AS / A Level Computer Science
AS CS 5 - System Software
AS CS 5.1 Operating Systems
Candidates should be able to:
Explain why a computer system requires an Operating System (OS)
Explain the key management tasks carried out by the Operating System
Notes and guidance
Show understanding of the need for typical utility software provided with an Operating System
Show understanding of program librariesÂ
Notes and guidance
Including memory management, file management, security management, hardware management (input / output / peripherals), process management
Including disk formatter, virus checker, defragmentation software, disk contents analysis/ disk repair software, file compression, back-up software
Including:
software under development is often constructed using existing code from program libraries
the benefits to the developer of software constructed using library files, including Dynamic Link Library (DLL) files