In a computer, the( )is the part that processes all the data and makes the computer work.
综合知识
72/75
A( )is a computer system or program that automatically prevents an unauthorized person from gaining access to a computer when it is connected to a network such as the Internet.
综合知识
73/75
A fault in a machine, especially in a computer system or program is called( )。
综合知识
74/75
The ( ) is a set of programs that controls the way a computer works and runs other programs.
综合知识
75/75
An international computer network connecting other networks and computers, the biggest network of the world, is called( )。