Binary Unit
Student Name:
Class:
Lesson 1
Introduction to binary
Morse Code
Add a morse code table picture here
Write a secret message in Morse code here.
Why do computers use binary?
What is binary?
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What do the following represent in binary?
bit |
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nibble |
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byte |
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Lesson 2
Binary Numbers
Describe the 3 steps for decimal to binary conversion.
Step 1 |
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Step 2 |
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Step 3 |
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Describe the 3 steps for binary to decimal conversion.
Step 1 |
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Step 2 |
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Step 3 |
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Conversion practice
Decimal | Binary |
75 | |
4 | |
200 | |
158 | |
9 | |
Decimal | Binary |
| 11101011 |
| 00101101 |
| 00001001 |
| 00000001 |
| 11111111 |
Lesson 3
Text in Binary
Describe the process of converting from text to binary
Convert your name from text to binary
B | o | b |
66 | 111 | 98 |
01000010 | 01101111 | 01100010 |
01000010 01101111 01100010 | ||
Replace the table below with a table converting your own first name to binary ( or the first 6 letters if you have a really long name!
Describe the process of converting from binary to text
What are two limitations of ASCII?
Lesson 4
B & W Images in Binary
Convert this image to binary on a 8by8 grid
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Binary Output
Convert this binary to an 8x8 image
00111100 01000010
10101001 10101001
10000101 10111001
01000010 00111100
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Click in a cell and click the paint pot tool to change the background colour
Advantages and disadvantages of bitmaps
Advantages
Disadvantages
Lesson 5
Grayscale Images in Binary
Black and white versus grayscale images.
What is the difference between a black & white and grayscale image? Add images to support your answer!
Paste a black & white image here.
Paste a grayscale image here
How do grayscale images work?
Describe how grayscale images are represented in binary
Paste a screen snipping (use the snipping tool) here of your activity 1 grayscale image you created.
Lesson 6
Colour Images in Binary
Explain how LED TVs display different colours.
Description:
Diagram
Fill in the correct RGB on/off values for these colours
| | on,off,off | |
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Match up the colours to the rgb values!
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127,127,255 |
100,100,100 |
0,255,255 |
0,0,0 |
255,255,0 |
255,175,200 |
255,255,255 |
What are the differences between lossless and lossy compression?
Lossless:
Lossy:
Lesson 7
Sound in binary
Describe how a microphone works:
Description
Diagram
Describe how a sound wave is converted from analogue to digital
Description
Add the correct sampling rates for these uses.
Device | Sampling Rate |
Telephone Calls | |
VOIP | |
CDs and MP3 | |
Professional equipment and DVDs | |
Why does sampling rate affect the quality of a recorded sound wave |
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