State three functions provided by an operating system. Function 1 Function 2 Function 3

Mark scheme

Marking points from the official mark scheme (May/June 2017). The mark or mark type is shown in brackets.

1. [3] Three from e.g. : ∞ (Provides an) interface ∞ Loads / opens / installs / closes software ∞ Manages the hardware // manages peripherals // spooling ∞ Manages the transfer of programs into and out of memory ∞ Divides processing time // processor management ∞ Manages file handling ∞ Manages error handling // manages interrupts ∞ Manages security software ∞ Manages utility software ∞ Manages user accounts ∞ Multitasking ∞ Multiprogramming // time slicing ∞ Batch processing