Question 1

How do you convert binary to octal?

Accepted Answer

Group binary digits by threes from right. 101110 = 101 110 = 5 6 = 56 octal.

Question 2

Why use octal?

Accepted Answer

Historically for Unix permissions (chmod 755). Each digit represents 3 bits. Less common now than hex.

Question 3

Why do computers use binary?

Accepted Answer

Electronic circuits have two states: on/off, high/low voltage. Binary (0 and 1) maps directly to these states, making digital logic simpler and more reliable.

Question 4

Why is hexadecimal used in programming?

Accepted Answer

Hex is compact: each digit represents 4 binary bits. A byte (8 bits) is exactly 2 hex digits (00-FF), making memory addresses and color codes readable.

Binary to Octal Number Converter - Free Online Tool

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