instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity

the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices

(computer science) a network of computers

a network of radar installations designed to detect enemy missiles or aircraft while there is still time to intercept them

an extensive electronic network (such as the internet) used for the rapid transfer of sound and video and graphics in digital form

the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices