2009-2010学年第1学期

2009 级《计算机导论》考试试题A卷

考试时间：2009年12月日

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。

一、Choice Questions(20 questions, 1 score for each question)

1. In the von Neumann model, the _______subsystem accepts data and programs and sends processing results to output devices.

a. ALU

b. Input/output

c. memory

d. control unit

2. FORTRAN and COBOL are examples of ________.

a. hardware

b. an operating systems

c. computer languages

d. algorithms

3. The first computing machine to use the idea of storage and programming was called_______.

a. the Madeline

b. EDV AC

c. the Babbage machine

d. the Jacquard loom

4. A 32-bit code was developed by ______ to represent symbols in all languages.

a. ANSI

b. ISO

c. EBCDIC

d. Hamming

5. The bitmap graphic method and the vector graphic method are used to represent ______in a computer.

a. audio

b. video

c. images

d. numbers

6. When converting a decimal number to binary, you repeatedly divide by _______.

a. 2

b. 8

c. 10

d. 16

7. In ______ number representation, 1111 in memory represents –0.

a. unsigned integers

b. sign-and-magnitude

c. one’s complement

d. two’s complement

8. Which number representation method is often used to convert analog signals to digital signals?

a. unsigned integers

b. sign-and magnitude

c. one’s complement

d. two’s complement

9. For an 8-bit allocation, the smallest decimal number that can be represented in two’s complement form is _____.

a. -8

b. -127

c. -128

d. -256

10. You use a bit pattern called a ________ to modify another bit pattern.

a. mask

b. carry

c. float

d. byte

11. ______ is a memory type with capacitors that need to be refreshed periodically.

a. SRAM

b. DRAM

c. ROM

d. a tape drive

12. The _____ memory contains a copy of a portion of main memory.

a. CPU

b. cache

c. main

d. ROM