Question 1

How do you write numbers in Roman numerals?

Accepted Answer

I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Subtraction rule: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900.

Question 2

What is the largest Roman numeral?

Accepted Answer

Standard notation goes to 3999 (MMMCMXCIX). Vinculum (overline) multiplies by 1000 for larger numbers.

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.

Decimal to Roman Numerals Converter

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