单选题 The process of identifying an individual,usually based on a username and password.

单选题 Integrated circuits did for the third-generation what transistors did for the ____ generation.

单选题 A device that converts a signal whose input is information in the analog form and whose output is the same information in digital form.

单选题 Also called end-user programs,includes database programs,word processors,and spreadsheets.

单选题 The CPU mounts in a special socket that uses a latching mechanism to hole it ____.

单选题 The dissemination of any form of radio electric communications by means of Hertzian waves intended to be received by the public.

单选题 Mainframe computer is a powerful ____ computer.

单选题 A processor is a functional unit that interprets and carries out ____.