What is octal number system in computer class 7?

What is octal number system in computer class 7?

OCTAL NUMBER SYSTEM: The octal number system employs a base 8. It thus requires eight symbols i.e. the decimal symbols 0, 1,2,3,4,5,6,7. Octal decimal conversions are done by multiplying with 8. HEXADECIMAL SYSTEM: Sixteen symbols used in hexadecimal system are 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E and F; hence base is 16.

What is an octal number and hexadecimal number system?

The octal number system is a base-8 number system and uses the digits 0 – 7 to represent numbers. The hexadecimal number system is a base-16 number system and uses the digits 0 – 9 along with the letters A – F to represent numbers.

How do you find the octal equivalent?

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In decimal to binary, we divide the number by 2, in decimal to hexadecimal we divide the number by 16. In case of decimal to octal, we divide the number by 8 and write the remainders in the reverse order to get the equivalent octal number.

How do I find my octal number?

Why 9 is not a octal number?

The digits used are 0, 1, 2, 3, 4, 5, 6 & 7. All the other digits can be expressed using these 8 digits. You will never see 8 or 9 in any of the numbers in the octal system. This is because the total number of digits in the number system is 8.

What are decimal binary octal and hexadecimal systems?

Base 10 (Decimal) — Represent any number using 10 digits [0–9] Base 2 (Binary) — Represent any number using 2 digits [0–1] Base 8 (Octal) — Represent any number using 8 digits [0–7] Base 16(Hexadecimal) — Represent any number using 10 digits and 6 characters [0–9, A, B, C, D, E, F]

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Where did the octal system come from?

Octal refers to the base-8 numbering system. It comes from the Latin word for eight. The octal numbering system uses the numerals 0-1-2-3-4-5-6-7. In computing environments, it is commonly used as a shorter representation of binary numbers by grouping binary digits into threes.

Where is octal used?

What are the Uses of Octal Numbers? The Octal Number system is widely used in computer application sectors and digital numbering systems. The computing systems use 16-bit, 32-bit or 64-bit word which is further divided into 8-bits words. The octal number is also used in the aviation sector in the form of a code.

Why do we use octal and hexadecimal number systems and where do we apply octal and hexadecimal number systems?

Octal and hex use the human advantage that they can work with lots of symbols while it is still easily convertible back and forth between binary, because every hex digit represents 4 binary digits (16=24) and every octal digit represents 3 (8=23).

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How to count in octal?

– Take binary number – Divide the binary digits into groups of three (starting from right) for integer part and start from left for fraction part. – Convert each group of three binary digits to one octal digit.

How to convert decimal to octal?

If the given decimal number is less than 8,the octal equivalent is the same. If the given number is greater than 7,divide the number by 8.

  • Write down the remainder.
  • Divide the part before the decimal point of your quotient by 8 again.
  • Write down the remainder.

    • What is an octal integer?

    In the octal double method, the integer octal number is divided by the digit 8. And for converting the fractional decimal number into an octal number, it is multiplied by the digit 8 and record the carry. When these carry read down, it gives the fractional octal number.

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