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Because the octal number sytem is more useful for writing and clearer to read. Also, we're only using the binary system since the invention of computers which is not that long ago. Before that, there was no reason to use a binary system which is again not easy to read.

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12y ago
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9y ago

The hexadecimal system, octal, and the binary system are interoperable. Plus, think about the programmer or the computer technician at hand - it will take them longer to write something or diagnose a problem if they had to remember every single bit of 1's and 0's where they can remember the shortcuts in hexadecimal and octal instead.

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Q: Why there is need to study octal and hexidecimaln the digital machine understands only binary code?
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Binary is made up of 0's and 1's. Binary can also be called Machine Code. Binary is the 'language' that the computer understands.


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