Operation Systems Flashcards
(6 cards)
Managing peripherals such as input and output devices
Communicates with and sends data output to a printer/monitor/other valid output
device
Communicates with and receives data input to a keyboard/mouse/other valid input
device.
Managing printing using spooling
Data is stored on a hard disk/in memory/stored in a queue
Document is printed when printer is free/in correct order
Benefit of spooling – user can carry on working/log off when waiting for job to print
Managing backing store
Ensures data is stored and can be retrieved corectly from any disk drive
Creates and maintains filing system such asfile allocation table (FAT) or new technology file systems (NTFS)
Organises files in a hierarchical directory structure.
Managing RAM
Ensures that programs/data do not corrupt each other
Ensures that all programs and data, including itself, are stored in correct memory
locations
Managing processes
Ensures that different processes can utilise the CPU and do not interfere with each other
or crash
On a multi-tasking O/S, ensures that all tasks appear to run simultaneously
Managing security
Allows creation and deletion of user accounts
Allows users to logon and change passwords