This document provides an overview of data representation and number systems. It discusses that a number system is a set of values used to represent different characters or quantities in computers. Common number systems include binary, octal, decimal, and hexadecimal. The document explains the concept of radix or base for a number system and provides examples of converting between different number systems, including binary to octal, octal to binary, binary to decimal, and more. It also mentions ASCII (American Standard Code for Information Interchange) for representing text characters as integers.

1. Unit-2 Data representation
Contents of the class
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No System types
Why No Systems
Conversion of No Systems
ASCII
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2. What is No System?
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A value or a set of values used to represent different characters or quantities is
known as No System.
Eg......
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3. Why No Systems?
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The communication via computers is in digital.
Therefore it’s necessary to understand the no system to represent our words
through various No Systems
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5. Types of No Systems
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6. Base or Radix means
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Base or Radix means – The total no of digits of the no system
Eg. Two digits (0 and 1) in Binary No System
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7. 1)Binary No System
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8. Octal No Systems
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9. Decimal No System
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10. Hexadecimal No System
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11. All nos conversation in one
That’s ASCII Table
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12. Integer & Fractions?
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17. Eg...
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22. No Systems Conversion (12)
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2.
3.
4.
5.
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7.
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10.
11.
12.
Binary-Octal
Octal – Binary
Binary – Decimal
Decimal-Binary
Binary –Hexadecimal
Hexadecimal – Binary
Octal – Decimal
Decimal – Octal
Octal – Hexadecimal
Hexadecimal – Octal
Hexadecimal – Decimal
Decimal – Hexadecimal
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23. 1.Binary to Octal
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24. 2.Octal – Binary (Follow the Table Right)
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25. 3.Binary – Decimal
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26. 4.Decimal – Binary Ans= 11101
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27. 5.Binary – Hexadecimal ( follow the Table)
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28. 6.Hexadecimal – Binary
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29. 7.Octal – Decimal
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30. 8.Decimal – Octal
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31. 9.Octal – Hexadecimal One more example is
another slide
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1.
2.
3.
Techniques
Convert Octal to binary ( than group it into 3 digits)
Than group it into 4 digits group
Than convert the group(Binary /4 digits groups) to Hexadecimal

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33. Unit 2 - Continues....
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34. Logic Gates - Continues- Part 1
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35. Part-2 Booleans searching is based on Logic
gates
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36. Part-3
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37. BM-1
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38. Also called as Nesting
Eg-1
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39. BM-2

40. Also called as

41. If no Quotations?

42. Use of Phrase ( )

43. Use of ( )

44. Using ( ) in Data bases Eg.1

45. BM-3

46. Also known as...

47. So ,the result is ..
 Eg-1

48. Eg-2

49. Eg-3

50. Use of Asterisk/Truncation

51. Conclusion -1

52. Conclusion -2
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All Booleans operations & Modifiers are based on Logic gates of George
Booleans
All data flows with output
Of these logic gates..

53. Circuits in Cpu

54. Logic gates View

55. All 7 logic gates /circuits are in Cpu/
Microprocessor

56. Unit -4 Telecommunication fundamentals
 Going to It now....