Computer Science

1. ICT Class
With Ms Lily
Enjoy and happy

2. I would like to introduce myself
Marliana
My Name is
01
You can call me
Ms Lily
02
I come from
Condet
03
My age
I’m 35 years old
04

3. Before we continue
Please introduce your self

4. Information Representation and
Multimedia
01
_______

5. What do you know about representation or multimedia
Please typing in here

6. In this chapter, you will
learn about

8. Number System
Desimal
0 1 2
3 4 5
6 7 8
9
Biner
0 1
Oktal
0 1 2
3 4 5
6 7
HeksaDesimal
0 1 2 3
4 5 6 7
8 9 A B
C D E F

9. Binary Number System
0
A switch in the OFF position
can be represented by 0
1
A switch in the ON position can
be represented by 1
Designers of computer systems adopted the binary (base 2) number system since this
allows only two values, 0 and 1. No matter how complex the system, the basic building
block in all computers is the binary number system. Since computers contain millions and
millions of tiny ‘switches’, which must be in the ON or OFF position, this lends itself
logically to the binary system

10. Who Invented Binary Number?
In the 17th
century

11. Bit is the smallest unit of binary.
Each of the binary digits are known as bits
Binary gruping always up to 8.
1 byte = 8 bit.
4 byte = ?? bit.
64 = ?? byte.

12. Denary from Binary
Converting
02

13. What you have to
remember.

14. 1st
This method involves
successive division by 2
2nd
The remainders are then
written
from bottom to top to give the
binary value.

15. Let’s try together

16. Consider the conversion of the
denary number, 107, into binary …

18. Let’s Practise

19. Let’s
Practise.

20. Please typing your answers.

21. Converting
03
Binary from Denary

22. 1st
Multiplying each digit
by the power of two
given number
2nd

23. Let’s try together

24. 179

25. Let’s
Practise.

26. Please typing your answers.

27. Addition and Subtraction
Binary
04

29. Binary Addition
1 1 0 1 1 0 1 0

31. Tablet app
You can replace the image on the screen
with your own work. Just right-click on it
and select “Replace image”

32. Let’s try together

33. Insert your main notes
Math
Subject
Drawing
Insert your
text here!
Insert your
text here!
Insert your
text here!
Insert your
text here!
Insert your
text here!
Insert your
text here!
Insert your
text here!
Insert your
text here!
Next activities

34. Last reminders
Important task
You can enter here something
interesting to do, or maybe an
important reminder