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Flashcards do conjunto (9)
- 1OPERATING SYSTEMAn operating system is a piece of software that controls the operation of the systems hardware and the running of other software.
- 2WHAT CAN IT DO?•Memory management
•File management
•Security
•Provision of an Interface
•Input output
•Error reporting
•Utility software management. - 3MEMORY MANAGEMENTControls the system's RAM, controlling which locations in RAM programs are loaded into.
The operating system handles the computer’s memory and the sharing of the central processing unit (CPU). Its job is to make sure that each application gets the correct and adequate resources.
It is also responsible for maximising the whole system. - 4FILE MANAGEMENTcontrolls where and how files are stored
The operating system handles the organisation and tracking of files and directories (folders). It also saves or retrieves these from a computer disk.
•allows the user to create files and directories
•allows the user to save files to a backing store
•allows the user to rename, copy, move and delete files
•keeps track of where files are located on the hard drive - 5SECURITY•controls the access of programs, processes and users to the computer resources
•ensures that all access to system resources is controlled
•ensures that external I/O devices are protected from invalid access attempts
•Provides authentication features for each user by means of a password. - 6INTERACTIONallows the user to interact with the
- 7INPUT/OUTPUT.acts as the I/O comptroller by keeping track of all I/O devices
•Decides which process gets the device, when and for how much time. - 8ERROR REPORTING•monitors the system for any errors that occur
•Takes appropriate actions to ensure correct operations.
•Closes the system if errors are terminal. - 9UTILITY SOFTWARE MANAGEMENTI.E Virus scanner and system monitor.
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- FlashCards sobre Sem título, criado por Tyler Lane em 16-05-2017.
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- Tyler Lane
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