real-time clock

computer clock in the form of an integrated circuit that keeps track of the current time

en-GB/ɹeɪˈɑːl - ˈtaɪm ˈklɒk/
en-US/ɹeɪˈɑl - ˈtaɪm ˈklɑk/

زمرے:

clockcomputer hardware