1. Introduction to Computing Dr. Nadeem A Khan

2. Lecture 10

3. Notice: Friday’s Class in the BSc. LAB-1

4. Assignment 3 ► Check the website

5. Chapter 1 The Number Systems

6. Binary Number System What is the Base of the Decimal Number System?

7. Binary Number System The Base of the Binary System is 2

8. Binary Number System How to know the (decimal system) value of a binary number?

9. Hexadecimal Number System The Base of the Hexadecimal System is 16

10. Hexadecimal Number System The Base of the Hexadecimal System is 16 How to know the (decimal system) value of a Hexadecimal number?

11. Octal Number System The Base of the Octal Number System is 8

12. Octal Number System The Base of the Octal System is 8 How to know the (decimal system) value of a Octal number?

13. Conversions  Binary to Decimal  Decimal to Binary

14. Conversions  Hexadecimal to Decimal  Decimal to Hexadecimal

15. Conversions  Hexadecimal to Binary  Binary to Hexadecimal

16. How to do Addition ? In  Decimal System  Binary System  Hexadecimal System  Octal System

17. How to do Subtraction ? In  Decimal System  Binary System  Hexadecimal System  Octal System

18. Multiplication and Division can be expressed in terms of addition and subtraction respectively

19. Complement Representation of Numbers

20. Number Representation  Unsigned  Sign magnitude  1’s Complement  2’s Complement

21. Complement Arithmetic