System software Flashcards

OCR GCSE J277 Computer Science specification

System software

Software designed to run and maintain a computer system, including the operating system and utility programs.

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Terms in this set (19)

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System software

Software designed to run and maintain a computer system, including the operating system and utility programs.

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Operating system (OS)

System software that manages hardware and software resources and provides services for application software.

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Functions of an operating system

Includes managing hardware, providing a user interface, managing applications, and handling security.

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User interface (UI)

The part of the operating system that allows users to interact with the computer, such as graphical user interfaces (GUIs) or command-line interfaces (CLIs).

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Memory management

The process of managing the computer's memory, including allocating and freeing up memory for applications.

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Peripheral management

The control of external devices like printers, keyboards, and monitors by the operating system.

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File management

The organisation, storage, retrieval, and manipulation of data files by the operating system.

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User management

The operating system's ability to manage user accounts, including login credentials and permissions.

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Utility software

System software designed to help maintain or optimise the computer system, such as antivirus software or disk defragmenters.

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Examples of utility software

Includes encryption software, defragmentation tools, backup software, and compression tools.

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Encryption software

Utility software that secures data by converting it into a coded format to prevent unauthorised access.

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Defragmentation software

Utility software that reorganises fragmented data on a hard drive to improve performance.

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Backup software

Utility software that creates copies of data to prevent loss in case of system failure.

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Compression software

Utility software that reduces the size of files to save storage space or make them easier to transfer.

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Command-line interface (CLI)

A text-based user interface where users type commands to interact with the operating system.

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Graphical user interface (GUI)

A visual user interface that uses windows, icons, and menus to allow users to interact with the computer.

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Multitasking in operating systems

The ability of an operating system to run multiple applications simultaneously by sharing CPU time.

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Role of drivers

Software that allows the operating system to communicate with hardware devices, such as printers or graphics cards.

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Open source operating systems

Operating systems where the source code is freely available for modification, such as Linux.

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