Y10 Revision Lesson
Presentation
•
Computers
•
10th Grade
•
Hard
Roy Duguid
FREE Resource
35 Slides • 4 Questions
1
Do Now:
1. Log in
2. Go to class notebook
Complete Do Now.
2
Do Now Answers
3
Revision Lesson:
Binary & Hex conversion
Binary Addition & Shifts
Run Length Encoding
Images & Sounds
Units of information conversion
System Architecture
4
Binary & Hex conversion
Convert the following from binary to denary/decimal
01101110
5
Binary & Hex conversion
Convert the following from binary to denary/decimal
01101110
01010011
6
Binary & Hex conversion
Convert the following from binary to denary/decimal
01101110
01010011
00111110
7
Multiple Choice
Convert 10000001 to denary
128
256
129
1000002
8
Binary & Hex conversion
Other way around. Converting Denary to Binary
Convert 32 to Binary
9
Binary & Hex conversion
Other way around. Converting Denary to Binary
Convert 32 to Binary
Convert 129 to Binary
10
Binary & Hex conversion
Other way around. Converting Denary to Binary
Convert 32 to Binary
Convert 129 to Binary
Convert 70 to Binary
11
Multiple Choice
Convert 40 to Binary
00111000
00011100
11010111
00101000
12
13
14
15
16
Adding Binary
11110000
00001111
17
Adding Binary
0000
1111
18
Adding Binary
11110000
00001111
11111111
00000001
19
20
Complete Activity 1
21
Run Length Encoding
22
Run Length Encoding
23
24
2W 6B
2W 6B
2W 2B 6W
8B
2W 8B
2W 2B 6W
2B 6W
2B 4W
25
Complete Activity 2
26
Analogue to Digital Converter
27
Sample Rate:
How often (frequency) you record the amplitude of a sound wave.
The more often you record a sample the smoother the playback will sound
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30
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32
33
Multiple Choice
The amount of bits allocated per sample is called the
bit rate
sample rate
bit depth
bit sample
34
Multiple Choice
The bit rate is calculated using..
Sampling Frequency x Sample Size
Whole sample size x sample depth
sample height x width
35
Calculating file size
Size of sample =
(number of samples per second) x (number of bits per sample) x (length of sample in seconds)
sample rate x bit depth x time
36
Calculating file size
Size of sample =
(number of samples per second) x (number of bits per sample) x (length of sample in seconds)
sample rate x bit depth x time
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39
Do Now:
1. Log in
2. Go to class notebook
Complete Do Now.
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