Which is the smallest unit in Computer.

Appeared in: RRB Staff Nurse Ahmedabad-2015

Explanation

A Kilobyte (KB) is the smallest unit of data measurement among the choices provided.
The hierarchy of these units is: Kilobyte < Megabyte < Gigabyte < Terabyte.
Specifically, 1 Megabyte equals 1,024 Kilobytes, making the Kilobyte a smaller measure.

Option B: A Megabyte (MB) is a larger unit of data than a Kilobyte. One Megabyte is equal to 1,024 Kilobytes.
Option C: A Gigabyte (GB) is significantly larger than a Kilobyte. One Gigabyte is equal to 1,024 Megabytes.
Option D: A Terabyte (TB) is the largest unit among the options provided. One Terabyte is equal to 1,024 Gigabytes.

Visual 1: Infographic: A pyramid or ladder diagram showing the hierarchy of computer data storage units from Bit to Petabyte, illustrating how each unit builds upon the previous one.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Hierarchy of computer data storage units as background academic context rather than a clinical decision trigger.
Understanding data units is fundamental for digital literacy, helping in managing files, understanding device storage capacity (e.g., on phones, laptops), and choosing internet data plans.
In a healthcare setting, this knowledge is crucial for managing electronic health records (EHRs), medical imaging files (like MRIs, which can be very large), and ensuring data is stored and transferred efficiently and securely.
What if the question asked for the absolute smallest unit of data? The answer would be a 'bit', which is a single binary digit (a 0 or a 1).

How to Approach the Question

Identify the core of the question: it asks to find the 'smallest' unit from a given list.
Recall the standard hierarchy of computer data storage prefixes: Kilo-, Mega-, Giga-, Tera-.
Remember that in this sequence, each step represents a much larger quantity (by a factor of approximately 1000 or exactly 1024).
Based on this hierarchy, 'Kilo' is the smallest prefix, so Kilobyte is the smallest unit in the list.
Eliminate the other options as they represent progressively larger amounts of data.

Concept Tested & Keywords

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Attempt every question from this paper in a timed mock, then review the full solution for each one.