GCSE AQA CS: 04 - Operating Systems

Software that acts as an interface between the applications and the hardware, the most important type of System Software

• Operating System
• Android
• iOS
• Windows
• Folders

Software that runs the computer system. Includes the OS and utilities but not applications

• System software
• Operating System
• Android
• iOS
• Windows

Operating system function that manages input and output between the computer and attached devices

• I/O Manager
• System software
• Operating System
• Android
• iOS

The function of the OS that manages the computer's memory, allocating it to processes as necessary

• Memory Manager
• I/O Manager
• System software
• Operating System
• Android

The OS function that manages the computer's processors by scheduling which processes are to be executed and in which order

• Process Manager
• Memory Manager
• I/O Manager
• System software
• Operating System

Function of an OS that allows users to interact with the computer, can just be a command line or could be graphical

• User interface
• Process Manager
• Memory Manager
• I/O Manager
• System software

Operating system function that saves and retrieves files on behalf of the applications. Usually provides a folder structure plus move, rename and search options

• File Manager
• User interface
• Process Manager
• Memory Manager
• I/O Manager

OS function that looks after the user programs, allocating processor time and memory to them as needed

• Application manager
• File Manager
• User interface
• Process Manager
• Memory Manager

The OS must reserve some of this, then copy a program from secondary storage into here so that it can start running

• RAM
• Application manager
• File Manager
• User interface
• Process Manager

A user profile that allows someone to sign in, this is created and managed by the User Manager function of the OS

• Account
• RAM
• Application manager
• File Manager
• User interface