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1. Number Systems.

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Presentation on theme: "1. Number Systems."— Presentation transcript:

1 1. Number Systems

2 Common Number Systems System Base Symbols Used by humans?
Used in computers? Binary 2 0, 1 No Yes Octal 8 0, 1, 2, 3, 4, 5, 6, 7 No/Yes Decimal 10 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Hexa- decimal 16 A, B, C, D, E, F

3 Quantities/Counting (1 of 3)
Decimal Binary Octal Hexa- decimal 1 2 10 3 11 4 100 5 101 6 110 7 111

4 Quantities/Counting (2 of 3)
Decimal Binary Octal Hexa- decimal 8 1000 10 9 1001 11 1010 12 A 1011 13 B 1100 14 C 1101 15 D 1110 16 E 1111 17 F

5 Quantities/Counting (3 of 3)
Decimal Binary Octal Hexa- decimal 16 10000 20 10 17 10001 21 11 18 10010 22 12 19 10011 23 13 10100 24 14 10101 25 15 10110 26 10111 27 Etc.

6 Decimal to Binary Decimal Octal Binary Hexadecimal

7 Decimal to Binary কৌশল / Technique
সংখ্যাটিকে 2 দ্বারা ক্রমাগত ভাগ করতে হবে এবং ভাগশেষকে ধারাবাহিকভাবে সংরক্ষণ করতে হবে। (Divide by two, keep track of the remainder) প্রথম ভাগশেষটি হচ্ছে LSB (LSB, least-significant bit) এভাবে যতক্ষণ পর্যন্ত ভাগশেষ শুন্য না হয় ততক্ষণ ভাগ করতে হবে। সর্বশেষ ভাগশেষটি হচ্ছে MSB (MSB, most-significant bit) Etc.

8 Example 12510 = ?2 12510 =

9 অনুশীলন 1101 11001 1001010 1011111 1111011 1011010101 Decimal Binary
13 25 74 95 123 725 1101 11001

10 Thank you


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