请选择合适的单词填入空格。 A. volatile B. debugger C. modem D. DBMS E. CSMA/CD F. digit G. statements H. active I. equals J. complier K. instructions L. byte M. passive N. device O. bugs P. temporary Q. eight 1 、 A computer is an electronic________ that can receive a set of _________ . 2 、 The smallest unit of information handled by a computer is bit, which is the abbreviation of binary_________ . A group of__________ bits is called a___________ . 3 、 A which stands for modulator-demodulator, is a device that connects a computer to a telephone line and allow information to be transmitted or reliev ed from another computer. 4 、 It can be said that having a steady power source is important for a computer because RAM is memory. 5 、 Programming language use specific types of , or instructions, to provide functional structure to the program. 6 、 Programs seldom work correctly the first time, so a program called a is often used to help find problems called . 7 、 A translates all the source code of a program written in high-level languages into object code prior to the execution of the program. 8 、 A defines, creates, and maintains a database. 9 、 In an Ethernet system, the right to transmit message is controlled by the protocol known as . 10 、 The peer to peer model involves two process communicating as and usually executing on a basis. 11 、 network security attacks attempts to learn or make use of information from the system without affecting system resources, whereas attacks attempt to alter system resources or affect their operation.