Synchronous refers to a type of operation in which two or more components are working together in a coordinated manner. The term is often used to describe the timing of events, such as when two or more machines are running at the same speed. Synchronous can also refer to the alignment of two or more signals, such as when two signals are in phase with each other. The term synchronous is often used interchangeably with the term SIMULTANEOUS, which means occurring at the same time. Inphase is another term that is related to synchronous, and it refers to two signals that are in phase with each other. Meshing is another term related to synchronous, and it refers to the alignment of two or more components so that they work together in a coordinated manner.