Among the following common storage units, which one represents the largest capacity of computer data storage?

Introduction / Context:
This question tests your understanding of the hierarchy of data storage units in computing. When you buy a hard disk, memory card or solid state drive, its capacity is expressed in units such as kilobytes, megabytes, gigabytes or terabytes. Knowing which unit is larger is important for comparing storage sizes and for interpreting specifications correctly in real life and in exams. Here you are asked to identify the largest unit among the given choices.

Given Data / Assumptions:

• Units mentioned include KB, MB, GB and TB, which stand for kilobyte, megabyte, gigabyte and terabyte respectively.
• The question asks specifically for the largest unit of storage among these options.
• We assume the standard order of magnitude used in computer science and hardware marketing.
• Byte is the basic unit but is smaller than all of the listed larger units.

Concept / Approach:
Data storage units follow a clear hierarchy in which each step represents a much larger quantity of bytes. Roughly, one kilobyte is about one thousand bytes, one megabyte is about one thousand kilobytes, one gigabyte is about one thousand megabytes and one terabyte is about one thousand gigabytes. Although binary prefixes can be slightly different, the ordering by size remains the same. Therefore, among KB, MB, GB and TB, the terabyte is the largest unit, followed by gigabyte, megabyte and kilobyte. This makes TB (terabyte) the correct answer to the question about the largest storage unit in the list.

Step-by-Step Solution:

Verification / Alternative check:
If you examine typical storage devices, small USB drives may have capacities like 8 GB or 32 GB, while large external hard drives may be labelled 1 TB or 2 TB. The difference in price and capacity reflects the fact that TB is much larger than GB and MB. Reference tables in computer awareness books also present the sequence from KB to TB with each step representing approximately one thousand times more storage than the previous step. Based on these real world examples and documented tables, TB is clearly the largest unit listed in the question options.

Why Other Options Are Wrong:

• GB (gigabyte): A gigabyte is large but still smaller than a terabyte, which contains roughly one thousand gigabytes.
• KB (kilobyte): Kilobytes represent very small amounts of data and are far below megabytes, gigabytes and terabytes.
• MB (megabyte): A megabyte is larger than a kilobyte but much smaller than gigabytes and terabytes.
• Byte: A byte is the base storage unit and is smaller than all of the higher level units listed above.

Common Pitfalls:
Some learners mix up the order of giga and tera because both terms sound similar and both represent very large capacities. A simple way to remember the ordering is to think of kilo as thousand, mega as million, giga as billion and tera as trillion. This mirrors the increasing scale of the storage units and helps you quickly decide which one is bigger. During exams, mentally listing the units in order from smallest to largest before answering can prevent mistakes when similar sounding terms appear together.

Final Answer:
The largest unit of storage among the given options is TB (terabyte).