Intro to Computing - How Data is Represented
A computer stores data using binary. If the binary number 1001 is stored, what decimal number does it represent?
A computer stores data using binary. If the binary number 1001 is stored, what decimal number does it represent?
medium📝 Analysis Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Convert binary 1001 to decimal
Calculate (1x8) + (0x4) + (0x2) + (1x1) = 8 + 0 + 0 + 1 = 9.Step 2: Confirm decimal value
The decimal equivalent of binary 1001 is 9.Final Answer:
9 -> Option DQuick Check:
Binary 1001 = Decimal 9 [OK]
Quick Trick: Binary place values: 8,4,2,1 from left to right [OK]
Common Mistakes:
- Adding wrong place values
- Confusing binary digits order
- Mixing decimal and binary digits
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