UPPCL AE 2018:22

Question

If we decide to stay away from $\text{IEEE 754}$ format by making our Exponent field $10$ bits wide and our Mantissa field $21$ bits wide, then which of the following statement is $\text{TRUE}$?

• A. It will provide less precision as there will be fewer Mantissa bits
• B. It will provide more precision as there will be fewer Mantissa bits
• C. None of the above
• D. It will not change the precision

Answer 1

this will help.

https://andybargh.com/fixed-and-floating-point-binary/

Answer 2

Precision depends on the bits in Mantisa. More the bits on Mantisa, more is the precision and vice-versa.

Range of numbers depends on Exponent. More the bits on expoenet, more is the range and vice-versa.