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Edexcel GCSE Computer Science (1CP2) Exam Questions

Build a practice paper from 693 exam-style questions, each with its mark scheme and example answers. Print it, or answer it on paper and then open the mark schemes. Or browse the questions by topic.

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3 questions · 6 marks

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1Short recall2 marksPurpose & Function of Operating Systems Swap Remove

An operating system manages the peripheral devices connected to a computer.

State two tasks carried out by the peripheral management function of an operating system.

[2 marks]
Mark scheme

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

  • Receives input from/sends output to peripheral devices (1)
  • Communicates with/controls a peripheral using its device driver, including installing the driver for a new device (1)
  • Manages the print queue/buffer so that print jobs are sent to the printer in turn (1)
  • Reports the status of a device/a device error to the user, e.g. out of paper (1)

Allow answers that name a specific peripheral, as long as they also say what the operating system does with it, e.g. 'it controls the printer using its driver'.

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

Do not accept 'managing files' or 'managing users' (file management and user management are other functions of an operating system).

Example answers and how they were marked
Full marks2/2

It uses device drivers to control each peripheral and it reports a printer error such as out of paper to the user.

Why: Communicating with a peripheral using its device driver (1) and reporting a device error to the user (1) are two different peripheral management tasks.

Some marks1/2

It manages the print queue.

Why: Managing the print queue is one named peripheral management task (1); no second task is given.

No marks0/2

It manages peripherals and it manages users.

Why: 'Manages peripherals' repeats the question and earns nothing; 'manages users' is user management, not peripheral management.

2Describe2 marksUser Management Swap Remove

A computer can be used by more than one person.

Describe how an operating system uses access rights to protect each user's files.

[2 marks]
Mark scheme

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

  • Each user/file is given permissions/access rights (1) so other users cannot read/write/open/change that user's files (1)
  • A user may be given read-only/read access to a file (1) so they cannot edit/delete/change it (1)
  • Each file is given permissions/access rights for different users (1) so the operating system allows/refuses access depending on which user is logged in (1)
  • The operating system checks a user's permissions/access rights when a file is opened (1) so a user with read-only/read access cannot save/delete changes (1)

Do not accept responses about asking for a password/username, as this checks who the user is, not what they are allowed to do.

Do not accept 'files are protected/safe' or 'access rights protect files' without saying how access is limited (e.g. read-only access, permissions for different users).

Example answers and how they were marked
Full marks2/2

A user can be given read-only access to a file, so they can open it but cannot edit or delete it.

Why: Read-only/read access point (1) and linked development that the user cannot edit/delete the file (1).

Some marks1/2

A user can be given read-only access to a file.

Why: Read-only/read access point (1); no development saying what this prevents, such as being unable to edit/delete the file (0).

No marks0/2

The operating system asks for the password again before the file opens.

Why: Describes asking for a password, which checks who the user is, not access rights to the file; no creditworthy point.

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.

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