independent of the main program flow, and ways to deal with such events ** Async/await * Asynchronous system, a system having no global clock, instead operating under distributed control ** Asynchronous circuit, a sequential digital logic circuit not governed by a clock circuit or signal ** Asynchronous communication, transmission of data without the use of an external clock signal * Asynchronous cellular automaton, a mathematical model of discrete cells which update their state independently * Asynchronous operation, a sequence of operations executed out of time coincidence with any eventOther uses
* Asynchrony (game theory), when players in games update their strategies at different time intervals * Asynchronous learning, an educational method in which the teacher and student are separated in time * Asynchronous motor, a type of electric motor * Asynchronous multiplayer, a form of multiplayer gameplay in video games *See also
* ''async'' (album), 2017 album by Japanese musician and composer Ryuichi Sakamoto * {{disambiguation