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2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
2 operating systems and utility softwares
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2 operating systems and utility softwares

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  • 1. Operating Systems and utilitysoftwaresLecture 3Zikria 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 thehardware.• 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 powerswitch when it is turned off.– Warm boot Warm boot is pressing the restart buttonwhile 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 operatingsystem process scheduling algorithm and a networkrouting 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

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