Y8 Binary L1
Presentation
•
Computers
•
8th Grade
•
Practice Problem
•
Medium
Roy Duguid
Used 8+ times
FREE Resource
27 Slides • 10 Questions
1
Do Now
1. Log in
2. Go to class notebook
3. Go to Autumn > Binary L1
4. Complete Do Now
2
Big Question:
How do machines communicate?
Lesson Objectives:
Explain the concept of binary representation and its importance in computing
Convert binary numbers into denary and vice versa
Recall the binary number system and its base (base 2)
Extra Challenge:
Interpret basic ASCII codes and their corresponding characters
3
Is this how computers communicate?
4
It's closer to...
5
Binary
Definition:
Something made up of 2 parts or things
Example:
"In a game of chess the results are binary, one winner and one loser"
"bye - neri"
6
Humans count in a system called denary
Denary = 0,1,2,3,4,5,6,7,8,9
Using units, tens, hundreds, thousands etc.
Why do we count to 10?
7
Humans count in a system called denary
Denary = 0,1,2,3,4,5,6,7,8,9
Using units, tens, hundreds, thousands etc.
We can only make numbers using these digits, what happens when we count past the number 9?
8
Humans count in a system called denary
Denary = 0,1,2,3,4,5,6,7,8,9
Using units, tens, hundreds, thousands etc.
We can only make numbers using these digits, what happens when we count past the number 9?
We call this Base 10
9
Why Binary?
ON
OFF
10
Why Binary?
ON
OFF
0
1
11
Why Binary?
ON
OFF
0
1
A 0 or 1 in binary is known as a bit
12
Why Binary?
ON
OFF
0
1
A 0 or 1 in binary is known as a bit
4 is known as a nibble
13
Why Binary?
ON
OFF
0
1
A 0 or 1 in binary is known as a bit
4 is known as a nibble
8 is known as a byte
14
Why Binary?
ON
OFF
0
1
0= 0
1= 1
2= ?
15
We will be looking at 8 bits
00000001
00000011
00001011
00010101
16
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
| | | | | | | |
17
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
18
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
2+1 =3
19
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
2+1 =3
20
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 |
21
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 |
8+2+1 = 11
22
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
23
We will be looking at 8 bits
00000001
00000011
00001011
00010101
To convert these we will use a table
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
16+4+1=
21
24
Questions Ahead...
25
Multiple Choice
Computers store all data using...
Binary
Hexadecimal
Decimal
Octal
26
Multiple Choice
Binary uses...
Base 1
Base 2
Base 10
Base 100
27
Multiple Choice
Humans count using a system called...
Binary
Humanary
Denary
Numberary
28
Multiple Choice
Denary uses...
Base 1
Base 2
Base 10
Base 100
29
Multiple Select
Which of these are binary digits?
0
1
2
3
30
Multiple Choice
What are the only symbols you can use in binary?
0 and 1
1 and 2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
A, B, C, D, E,...
31
Multiple Choice
Which of these is the correct sequence for the place values for binary numbers?
128, 64, 32, 16, 8, 4, 2, 1
1, 0
100000, 10000, 1000, 100, 10, 1
1, 2, 4, 6, 8, 10, 12
32
Multiple Choice
A single binary digit is known as...
a bit
a nibble
a byte
a chomp
33
Multiple Choice
4 bits are known as...
a bit
a nibble
a byte
a chomp
34
Multiple Choice
8 bits are known as...
a bit
a nibble
a byte
a chomp
35
Complete Activity 1
36
Converting Denary to Binary...
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
| | | | | | | |
37
Complete Activity 2
Do Now
1. Log in
2. Go to class notebook
3. Go to Autumn > Binary L1
4. Complete Do Now
Show answer
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