

All about numbers
Presentation
•
Computers
•
10th Grade
•
Medium
David McLean
Used 4+ times
FREE Resource
18 Slides • 12 Questions
1
All about numbers
By David McLean
2
Multiple Choice
This is the _______. It connects many parts together.
motherboard
hard drive
SD card
fan
3
Multiple Choice
This is the _____. It is the brain of the computer.
OS
Graphical User Interface
CPU
USB
4
Multiple Select
Select the input (入力) devices.
keyboard
mouse
microphone
speaker
5
Multiple Choice
How many robots?
2 robots
10 robots
6
Multiple Choice
How many birds?
1
3
11
7
Multiple Choice
How many cats?
100
1
4
14
8
10 robots
11 birds
100 cats
9
Why do use the numbers 0123456789?
Maybe because we have ten fingers. It's easy to understand.
Ten Fingers
10
Open Ended
What if we only had one finger? What numbers would we use to count?
指が1本しかない場合はどうなりますか? 数えるためにどのような数字を使用しますか?
11
Yes or no.
On or off.
0 or 1.
Computers only understand two numbers: 0 and 1
12
A single 0 or 1 is called a bit.
単一の0または1はビットと呼ばれます。
bit
byte (B)
0
0110 0011
Eight bits are called a byte. A single unit of data (A, B, Z...) is a byte.
8ビットはバイトと呼ばれます。 データの単一ユニット(A、B、Z ...)はバイトです。
Upper bit 上位 Lower bit 下位
13
File sizes can be measured in KB.
ファイルサイズはKB単位で測定できます。
1,024B = 1 Kilobyte (KB)
Many MB of data can be put on a CD-ROM.
多くのMBのデータをCD-ROMに入れることができます。
1,024KB = 1 Megabyte (MB)
Many GB of data can be put on a hard disk, DVD, etc.
何GBものデータをハードディスクやDVDなどに入れることができます。
1,024MB = 1 Gigabyte (GB)
14
Several terabytes of data can be put on a hard disk or SSD.
数テラバイトのデータをハードディスクまたはSSDに置くことができます。
1,024GB = 1 Terabyte (TB)
A data center holds many petabytes of data.
データセンターは、数ペタバイトのデータを保持しています。
1,024TB = 1 Petabyte (PB)
15
Decimal to Binary
Keep dividing by two! The answer will be the remainders put together backwards.
2 / 60 Remainder
2 / 30 0
2 / 15 0
2 / 7 1
2 / 3 1
1 1
残り
Decimal Binary
60 111100
16
Fill in the Blanks
Type answer...
17
Fill in the Blanks
Type answer...
18
Fill in the Blanks
Type answer...
19
1 5 7 9
103
102
101
100
x
x
x
x
1,000
500
70
9
+
+
+
= 1,579
20
1 1 0 0 1
24
23
22
21
x
x
x
x
16
8
0
0
+
+
+
= 25
20
+
1
21
Fill in the Blanks
Type answer...
22
1 1 1 1 0
Some text here about the topic of discussion
24
23
22
21
x
x
x
x
16
8
4
2
+
+
+
= 30
20
+
0
23
Video time
24
Open Ended
You have 16 fingers. What numbers do you use to count?
あなたは16本の指を持っています。 数えるのに何を使いますか?
25
26
41914?
Are you sure?
27
28
29
30
学習ノート P. 8 - 9, #1-7
教科書 P. 14 - 15
All about numbers
By David McLean
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