Operating Systems Tasks 05/08/2019

Learning Objectives Discuss the purpose of operating systems. 05/08/2019

All Operating Systems: Control the hardware of the computer system: Memory management to control the way that primary memory is used Resource allocation / processor / printer time Access to peripheral devices via drivers. User interface / HCI: To provide human access and allows communication. Provide environment for application software to be executed and managed: i.e. installation to system, access to memory and allows software translation via compiler / interpreter / assembler. Provide utilities / library routines to carry out “housework” and common tasks e.g. File handling Defragmenting Formatting Virus protection Security backup procedures Privacy logons / passwords 05/08/2019

Plenary Describe the features which an operating system would be expected to provide in a single user computer system. 05/08/2019

All Operating Systems Provide: User interface To allow communication/type of interface File handling: To allow use of secondary storage Disk management defragmenting / formatting / storage Virus protection To protect files on secondary storage Security backup procedures 05/08/2019

All Operating Systems Provide: Privacy logons / passwords Access to peripheral devices via drivers / allowing hard copy Memory management To control the way that primary memory is used Manages application software / installation to system / access to memory Resource allocation /processor / printer time 05/08/2019