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Bite size revision for GCSE Computer Science

Bite size revision for GCSE Computer Science

By Laura James
Helping you revise for your GCSE Computer Science exam with bite size podcast episodes from each of the topics from an experienced teacher
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1.3 Secondary Storage - uses, types & characteristics
In this slightly longer bite size podcast I discuss secondary storage: What is it? What are the 3 types you need to know about for GCSE? What are the 6 characteristics of storage types that you need to be aware of for answering analytical questions in the exam.
March 1, 2021
1.2.2 Virtual memory & flash storage
Mrs James is back discussing what you need to know about virtual memory and flash storage for your Computer Science GCSE (J276) Specifcally It covers: the need for virtual memory  flash memory Have a question? Feel free to drop me an audio message at And I'll try to answer it in the next podcast
February 21, 2021
1.2.1 RAM and ROM - their purpose and main differences
Welcome back! This bite size revision podcast covers the purpose of RAM and ROM memory types and the two main differences between them. As always if you have any questions feel free to message me here:
February 23, 2020
1.1.2 Factors that affect the performance of the CPU
I'll be discussing the 3 factors that affect the performance of the CPU, specifically : The clock speed The Cache size The number of cores If you have any questions feel free to message me here:
February 23, 2020
1.1.1 The purpose of the CPU
Today we're looking at the purpose of the CPU, specifically the following parts from the OCR Computer Science Specification ( the purpose of the CPU  Von Neumann architecture: MAR (Memory Address Register) MDR (Memory Data Register)  Program Counter  Accumulator  common CPU components and their function: ALU (Arithmetic Logic Unit) CU (Control Unit) Cache the function of the CPU as fetch and execute instructions stored in memory  clock speed
December 18, 2019
Podcast intro
This short episode is a welcome session to discuss what I will be covering (and what I won't) and a task for you to get hold of a copy of the topic list (from the OCR website) so you know what order the topics I will be covering over the coming weeks. Link is here for your information: Print it out and get highlighting and I'll be back next week with the first topic episode. Send me a voice message to ask any specific questions and I may include your questions in future episodes
November 19, 2019