Edexcel GCSE Computer Science (1CP2) Exam Questions

• A Decodes instructions (1)
• The only correct answer is A. The correct answer is Decodes instructions.
• B is not correct because the arithmetic logic unit performs arithmetic operations
• C is not correct because main memory stores data and instructions
• D is not correct because registers temporarily store data being processed

• C 128 (1)
• The only correct answer is C. The correct answer is 128.
• A is not correct because 6 bits give only 64 different combinations
• B is not correct because 127 is the largest 7-bit value, not the number of characters that 7 bits can represent
• D is not correct because 256 characters need 8 bits, as used by 8-bit extended ASCII

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

• Keeps a record/index of where each file is stored on the disk (1) so the file can be found and opened later (1)
• Allocates space on the disk for each file (1) so files are stored without overwriting each other (1)
• Provides facilities to name file(s) and organise them into folder(s)/directories (1) so the user can find and manage their files (1)

Do not accept responses about process management, peripheral management or user management.

Do not accept bare statements of storing/saving, e.g. 'it stores files', 'it saves files' or 'it keeps files safe', with no development.

Do not award a mark for responses that repeat the question, e.g. 'it manages files', with no development.

Indicative content

Saving files

• When saving, the operating system lets the student choose the folder and the file name, so new work goes into the correct subject folder instead of the root.
• The operating system warns the student before a file with the same name is overwritten, so an earlier version of an essay is not lost by accident.
• The operating system writes the file into free space on the laptop and records where it is, so the student can open it again later.

Deleting files

• The operating system lets the student delete files that are no longer needed, which frees space so new photographs can be saved.
• Deleted files are usually moved to the recycle bin first, so a file removed by mistake can be restored.
• Emptying the recycle bin removes the data permanently and releases the space for other files.

Copying files

• The operating system lets the student copy files to a USB flash drive, so there is a second copy if the laptop is lost or damaged.
• Copying leaves the original file in place, so the student can carry on working on the laptop's copy.
• A whole folder can be copied in one action, including its subfolders, which is quicker than copying each file separately.

Levels

• Level 0 (0 marks): No rewardable content.
• Level 1 (1–2 marks): Basic, independent points are made, showing elements of understanding of key concepts/principles of computer science. (AO1) The discussion will contain basic information with little linkage between points made or application to the context. (AO2)
• Level 2 (3–4 marks): Demonstrates adequate understanding of key concepts/principles of computer science. (AO1) The discussion shows some linkages and lines of reasoning with some structure and application to the context. (AO2)
• Level 3 (5–6 marks): Demonstrates comprehensive understanding of key concepts/principles of computer science to support the discussion being presented. (AO1) The discussion is well developed, with sustained lines of reasoning that are coherent and logically structured, and which clearly apply to the context. (AO2)

Level 3 responses must cover saving, deleting and copying.

Do not accept answers about the processor or defragmentation as file management tasks.