Which of the following represents the largest unit of data?

Question

BlackTom AI · Accepted Answer

Data storage units scale upward from bytes through kilobytes, megabytes, gigabytes to terabytes, so the largest listed unit is the terabyte.

1. Relevant knowledge points and concepts
- A byte is the basic unit of digital information.
- Larger units are defined as multiples of bytes. In binary-based conventions commonly used for storage: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB, 1 TB = 1024 GB.
- The sequence from smallest to largest is: Byte < Kilobyte (KB) < Megabyte (MB) < Gigabyte (GB) < Terabyte (TB).

2. Step-by-step reasoning
- Compare each choice by converting to bytes (binary convention) to see which is largest.
- Start from the smallest unit given (KB) and work up to TB.

3. Calculations and intermediate steps
- 1 KB = 1024 bytes.
- 1 MB = 1024 KB = 1024 × 1024 bytes = 1,048,576 bytes.
- 1 GB = 1024 MB = 1024 × 1,048,576 bytes = 1,073,741,824 bytes.
- 1 TB = 1024 GB = 1024 × 1,073,741,824 bytes = 1,099,511,627,776 bytes.

4. Why the correct answer is correct
- The terabyte equals 1,099,511,627,776 bytes (binary convention), which is larger than a gigabyte (1,073,741,824 bytes), a megabyte (1,048,576 bytes), and a kilobyte (1024 bytes). Therefore, terabyte is the largest unit listed.

5. Why the other options are incorrect
- a. Kilobyte (KB) is much smaller than MB, GB, and TB (only 1,024 bytes).
- b. Gigabyte (GB) is larger than KB and MB but smaller than TB (≈1.07 billion bytes).
- d. Megabyte (MB) is larger than KB but smaller than GB and TB (≈1.05 million bytes).

6. Conclusion
- The largest unit among the choices is c. Terabyte (TB). This matches the provided correct answer: c. Terabyte (TB).

Which of the following represents the largest unit of data?单项选择题

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