2 operating systems and utility softwares
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This document discusses operating systems and utility software. It defines system software as the interface between users and hardware. There are two types: operating systems and utility software. The operating system manages programs, memory, tasks, devices, networks and performance. Utility programs are included in the basic OS or as standalone programs. The document also outlines different types of operating systems including standalone, network, embedded, device-dependent, and device-independent operating systems.
2 operating systems and utility softwares
- 1. Operating Systems and utility softwares Lecture 3 Zikria Mian
- 2. • What is system software • Types of system software • Operating system functions • What are utility programs and their types • Types of operating systems • Creating and managing folders on Z drive
- 3. System software • An interface between the user and the hardware. • Two types – Operating system – Utility softwares • Included with operating system • Stand alone
- 4. Operating System functions • Start computer – Cold boot and a cold boot is pressing the power switch when it is turned off. – Warm boot Warm boot is pressing the restart button while the computer is on • Managing programs – Single user / single tasking – Single user / multi tasking – Multi user / multi tasking – Multiprocessing • Managing memory – RAM – Hard disk – Paging and thrashing
- 5. Operating System functions (continued) • Coordinating tasks – FCFS First come, first served (FCFS) is an operating system process scheduling algorithm and a network routing management ... – FIFO/LIFO – High / Low Priority tasks • Configuring devices – Device driver – Plug and play – Automatic update • Monitoring performance • Files and data management • Network administration and security
- 6. Utility Programs • Usually included in basic OS – File Manager – Image viewer – Disk defragmenter etc • Stand alone – Partition magic – Antivirus programs – File compression / conversion – Web filters
- 7. Types of Operating Systems • Stand alone – Windows – Macintosh – Linux • Network – Windows server 2008 – Solaris – Netware • Embedded – Windows Mobile – Google Android – Blackberry
- 8. Types of OS (continued) • Device-dependent • Device-independent Google Android
- 9. Summary • System software • Operating system functions – Managing programs, memory, tasks, devices, networks, performance etc. • Utility programs • Types of Operating systems
- 10. Summary • System software • Operating system functions – Managing programs, memory, tasks, devices, networks, performance etc. • Utility programs • Types of Operating systems