Flashcards

Operating system functions: interface, multitasking and security

12ewailes Inglês 4 flashcards

Flashcards do conjunto (4)

1User interface-Communicating with the user
-Allows user to issue commands
--How users interact with computer hardware
-Graphical (GUI) or Command line
2Multi-tasking-Several programs in memory at one time
-With background tasks for general management
-Processor- one core + one instruction at a time
-OS manages running programs and ensures each one gets enough processing time
3Security-OS allows authentication of users
-IDs and passwords normally
-File privileges
-Who can read and write shared files
4Peripheral Management-Peripheral- hardware components that are not part of the CPU
-OS manages these devices
-