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Edexcel GCSE Computer Science (1CP2) Exam Questions

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3 questions · 6 marks

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1Short recall2 marksUser Management Swap Remove

A computer can be shared by more than one user.

Define the term user management.

[2 marks]
Mark scheme

Award one mark for any of the following up to a maximum of two marks:

  • Manages user accounts/profiles/logins (1)
  • Authenticates users when they log in (through passwords/biometrics) (1)
  • Controls what each user is allowed to access (access rights/permissions) (1)
  • Sets which files/folders/resources a user can use (1)
  • Gives different levels of access to different users (e.g. administrator/standard user) (1)

Allow 'decides which users can use the computer' for the manage user accounts/logins mark.

Allow references to access to files/folders/resources for the access rights mark, as this is part of user management, not file management.

Do not accept 'manages users' on its own.

Do not accept 'controls user access' on its own, as it is unclear whether this means logging in or access rights.

Do not accept 'manages files' or 'manages peripherals' (these are other operating system functions).

Example answers and how they were marked
Full marks2/2

The operating system manages user accounts and logins, and sets access rights so each user can only use certain files and resources.

Why: Manages user accounts/logins (1) and controls what each user is allowed to access through access rights (1).

Some marks1/2

It manages the users who can log in to the computer.

Why: Manages user logins (1); no creditworthy point about access rights/permissions.

No marks0/2

It manages the files and peripherals for different users.

Why: File management and peripheral management are other operating system functions, so neither mark is earned.

2Describe2 marksMemory Management Swap Remove

A program is stored on secondary storage before it is run.

Describe how the operating system manages memory when a program is started.

[2 marks]
Mark scheme

Award up to two marks for a linked description such as:

  • The program (and its data) is copied/loaded from secondary storage into main memory/RAM (1) so that the CPU can fetch/execute its instructions (1)
  • An area of main memory is allocated/reserved for the program (1) that is large enough to hold the program and its data (1)
  • The operating system checks that there is enough free main memory (1) before the program can be started/loaded, otherwise it cannot run/an error is reported (1)
  • The operating system keeps a record of the memory addresses used by the program (1) so that its instructions and data can be found when it runs (1)

Allow 'loaded into RAM', 'stored in memory' and 'put into main memory' as equivalent to copied into main memory.

A single statement that the program is loaded/stored in main memory, with no linked development, can be given one mark only.

Do not accept descriptions of the CPU fetching/executing instructions that do not refer to the operating system loading or allocating memory.

Do not accept responses about virtual memory (moving processes to secondary storage) or about which process runs next on the CPU.

Do not accept the program being run from secondary storage/hard disk.

Example answers and how they were marked
Full marks2/2

The operating system copies the program and its data from secondary storage into main memory so that the CPU can fetch and execute its instructions.

Why: Copying the program and data into main memory (1) linked to the CPU fetching/executing instructions (1).

Some marks1/2

The operating system loads the program into main memory.

Why: The program is copied/loaded into main memory (1), but there is no linked development of how or what this leads to, so only one mark is given.

No marks0/2

The CPU fetches the program's instructions from main memory and executes them one at a time.

Why: This describes the fetch-decode-execute cycle, not the operating system loading or allocating memory, which is the Do not accept line; no creditworthy point is made.

3Explain2 marksSoftware Basics Swap Remove

An operating system manages the peripherals connected to a computer system.

Explain one reason why an operating system manages peripherals.

[2 marks]
Mark scheme

Award up to two marks for a linked explanation such as:

  • Device drivers/drivers are used/installed (1) so the operating system can control/communicate with a peripheral (1)
  • Data is transferred between the computer and a peripheral (1) so input can be read/output can be produced (1)
  • Interrupts from devices/peripherals are handled (1) so the processor can respond when a device needs attention/has finished (1)
  • Each peripheral is allocated to a process (1) so two processes do not try to use the same device at the same time (1)
  • Print jobs are held in a queue/spooled (1) so several jobs can be sent to one printer and printed one at a time (1)
  • Errors from a peripheral are handled/reported (1) so the program using the device does not crash (1)

For both marks, the expansion must follow/associate with the statement.

Allow other valid functions of peripheral management that are explained, e.g. sending data to a peripheral in the correct format, reporting a device error to the user.

Do not accept 'it manages peripherals' / 'it controls the hardware' on its own as it repeats the question.

Do not accept 'it installs the printer' / 'it connects the peripheral' on its own without saying what the operating system does with the device or why.

Do not accept cleaning/maintaining a peripheral; that is not peripheral management by the operating system.

Example answers and how they were marked
Full marks2/2

The operating system uses device drivers so that it can control the printer and understand the data it sends.

Why: Point (1) for using device drivers and linked reason (1) for controlling/communicating with a peripheral.

Some marks1/2

It transfers data to and from peripherals.

Why: Point (1) for transferring data between the computer and a peripheral; no linked reason, so the second mark is not awarded.

No marks0/2

It cleans the keyboard and mouse so they do not get dusty.

Why: Describes cleaning a peripheral, which the mark scheme says is not peripheral management by the operating system; no credit.

Questions by topic

2.1 Binary

Build a paper on this topic 58
Adding Binary Numbers 6 questions Binary and Hexadecimal Basics 10 questions Binary Shifts 6 questions Binary to Denary Conversion 6 questions Binary to Hexadecimal Conversion 6 questions Denary to Binary Conversion 6 questions Denary to Hexadecimal Conversion 6 questions Denary to Negative Binary Conversion 6 questions Hexadecimal to Binary Conversion 6 questions

2.2 Data representation

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Character Sets 18 questions Images 19 questions Sound 19 questions

2.3 Data storage and compression

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Compression 18 questions Units & Conversion 6 questions

3.1 Hardware

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Embedded Systems 17 questions Fetch Decode Execute Cycle 15 questions Primary Memory 15 questions Secondary Memory 15 questions Stored Program Computers 15 questions

3.2 Software

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File Management 18 questions Memory Management 16 questions Peripheral Management 11 questions Process Management 12 questions Purpose & Function of Operating Systems 17 questions Software Basics 13 questions User Management 18 questions Utility Software 19 questions

3.3 Programming languages

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Low and High Level Languages 19 questions Translators 18 questions

4.1 Networks

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Addressing 16 questions LANs & WANs 16 questions Network Speed 5 questions Packet Switching 16 questions Protocols & Layers 17 questions The Internet 16 questions Topologies 17 questions Wired Connections 17 questions Wireless Connections 18 questions

4.2 Network security

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Network Security Risks 18 questions Preventing Network Security Risks 18 questions

5.1 Environmental

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E-waste 17 questions Manufacturing Technology 19 questions

5.2 Ethical and legal

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Data Protection Act 17 questions Impact of AI 18 questions Intellectual Property 18 questions Software Licences 18 questions

5.3 Cybersecurity

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Malware 18 questions Social Engineering 18 questions

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