CS1020 Introduction to Computers
Section 1
Midterm 1
Date: Feb 2, 2004

Student Name:
Last 4 digit of student ID:

Multiple choice

1. A central processing unit (CPU) is a
a. hardware
b. software
c. an I/O device

2. PDA stands for
a. processor digital add-on
b. protocol disk administrator
c. personal digital assistance
d. primary digital assistance

3. Which one is a peripheral equipment?
a. primary memory
b. hard drive
c. scanner
d. cache memory

4. RAM is an example of
a. I/O device
b. peripheral equipment
c. primary memory
d. secondary memory

5. Which one of the following technology is not used to make flat panel monitor?
a. CRT
b. TFT
c. LCD
d. gas plasma

6. The electrical circuitry which executes instructions is
a. CPU
b. cache
c. secondary storage
d. register

7. What does a CPU do during I-time?
a. diredts the ALU to the actual operation
b. move data from memory to the ALU registers
c. directory ALU to store the result in memory or registers
d. decodes the instruction, determines the memory location

Short Questions

1. What are the 4 main areas of data handling?

2. What are the 3 fundamental characteristics of computers?

3. What are volatile and non-volatile memory? For each of them, give 2 examples.

4. What's the long form of ALU? What does it do?

5. What's I-time? What does a CPU do during I-time?

6. How many bits are required to identify 14 combinations?

7. If the width of a bus is 2^m (2 to the power of m) and the speed of the bus is n Mhz. Calculate the bus transfer rate. Illustrate your steps.

8. In Google, we have the OR operator. Do we have the AND operator? If yes, shown and example. Otherwise, explain why.

9. Name the 3 factors deciding the access time of a hard drive. Also, give their definitions.

10. Give the rotational speed of a hard drive is x revolutions per y seconds. Calculate the average rotational delay of the disk. Illustrate your answer.

11. If the search text is World War I, will 'I' be included in the search? If no, how to enforce the Google search engine to include 'I' in the search?

12. Formulate the search text if I want to search for information about vaccine injection and I also want to include the synonyms of vaccine in the search.

13. If my search text is competency information, will web pages containing the following text be shown? Justify your answer.

information and competency

14. If I want to search for web pages containing the phrases

Turing Machine

or

computational model

but without the keyword

finite automata

and

pushdown automata

Also, the web pages must be on the domain .edu. Formulate the search text.