Question

IEEE 754 single precision uses:

• A. 16 bits
• B. 32 bits
• C. 64 bits
• D. 128 bits

Hint:

Remember these IEEE 754 standards: Single Precision = 32 bits Double Precision = 64 bits

Answer 1

The Correct Option is B

Step 1: Know the standard.
IEEE 754 is the common rule computers follow to store real numbers in floating-point form.

Step 2: Recall its formats.
It defines single precision and double precision, each using a fixed number of bits.

Step 3: Focus on single precision.
Single precision splits its storage into three parts: a sign, an exponent, and a mantissa.

Step 4: List the bit counts.
Sign $= 1$ bit, exponent $= 8$ bits, mantissa $= 23$ bits.

Step 5: Add them together.
\[ 1 + 8 + 23 = 32 \]
Step 6: Match to the options.
So single precision uses $32$ bits, which is option (B). Double precision is the one that uses $64$ bits.
\[ \boxed{32 \text{ bits}} \]