regarding communications. Signals that are sent and received synchronously have a set timing. This means that since the sender and receiver operate on the same clock cycle and operate essentially in fixed time intervals, errors only occur when signals are sent or received outside of the expected window of time.
Synchronous refers to blocking communications (synchronous I/O) that take place on the same thread as other computations and prevent further work until these communications are finished in the context of data processing.
