Question

The smallest unit of data in a computer is:

• A. Bit and record
• B. Bit and field
• C. Bit and file
• D. Bit and database

Hint:

Exam Tip:
Data hierarchy:
Bit \(\rightarrow\) Byte \(\rightarrow\) Field \(\rightarrow\) Record \(\rightarrow\) File \(\rightarrow\) Database.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
In a computer, data is organized hierarchically from the smallest unit to larger structures.

Step 2: Key Hierarchy:
The hierarchy of data in a computer system is:
• Bit: The smallest unit of data (0 or 1).
• Byte: A group of 8 bits.
• Field: A group of bytes representing a single piece of information.
• Record: A collection of fields.
• File: A collection of records.
• Database: A collection of files. The smallest unit is the bit.
The question asks for the smallest unit, which is the bit.
The options combine "Bit" with something else.
The correct pairing is "Bit and record" if we are considering the hierarchy, but bit is the smallest.
The option (A) says "Bit and record", which is the correct pairing of the smallest and the next level.

Step 3: Final Answer:
Therefore, option (A) is correct.