吉大 2008级计算机学院-计算机导论试题A卷

2008级计算机学院-计算机导论试题A卷

2007-2008学年 第1学期

2008级《计算机导论》考试试题A卷

考试时间：2008年12月28

班级 学号 姓名

请将答案写在答题纸上，写明题号，不必抄题，字迹工整、清晰；

请在答题纸和试题纸上都写上你的班级，学号和姓名，交卷时请将试题纸、答题纸和草纸

一并交上来。

Ⅰ.Choice Questions(30 questions, 1 score for each question)

1. Every computer today is based on the ________ model..

A. Intel B. Microsoft C. von Neumann D. input/output

2. The place where programs and data are stored during processing is ________..

A. display B. hard disk C. floppy disk D. memory

3. A computer stores data as a ________ pattern.

A. binary B. hexadecimal C. unary D. numeric

4. An 8-bit pattern can represent up to ________ symbols.

A. 128 B. 256 C. 16 D. 8

5. A byte consists of ______ bits.

A. 2 B. 4 C. 8 D. 1

6. The step by step solution that expresses the logical solution to a particular problem of interest is called a(n) ________.

A. program B. answer C. algorithm D. process

7. The ASCII character set includes ________ characters.

A. 4,294967296 B. 256 C. 65536 D. 127

8. The most common way to represent signed integers today is ________.

A. two’s complement B. one’s complement C. sign-and magnitude D. unsigned integers

9.What is -31 in Excess_127 notation? ________

A. 01100001 B. 01100000 C. 10011111 D. 11100001

10.To subtract two binary numbers, take the ________ of the second number, and then add.

A. inverse B. one's complement C. two's complement D. square root

11. Using the XOR (exclusive OR) operator, if more than one input is 1, the output is ________.

A. 0 B. 1 C. indeterminate D. equal to the number of inputs that are 1

12.If you make a mask of all 0s and then AND the bit pattern and the mask, you will _______.

A. set all the bits of the pattern B. unset all the bits of the pattern C. randomize the bits of the pattern D. complement the bits of the pattern

13. The ______ is a computer subsystem that performs operations on data.

A. memory B. I/O hardware C. CPU D. RAM