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Best selling OCR AS and A Level Computer Science notes
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Unit 1.1 Computing A-Level OCR Notes
- Class notes • 22 pages • 2023 Popular
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Simple and easy to follow notes, with diagrams and key word highlighted. 
 
Information gathered from various sources, sticking to the OCR A-Level computing spec to deliver highly accurate and relevant information in a consice yet detailed manner. 
 
Completed all of the spec points of 1.1
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Databases - Types, Keys and Keywords
- Summary • 1 pages • 2020 Popular
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A look at the common databases used in computing including relational and flat file databases. Also includes an overview of the different keys used in databases.
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Arrays, Tuples and Records
- Summary • 1 pages • 2020 Popular
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A look at Arrays, Tuples and Records - key data structures in computer science. This takes a look at their application and use.
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Factors affecting the performance of a CPU
- Summary • 1 pages • 2020 Popular
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In this summary, we take a look at the factors affecting the performance of a CPU, including year 1 and year 2 content, ranging from clock speed; number of cores to pipelining)
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1.3 Exchanging Data - How data is exchanged between systems
- Summary • 6 pages • 2020 Popular
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This is the third major part of the A level computer science course
It is a comprehensive summary of the book. It includes only what is required by the specification, in a short, comprehensive and easy to remember format, with diagrams and pictures to aid the explanation of concepts.

These notes include:
1.3.1 Compression encryption and hashing
1.3.2 Databases
1.3.3 Networks
1.3.4 Web technologies
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Chapter 15 to 20. OCR A level notes.
- Summary • 2 pages • 2020 Popular
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Notes from the Computer Science New Course OCR textbook and extra information from other places(eg. zigzag, school ppt) where relevant for chapters 15,16,17,18,19,20. Very clear and organized by chapter number. These notes got me an A (highest grade possible)! So they are tried and well tested :)
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Stacks and Queues
- Summary • 1 pages • 2020 Popular
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A look at two key data structures - Queues and Stacks. This includes the different applications of Queues (I.e. circular Queues) and how to implement them with different functions
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Notes from the OCR textbook and extra information from other places(eg. zizag) where relevant for chapters 7 to 10. Seven in-depth pages in font 10 Arial. These notes got me an A! So they are tried and well tested :)
- Study guide • 7 pages • 2020 Popular
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- $5.22
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Notes from the Computer Science New Course OCR textbook and extra information from other places(eg. zigzag, school ppt) where relevant for chapters 7 to 10. Seven in-depth pages in font 10 Arial. Very clear and organized by chapter number. Please note these notes are in-depth and are of good quality.

These notes got me an A (highest grade possible)! So they are tried and well tested :)
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OCR A-Level Computer Science Knowledge Organiser
- Summary • 10 pages • 2022 Popular
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- $16.34
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The aim of the Cambridge International AS and A Level Computer Science syllabus is to encourage learners to develop an understanding of the fundamental principles of computer science and how computer programs work in a range of contexts. Learners will study topics including information representation, communication and Internet technologies, hardware, software development, and relational database modelling. As they progress, learners will develop their computational thinking and use problem-solv...
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Structure of the CPU
- Summary • 1 pages • 2020 Popular
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We look at the make up of a CPU with the different registers, buses and memory to discover their functions within computer. Their is also a section on GPUs as well as the fetch-decode-execute cycle
Newest OCR AS and A Level Computer Science summaries
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Unit 1.1 Computing A-Level OCR Notes
- Class notes • 22 pages • 2023 New
-
- $4.30
- 1x sold
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Simple and easy to follow notes, with diagrams and key word highlighted. 
 
Information gathered from various sources, sticking to the OCR A-Level computing spec to deliver highly accurate and relevant information in a consice yet detailed manner. 
 
Completed all of the spec points of 1.1
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Unit 1.2.1 to 1.2.2 Computing OCR A-Level Notes
- Class notes • 23 pages • 2023 New
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- $10.32
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Simple and easy to follow notes, with diagrams and key words highlighted. Information gathered from various sources, sticking to the OCR A-Level computing spec to deliver highly accurate and relevant information in a concise yet detailed manner.
-
OCR A-Level Computer Science Knowledge Organiser
- Summary • 10 pages • 2022 New
-
- $16.34
- + learn more
The aim of the Cambridge International AS and A Level Computer Science syllabus is to encourage learners to develop an understanding of the fundamental principles of computer science and how computer programs work in a range of contexts. Learners will study topics including information representation, communication and Internet technologies, hardware, software development, and relational database modelling. As they progress, learners will develop their computational thinking and use problem-solv...
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Terminology for Computer Science, partially covered.
- Class notes • 12 pages • 2023 New
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- $11.76
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Terminology for Computer Science, partially covered.
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Functions of an operating system
- Summary • 1 pages • 2023 New
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- $7.18
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A cheat sheet for chapter 7 of the PG Online textbook chapter 7 that summarises the functions of the operating system.
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Computation thinking Homework Thinking ahead 2 answers
- Other • 2 pages • 2021 New
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- $8.75
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OCR A LEVEL COMPUTER SCIENCE Computational thinking Homework Thinking ahead 2 answers.
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1.3 Exchanging Data - How data is exchanged between systems
- Summary • 6 pages • 2020 New
-
- $9.80
- + learn more
This is the third major part of the A level computer science course
It is a comprehensive summary of the book. It includes only what is required by the specification, in a short, comprehensive and easy to remember format, with diagrams and pictures to aid the explanation of concepts.

These notes include:
1.3.1 Compression encryption and hashing
1.3.2 Databases
1.3.3 Networks
1.3.4 Web technologies
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1.1 The Characteristics of Contemporary Processors, Input, Output and Storage devices.
- Summary • 5 pages • 2020 New
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- $9.80
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This is the first major section in the A level computer science course
It is a comprehensive summary of the book. It includes only what is required by the specification, in a short, comprehensive and easy to remember format, with diagrams and pictures to aid the explanation of concepts.

These notes include:
1.1.1 Structure and function of the processor
1.1.2 Types of processor 
1.1.3 Input, output, and storage
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Factors affecting the performance of a CPU
- Summary • 1 pages • 2020 New
-
- $3.91
- + learn more
In this summary, we take a look at the factors affecting the performance of a CPU, including year 1 and year 2 content, ranging from clock speed; number of cores to pipelining)
-
Structure of the CPU
- Summary • 1 pages • 2020 New
-
- $3.91
- + learn more
We look at the make up of a CPU with the different registers, buses and memory to discover their functions within computer. Their is also a section on GPUs as well as the fetch-decode-execute cycle
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