Edexcel GCSE Computer Science (1CP2) Exam Questions

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

• Updates/changes the location/path stored for the file (1) so the file can be found in its new folder/location (1)
• Removes the file's entry/reference from the old folder (1) so the file no longer appears/is listed there (1)
• Adds/creates an entry/reference for the file in the new folder (1) so the file appears/is listed in its new location (1)
• Updates the folder/directory listing/structure (1) to show the file's new location/path (1)

Do not accept descriptions of copying the file or leaving a duplicate in the old folder.

Do not accept deleting and recreating the file, or moving the file's data to a different physical location on the disk; the marks are for updating the folder/directory structure.

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

• Gives each process a share/a small amount (time slice) of the CPU time (1) so that several processes can run and appear to run at the same time (1)
• Decides which process will use the CPU next, e.g. by priority (1) so that the most important process is run first (1)
• Keeps track of the state of each process (ready/running/blocked) (1) so that each process is moved to the state it needs to be in (1)
• Moves a process that is waiting for input/a resource (e.g. a printer) to blocked (1) so that another process can use the CPU (1)

Do not award a mark for stating only that the operating system runs/controls the programs.

Do not award a mark for describing multitasking in general, e.g. 'the operating system runs more than one program at once', without saying how the operating system manages the processes.

Do not accept responses about memory management (e.g. loading a program into RAM), the user interface or user management.

Accept 'processor' for CPU.

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).