38 Computer -- Number System

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Octal to Decimal Conversion

# Whole Number Conversion
→ Octal Number is converted to decimal number by calculating the sum of the product of each octal digit and its corresponding place value in term of power of 8 which begins from 0 and increases for integer part. 
Example;

Fractional Conversion(Only for Grade-XI)
→ The integer part for the fractional Octal Number is converted by the same method shown above; for fractional part we calculate the sum of the product of each octal digit and its corresponding place value in term of power of 8 from -1 which decreases as we move right to fractional part. 
Example;

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