Computer Security

access-control alarm assets audit authorized automatic backup badges binary bits cable called central processing unit circuit classified information communications compromise computer operating computer program computer room computer security computer system control character cost cypher data files data processing decryption designated digits disk packs documents EDP center EDP equipment EDP media EDP security EDP system electrical electronic emanations employee encrypted error execution facilities fire frequency hardware identify implemented input installed instructions kilohertz least log-on loss machine magnetic tape mechanism megahertz memory mode operating system output password perimeter person personnel physical plain text printed privilege procedures protection punched cards puter random record remote terminal response security coordinator security officer sensitive information sequence signal specific stored substitution boxes Superuser telephone threat transmission unauthorized user's usually virtual memory Vulnerability wire