IGDTUW 2026 — Computer PYQ

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Question

IGDTUW 2026 — Computer PYQ

IGDTUW | Computer | 2026

In floating-point representation, which part represents the significant bits of the number?

Choose the correct answer:

Explanation

The correct option is (c) Mantissa.

Detailed Explanation:

A standard floating-point number is mathematically represented in scientific notation as:

±M×RE

Where each component serves a distinct purpose:

Mantissa (or Significand): This part contains the actual significant digits (bits) of the number. It determines the precision of the floating-point representation.
Exponent (E): This part represents the power to which the base is raised. It determines the position of the radix point (decimal/binary point) and dictates the dynamic range of the number.
Sign Bit (±): A single bit that indicates whether the number is positive (0) or negative (1).
Radix (R): The base of the number system being used (e.g., R=2 for binary systems in computer architecture, R=10 for decimal).

Because the question asks specifically for the component holding the significant bits, the correct term is the Mantissa.