Binary Numbers Interactive

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Binary Numbers Interactive

Introduction: The binary code of 0s and 1s that the computer uses to store information in memory is much easier to deal with when expressed in hexadecimal. But, most of the time, people prefer to stick with the familiar Base 10 numbers we use every day.

Quiz:

Use the sections of the Binary Number Explorer to help find the answers to the following:

1. What is the binary representation of the number 7?

a. 1110

b. 1101

c. 0111

d. 0101

Answer: C

2. What number is represented with the binary code 0110?

a. 6

b. 7

c. 8

d. 9

Answer: A

Basics of Binary

3. An 8-bit binary digit can be interpreted by the computer as all of the following EXCEPT:

a. a character.

b. a number.

c. a letter.

d. an entire file

Answer: D

4. When all three colors are set to zero:

a. the light for each color is turned on.

b. the color is black.

c. the decimal and hexadecimal values are different.

d. the color is white.

Answer: B

How Do Bases Work? Using Base 10

5. What happens when you dump the 102 bucket 10 times?

a. the decimal number is 1,000

b. the example cannot display the results

c. the bucket is empty

d. it stops after nine times

Answer: A

How Do Bases Work? Using Base 16

6. What base 16 number results if you dump the 160 bucket 10 times?

a. 00A

b. 010

c. 016

d. 009

Answer: A

7. Without dumping the bucket, what do you think the results will be if you dump the 161 bucket 10 times?

a. 100

b. 0A0

c. A00

d. 090

Answer: B

Base Conversion

8. What binary number is equal to hexadecimal 8F?

a. 00800F

b. 10001111

c. 1001100

d. 143

Answer: B

RGB Color

9. When all three colors are set to zero:

a. the light for each color is turned off.

b. the color is black.

c. the decimal and hexadecimal values are the same.

d. All of the above

Answer: D

10. Which is the following is TRUE when using RGB numbers?

a. the higher the number, the lower the level of brightness

b. the higher the number, the higher the level of brightness

c. the higher the number, the lower the level of contrast

d. the higher the number, the higher the level of contrast

Answer: B

Projects:

Find Out More about How RGB Color Effects What You See Online

Task: Web pages rely on RGB color codes to display the colors you see. How do your computer settings affect what you see? Where can you get a variety of graphics to use in your own designs?

Assignment: Go to http://www.allfreebackgrounds.com/color_2.html and answer the following questions:

1. How many bits of storage are needed to display a variety of over 16 million colors on your computer screen? 24

2. The number of colors you can see on your screen is determined by what two elements of your computer system? the graphics card and the driver settings for it

3. Now that you know something about how color is displayed on a computer monitor, locate a graphic image that you think would look good on the background of a Web page. Submit the file to your instructor and site its source.

Resources:

· http://www.allfreebackgrounds.com/color_2.html

Extend Your Understanding of Binary with Bits and Bytes

Task: Learn more about how bits are used in the computer environment by viewing a tutorial.

Assignment: Go to http://computer.howstuffworks.com/bytes.htm and read the tutorial “How Bits and Bytes Work” and then summarize the information in three paragraphs.

Bytes are used to describe the capacity of both RAM and the hard drive of a computer. Bytes are made up of bits. Bits can be compared to digits in a base-10 number system. Digits represent numerical values between 0 and 9. Digits can be combined to form larger numbers and exponential powers of numbers.

Computers use a base-2 number system, also referred to as the binary number system. Bits are represented by two numbers—0 and 1—which are used to represent all data. Bit is an abbreviation of Binary digIT. By combining a series of 0 and 1, other numbers can be represented. For example, the number 19 in binary form is 10011.Eight bits are combined to form a byte. This allows for 256 different combinations ranging from 0 to 255.

Bytes are frequently used to represent individual characters in text. A common example is the ASCII character set. Large capacities of bytes are represented with prefixes such as kilo, mega, and giga. A kilobyte is about a thousand bytes, a megabyte is about a million bytes, and a gigabyte is about a billion bytes. If computer has a 2-GB hard drive, it means that the hard drive stores approximately 2 billion bytes, or exactly 2,147,483,648 bytes.

Translate Text to Binary Code

Task: Translate text into binary code.

Assignment: Visit the Web site at http://www.roubaixinteractive.com/PlayGround/Binary_Conversion/Binary_to_Text.asp and translate the following text into binary code.

Computer technology moves rapidly. Continue learning to stay up to date.