OS revision 0.0 / 5 ? ComputingComputer systemsGCSEOCR Created by: SGOzwaldCreated on: 07-02-18 14:41 What are the three layers of an operating system? 1. Applications software 2. Systems software, operating system, utilities. 3.Hardware, CPU, disks, peripherals 1 of 9 What does the kernel of an OS do? Deals with low level hardware operations 2 of 9 What allows communication between the user and the OS? The user interface 3 of 9 What interface allows for interaction with applications via the use of icons? Graphical user interface 4 of 9 What device uses graphical user interfaces primarily? Smartphones 5 of 9 Give an example of an operating system Android, Mac OS, Unix, Linux, Mac OS X, Windows 6 of 9 What is the most common operating system? Windows 7 of 9 What does DLL stand for? Dynamic Linked Library 8 of 9 Give a benefit of DLL Reduces the file size of applications 9 of 9
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