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WalesComputer ScienceQuick questions
Unit 4 Computer Architecture, Data, Communication and Applications
Quick questions on Hardware and communication: architecture, parallel processing and communication hardware - 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 parallel processing?Show answer
Parallel processing uses multiple processors or cores to carry out several computations at once, so a task finishes faster. It gives a large speed-up for problems that divide into independent parts (such as processing each pixel of an image) but little benefit for inherently sequential problems where each step depends on the previous result.
What is q1?Show answer
State how many memory locations a 16-line address bus can address. [1 mark]
What is q2?Show answer
State one characteristic of a problem that makes it well suited to parallel processing. [1 mark]
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