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April 14th, 2018, 03:16 AM  #1 
Senior Member Joined: Nov 2017 From: india Posts: 188 Thanks: 1  What is application of octal number
hello what is octal deca number conversation application (965)8= ()2 
April 14th, 2018, 04:55 AM  #2 
Senior Member Joined: May 2016 From: USA Posts: 989 Thanks: 406 
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, 05:30 AM  #3 
Member Joined: Dec 2017 From: Tel Aviv Posts: 85 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, 06:09 AM  #4 
Senior Member Joined: Nov 2017 From: india Posts: 188 Thanks: 1 
no what is use of octal number and hdeca numbrr in computer

April 14th, 2018, 06:12 AM  #5 
Senior Member Joined: Oct 2009 Posts: 350 Thanks: 112  
April 14th, 2018, 07:56 AM  #6 
Member Joined: Dec 2017 From: Tel Aviv Posts: 85 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, 08:09 AM  #7 
Senior Member Joined: Nov 2017 From: india Posts: 188 Thanks: 1 
hello binary is used in circuit but where octal are used and deca are used 
April 14th, 2018, 08:43 AM  #8 
Member Joined: Dec 2017 From: Tel Aviv Posts: 85 Thanks: 3 
In Pascal, Assembly, C, C++.

April 14th, 2018, 08:45 AM  #9  
Senior Member Joined: May 2016 From: USA Posts: 989 Thanks: 406  Quote:
$101,110_2 = 56_8.$ 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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application, number, octal 
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