1 GB is equal to
A2 to the power 30 bits
B2 to the power 30 bytes ✓ Correct
C2 to the power 20 bits
D2 to the power 20 bytes
Correct answer: (B) 2 to the power 30 bytes
Explanation
One gigabyte equals two to the power thirty bytes.
Two to the power thirty bits would be far smaller, since a byte is eight bits.
Two to the power twenty bits is smaller still and equals a fraction of a megabyte.
Two to the power twenty bytes is one megabyte, not a gigabyte.
A kilobyte is two to the power ten bytes and a megabyte is two to the power twenty bytes.
Storage capacity is measured in bytes, the basic unit for one character.
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