1. Computers & Programming Languages

2. Lesson1- Objectives
Identify Computer System.
Identify Programming Languages
Identify Java

3. Activity 1
Define Me !! 7
Minutes

4. Parts of Computer

5. Computer
A computer is an electronic device that performs commands.
Input
Processing
Output

6. Computer Hardware

7. Book Activity P#137

8. Computer Software

9. Book Activity P#138

10. Data Representation in Computers
Computer works as a sequence of 0s and 1s.
A bit is a binary digit of 0 or 1
A byte is a sequence of 8 bits
8 bit
1024 Byte
1024 KB
1024 MB
1024 GB
1 Byte
1 KB
1 MB
1 GB
1 TB

11. Data Representation in Computers
Binary
0 or 1
1 MB =
……….
8 bits =
1 KB =
1 GB=
1 TB =
Data Representation in Computers

12. Data Representation in Computers

13. ASCII (American Standard Code for Information Interchange)
What are your notices of ASCII Code?

14. Decimal & Binary Systems

15. Converting Binary to Decimal

16. Within your group, covert the binary numbers to Decimal?
Converting Binary to Decimal
Within your group, covert the binary numbers to Decimal?
110110
100001

17. Converting Decimal to Binary

18. Within your group, covert the Decimal to Binary numbers?
Converting Decimal to Binary
Within your group, covert the Decimal to Binary numbers? 80 10
999
1000
1001
1010

19. Set of rules , symbols and special words used to build programs.
Programming Language
Set of rules , symbols and special words used to build programs.

20. Programming Language

21. Java Programming
High level language program (Source Program), introduced by microsystem in can be described in these words:
Simple
Object oriented
Secure
High performance

22. Java Platform