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GCSE Computer Science · OCR

Performance

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Course

1. Computer Systems

1.1 Systems Architecture

1.1.1 Architecture of the CPU 1.1.2 CPU Performance 1.1.3 Embedded Systems Module Review

1.2 Memory and Storage

1.2.1 Primary Storage (Memory)1.2.2 Secondary Storage 1.2.3 Units 1.2.4 Data Storage 1.2.5 Numbers 1.2.6 Characters 1.2.7 Images 1.2.8 Sound 1.2.9 Compression Module Review

1.3 Computer Networks, Connections and Protocols

1.3.1 Networks and Topologies 1.3.2 Roles of Computers in Network Types 1.3.3 Hardware for Local Area Networks (LANs)1.3.4 The Internet as a Collection of Networks 1.3.5 Star and Mesh Network Topologies 1.3.6 Wired and Wireless Networks, Protocols and Layers Module Review

1.4 Network Security

1.4.1 Threats To Computer Systems and Networks 1.4.2 Identifying and Preventing Vulnerabilities Module Review

1.5 Systems Software

1.5.1 Operating Systems 1.5.2 Utility Software Module Review

2. Computational Thinking, Algorithms and Programming

2.1.1 Computational Thinking 2.1.2 Designing, Creating and Refining Algorithms 2.1.3 Searching and Sorting Algorithms Module Review

Subjects1.2 Memory and Storage1.2.1 Primary Storage (Memory)

1.2.1 Primary Storage (Memory)

In this lesson, you will learn why computers need primary storage and how RAM, ROM, virtual memory and cache are used. You will compare the purposes and characteristics of RAM and ROM, understand how virtual memory supports RAM when memory is limited, and explain how cache helps the CPU access data and instructions quickly.

SummaryRevision

Topic 1

The Need for Primary Storage

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Topic 2

RAM and ROM

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Topic 3

Virtual Memory

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Topic 4

Cache

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Features

Explore how Knowness supports GCSE learning.

Embedded InteractionsFlashcards and exercises appear inside lessons at the moment they matter.Spaced RepetitionDue cards come back at the right time using memory science.Predicted GradesProgress signals build into a clearer view of where a student is heading.BattlesFast competitive revision against another learner or a practice opponent.Deck ManagerOrganise revision cards by subject, lesson, module, and due status.

Schools Parents Pricing