Computer-science_A-level_Cie
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computers-and-components6 主题
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logic-gates-and-logic-circuits2 主题
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central-processing-unit-cpu-architecture6 主题
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assembly-language-4 主题
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bit-manipulation1 主题
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operating-systems3 主题
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language-translators2 主题
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data-security3 主题
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data-integrity1 主题
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ethics-and-ownership3 主题
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database-concepts3 主题
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database-management-systems-dbms-1 主题
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data-definition-language-ddl-and-data-manipulation-language-dml1 主题
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computational-thinking-skills1 主题
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algorithms14 主题
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data-types-and-records2 主题
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arrays2 主题
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files1 主题
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introduction-to-abstract-data-types-adt1 主题
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programming-basics1 主题
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constructs2 主题
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structured-programming1 主题
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program-development-life-cycle2 主题
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program-design-2 主题
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program-testing-and-maintenance3 主题
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user-defined-data-types1 主题
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file-organisation-and-access-3 主题
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floating-point-numbers-representation-and-manipulation3 主题
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protocols2 主题
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circuit-switching-packet-switching1 主题
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processors-parallel-processing-and-virtual-machines5 主题
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boolean-algebra-and-logic-circuits4 主题
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purposes-of-an-operating-system-os3 主题
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translation-software3 主题
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encryption-encryption-protocols-and-digital-certificates3 主题
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artificial-intelligence-ai4 主题
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recursion1 主题
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programming-paradigms4 主题
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object-oriented-programming7 主题
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file-processing-and-exception-handling2 主题
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data-representation5 主题
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multimedia3 主题
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compression2 主题
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networks-and-the-internet11 主题
legal-frameworks
Copyright
What is the Copyright Designs & Patents Act?
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This protects the intellectual property of an individual or a company
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It makes it illegal to copy, modify or distribute software or other intellectual property without the relevant permission
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If original work is original, copyright will be automatically applied and will not expire until 25 – 70 years from the death of the creator depending on the type of work
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If an individual believes that their work has been copied it is their responsibility to take action under the Copyright Designs and Patents Act
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Many sites online offer free downloads of copyrighted software/videos which prevents the intellectual copyright holder from earning their income on the work they have created
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E.g. If someone downloaded videos from Netflix and shared them with others, they would be breaching the act
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The act covers videos and audio where peer-to-peer streaming prevents a copyright owner from receiving an income
What is Prohibited Under the Copyright, Designs & Patents Act?
Primary breaches:
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Copying an original work
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Issuing the copy of the original work to the public
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Renting/lending the copy of the original work to the public
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Performing, showing or playing the original work in public
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Making an adaptation of the original work
Secondary breaches:
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Importing a copy of original work
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Possessing or dealing with a copy of the original work
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Providing means to make copies of the original work
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Permitting the use of premises for making copies of the original work
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Provision of props/equipment for a performance of a copy of the original work
Case Study
Case Study
Ed Sheeran Vs Marvin Gaye (External link to (opens in a new tab)bbc.co.uk (opens in a new tab)) (opens in a new tab)
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A case was brought against Ed Sheeran about his song ‘Thinking Out Loud’
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Ed Sheeran won his case which ruled that he did not copy ‘Let’s Get It On’ by Marvin Gaye whilst composing ‘Thinking Out Loud’
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The heirs of Gaye’s co-writer argued that Sheeran owed them money for infringement of copyright
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Sheeran said that if he was found guilty he would give up his music career
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The songs were said to have a similar chord progression but it was argued that these are the base of all modern songs and should be free to use
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Sheeran won a high court battle in London in 2022 over the copyright of his 2017 song ‘Shape of You’
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In 2015 Gaye’s heirs won a $5.3m judgement from a lawsuit claiming that Robin Thicke’s ‘Blurred Lines’ copied Gaye’s ‘Got to Give it Up’
Examiner Tips and Tricks
Examiner Tips and Tricks
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Make sure that you specify that the Copyright Design and Patents Act covers original work and is automatically applied from the creation of the work, then talk about what this means for the distribution of the work. For example:
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The work was protected by the Copyright Designs and Patents act when it was created. Therefore if anyone wishes to distribute it they have to gain the owner’s permission, if they just posted it to the internet then this would be in breach of the act.
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Also when referring to the name of the act, ensure you use its full name (The Copyright, Designs and Patents Act). It’s not called the Copyright Act. If you use a shortened version it may cost you marks in the exam
Software licensing
Commercial
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Users must pay for the software
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The developer earns an income from each purchase
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The software is copyrighted, so:
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Users cannot legally edit, copy, or resell the program
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The developer retains full control over the product
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Legal action can be taken against piracy or illegal distribution
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Shareware
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Software is free to try, often with time or feature limitations
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Users must pay to unlock the full version
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The software is copyrighted, so:
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Users cannot edit or redistribute the program legally
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The developer retains control
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This model encourages users to try before buying, increasing the chance of a sale
Freeware
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Software is free to use and download
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It is still copyrighted:
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Users cannot legally edit, copy, or sell the software
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The developer keeps ownership and control
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Although free, users must still follow the licence conditions
Open Source Initiative (OSI)
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The Open Source Initiative promotes software that is freely available and open to everyone
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Open source software comes with a licence that:
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Allows users to view, edit, and share the source code
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Encourages collaboration and improvement by the community
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Open source does not always mean free, some open-source software is paid, but users can still see and change the code
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Developers must still credit the original authors when modifying or sharing the software
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Example: Linux, Firefox, Apache Web Server
Free Software Foundation (FSF)
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The Free Software Foundation promotes freedom, not just free price
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It supports software that gives users four essential freedoms:
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Freedom to run the program for any purpose
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Freedom to study how the program works, and change it
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Freedom to redistribute copies
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Freedom to improve the program and share improvements
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This type of software is often referred to as free software or libre software, and it usually provides access to the source code
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The FSF supports user rights, transparency, and collaboration
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Example: GNU/Linux, LibreOffice, GIMP
|
Feature |
Commercial |
Shareware |
Freeware |
Open Source (OSI) |
Free Software (FSF) |
|---|---|---|---|---|---|
|
Cost to use |
Must be paid for |
Free trial, then pay for full version |
Free to use |
Often free, but not always |
Always free to use |
|
Access to source code |
No |
No |
No |
Yes |
Yes |
|
Can be edited or modified |
No – protected by copyright |
No – protected by copyright |
No – cannot edit or change |
Yes – with conditions under OSI licences |
Yes – full freedom to modify |
|
Redistribution allowed |
No |
No |
No |
Yes (under licence terms) |
Yes (freedom to share and improve) |
|
Copyrighted |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Developer control |
Developer retains full control |
Developer retains control |
Developer retains control |
Shared control between developers and users |
Users have full control |
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Focus |
Developer income and protection |
Try before you buy |
Free use only |
Collaboration and transparency |
Software freedom and user rights |
Worked Example
A game will be released under a licence.
Tick (3) one or more boxes in each row to identify the licence(s) each statement describes.[4]
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Statement |
Free Software Foundation |
Open Source Initiative |
Shareware |
Commercial Software |
|---|---|---|---|---|
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The user can edit the source code |
||||
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The user must always pay before being able to use the software |
||||
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The user can redistribute the software |
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The user always gets a trial period |
Answer
1 mark for each correct column
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Statement |
Free Software Foundation |
Open Source Initiative |
Shareware |
Commercial Software |
|---|---|---|---|---|
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The user can edit the source code |
✓ |
✓ |
||
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The user must always pay before being able to use the software |
✓ |
|||
|
The user can redistribute the software |
✓ |
✓ |
✓ |
|
|
The user always gets a trial period |
✓ |
Responses