C语言考试资料汇总.doc

C语言考试资料汇总 Quick Quiz 1 The smallest and most basic data item in a computer is a ____________________; it is really a switch that can be either open (0) or closed (1). Answer: bit A byte is a grouping of ___________________. A byte can assume 256 distinct patterns. Answer: eight bits What is the ALU of a computer? Answer: The Arithmetic and Logic Unit (ALU) of a computer performs all of the computations, such as addition, subtraction, comparisons, and so on, that a computer provides. What is the control unit of a computer? Answer: The control unit of a computer directs and monitors the overall operation of the computer. A(n) ____________________ allows a computer to read or write any one file or program independent of its position on the storage medium. Answer: direct access storage device (DASD) direct access storage device DASD What are the two principal parts of the CPU? What is the function of each part? Answer: The two principal parts of the CPU are the Control Unit and the Arithmetic and Logic Unit (ALU). The Control Unit monitors the overall operation of the computer while the ALU performs all the arithmetic and logic functions provided by the system. Quick Quiz 2 What is an assembly language? Answer: Programming languages that use the substitution of word-like symbols, such as ADD, SUB, MUL, for the binary opcodes, and both decimal numbers and labels for memory addresses are referred to as assembly languages. The program that translates a high-level source program as a complete unit before any individual statement is executed is called a(n) ____________________. Answer: compiler What is a linker? Answer: A linker combines additional machine language code with the object program to create a final executable program. When English phrases are used to describe an algorithm (the processing steps), the description is called ____________________. Answer: pseudocode Quick Quiz 3 What is the software development process? Answer: The technique used by professional so