Meaning

adjective (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devices; timing signals are derived from special characters in the data st

adjective not synchronous; not occurring or existing at the same time or having the same period or phase

originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)der. English a- English synchronous English asynchronous From a- + synchronous.

Etymology from Wiktionary, CC BY-SA 3.0