What is the primary function of the floating-point unit (FPU), historically packaged as a separate math coprocessor (such as the Intel 8087)?
Answer and explanation
Correct answer: C. To perform rapid mathematical calculations on non-integer real numbers with decimal fractions
- Step 1: Integer ALUs are optimized for whole-number calculations using two's complement and cannot directly process real fractional numbers without extensive software emulation.
- Step 2: The FPU hardware implements IEEE 754 standards to perform high-speed hardware addition, multiplication, division, and square roots on floating-point scientific values.
Answer
To perform rapid mathematical calculations on non-integer real numbers with decimal fractions
Why not the others: 'To decode binary machine instructions during the fetch stage' Instruction decoders decode binary opcodes into CPU micro-operations, not arithmetic calculations; 'To arbitrate bus conflicts between multiple peripheral devices' Bus arbiters manage bus ownership contention between devices, not mathematical computations; 'To generate pseudo-random cryptographic keys for hardware security' Hardware random number generators (TRNGs) produce cryptographic entropy, not floating-point arithmetic.
Practise more Computer Architecture and Hardware.
Free questions with an explanation for every one, and full timed General Knowledge mock tests.
More Computer Architecture and Hardware questions
- In the classical Von Neumann computer architecture, which component is responsible for coordinating and directing the operations of all othe…
- Which internal CPU register holds the memory address of the next sequential instruction waiting to be fetched and executed?
- What type of high-speed semiconductor memory is built directly into or adjacent to the CPU core using static flip-flops to minimize latency…
- What maximum physical RAM address space can theoretically be directly addressed by a computer architecture possessing a 32-bit address bus?
- Which memory technology stores each bit of data in a tiny integrated capacitor that gradually loses charge and therefore requires periodic d…
- What hardware mechanism enables high-speed peripheral devices like network cards and storage drives to transfer data directly to and from sy…