Question

\(01\) Petabyte \((PB)\) is equal to:

• A. \(2^{40}\) Bytes
• B. \(2^{50}\) Bytes
• C. \(2^{30}\) Bytes
• D. \(2^{45}\) Bytes

Hint:

Memory units in binary: KB \(2^{10}\), MB \(2^{20}\), GB \(2^{30}\), TB \(2^{40}\), PB \(2^{50}\).

Answer 1

The Correct Option is B

Step 1: Understanding the Question:

• This question requires us to determine the equivalent value of 1 Petabyte (PB) in terms of bytes, expressed as a power of 2.

• We need to refer to standard binary memory measurement units.

Step 2: Detailed Explanation:

• In computer storage systems, units of data are measured using powers of 2. Let us look at the progression from the basic unit:

• 1 Kilobyte (KB) = \(1024\) Bytes = \(2^{10}\) Bytes

• 1 Megabyte (MB) = \(1024\) Kilobytes = \(2^{20}\) Bytes

• 1 Gigabyte (GB) = \(1024\) Megabytes = \(2^{30}\) Bytes

• 1 Terabyte (TB) = \(1024\) Gigabytes = \(2^{40}\) Bytes

• 1 Petabyte (PB) = \(1024\) Terabytes = \(2^{50}\) Bytes

• Let us analyze the given options based on this hierarchy:

• Option (A) \(2^{40}\) Bytes is equal to 1 Terabyte (TB).

• Option (B) \(2^{50}\) Bytes is equal to 1 Petabyte (PB).

• Option (C) \(2^{30}\) Bytes is equal to 1 Gigabyte (GB).

• Thus, 1 Petabyte is mathematically equivalent to \(2^{50}\) Bytes.

• This corresponds to Option (B).

Step 3: Final Answer:
The correct option is (B).