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 April 14th, 2018, 04:16 AM #1 Banned Camp   Joined: Nov 2017 From: india Posts: 204 Thanks: 2 What is application of octal number hello what is octal deca number conversation application (965)8= ()2
 April 14th, 2018, 05:55 AM #2 Senior Member   Joined: May 2016 From: USA Posts: 1,306 Thanks: 548 Is there any possible reason why this is posted under economics? Is the question $965_8 = x_2?$ If so, there is no answer because 965 is not a legitimate octal number? Or is the question $965_{10} = x_8?$ Or is the question "what is the practical use of octal notations?"
 April 14th, 2018, 06:30 AM #3 Banned Camp   Joined: Dec 2017 From: Tel Aviv Posts: 87 Thanks: 3 I expalin your error in the question. In base of number the digit in presention of number can't be above than the base. So, 965 in octal can't be legitimate because of 9 (9 > 8 ) and in every base the numbers is lower than the base. More example: 1213 in base 2 isn't legitimate 1213 in base 4 is legitimate 555 in base 6 is legitimate 555 in base 5 isn't legitimate (the digit 5 = 5, and it need to be lower than). Understood?
 April 14th, 2018, 07:09 AM #4 Banned Camp   Joined: Nov 2017 From: india Posts: 204 Thanks: 2 no what is use of octal number and hdeca numbrr in computer
April 14th, 2018, 07:12 AM   #5
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Quote:
 Originally Posted by integration no what is use of octal number and hdeca numbrr in computer
They're very important! They make things like google work well. Google is a very useful site where you can look up this very question.

 April 14th, 2018, 08:56 AM #6 Banned Camp   Joined: Dec 2017 From: Tel Aviv Posts: 87 Thanks: 3 It is for convience when you use numbers and instruction of computer. The use of them facilite the programming of computer program, to find error in the computer and to do instruction in Assembler.
 April 14th, 2018, 09:09 AM #7 Banned Camp   Joined: Nov 2017 From: india Posts: 204 Thanks: 2 hello binary is used in circuit but where octal are used and deca are used
 April 14th, 2018, 09:43 AM #8 Banned Camp   Joined: Dec 2017 From: Tel Aviv Posts: 87 Thanks: 3 In Pascal, Assembly, C, C++.
April 14th, 2018, 09:45 AM   #9
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Quote:
 Originally Posted by integration hello binary is used in circuit but where octal are used and deca are used
Octal and hexadecimal are convenient ways to abbreviate binary numbers exactly.

$101,110_2 = 56_8.$

How do I know that?

$101_2 = 5_8 \text { and } 110_2 = 6_8.$

$1010,0001_2 = A1_{16}.$

How do I know that?

$1010_2 = A_{16} \text { and } 0001_2 = 1_{16}.$

It is quicker and less error prone for humans to use octal and hexadecimal than to use binary.

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