Hello World - Spring 2007

Homework 5

Attempt by: Monday, February 26
Due by: Thursday, March 1

Reading

• Chapter 4: pages 130-169 for Monday
• Chapter 4: pages 170-183 for Thursday

Practice Problems (not to turn in)

The following problems will give you extra practice, and are strongly recommended, but you don't need to turn them in. Solutions are given on pages 688-693, but don't look at the answers until you have tried working through them on your own.

• Problems 1-8 on page 142
• Problems 1-4 on page 159
• Problems 1-3 on page 169
• Problems 1-3 on page 178

Problems To Hand In

1. From the textbook: exercises 1 and 3, page 184. Show your work.

2. Convert each of the following decimal numbers to binary and hexadecimal. Show your work.

       31    128    219
   

3. From the textbook: exercises 4(c), 5, 6, and 7, page 184. Show your work.

4. Fill in the table below to show how each sequence of eight bits can be interpreted in different ways. The first row is filled in as an example. For the column labeled "ASCII", show the character that corresponds to the last seven bits of each sequence. (Hint: See figure 4.3 on page 141.)

   	hexadecimal	ASCII	unsigned	sign/magnitude	two's complement
   11000001	C1	A	193	-65	-63
   01111100
   11111110
   11011011

5. From the textbook: exercises 15 and 16, page 184. Show your work.

6. From the textbook: exercise 18, page 185. Show your work.