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WalesComputer ScienceQuick questions
Unit 4 Computer Architecture, Data, Communication and Applications
Quick questions on Advanced data representation: floating point, normalisation and fixed point - WJEC A-Level Computer Science
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is floating-point representation?Show answer
The "floating" point means the binary point can move, set by the exponent, which lets a fixed number of bits represent both very large and very small numbers, unlike a fixed-point scheme.
What is q1?Show answer
State which part of a floating-point number determines its precision. [1 mark]
What is q2?Show answer
State what happens to the exponent when the mantissa is shifted one place to the left during normalisation. [1 mark]
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