Functions of Operating System


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Functions of Operating System

  1. 1. Functions of Operating System Prof.S.G.Isave, Tilak College of Education, Pune-30 India
  2. 2. Operating System <ul><li>A part of system s/w. </li></ul><ul><li>System s/w is a collection of programs which control the overall functions of computer. </li></ul><ul><li>Operating system is a program which monitors, controls and maintains the computer. </li></ul>
  3. 3. Functions <ul><li>Process Management. </li></ul><ul><li>Resource Management. </li></ul><ul><li>File Management. </li></ul><ul><li>Communication Management. </li></ul><ul><li>Security Management. </li></ul><ul><li>Memory Management. </li></ul>
  4. 4. Process Management. <ul><li>All process from start to shut down. </li></ul><ul><li>Booting. </li></ul><ul><li>Open, Save, </li></ul><ul><li>Install, uninstall, </li></ul><ul><li>Copy, Delete, </li></ul><ul><li>Print, Scan, </li></ul><ul><li>Connect, Send, upload, download etc. </li></ul>
  5. 5. Resource Management. <ul><li>Installing drivers required for input, output, memory, power, communication devices. </li></ul><ul><li>Coordinating among peripherals. </li></ul><ul><li>Keyboard – monitor – mouse – printer – scanner – webcam – speaker etc. </li></ul>
  6. 6. File Management. <ul><li>Name. </li></ul><ul><li>Folders. </li></ul><ul><li>Location. </li></ul><ul><li>Attributes – size, type, modified, protection, password etc. </li></ul>
  7. 7. Communication Management. <ul><li>User – Application S/W – Hardware. </li></ul><ul><li>One computer to other computer in LAN/WAN. </li></ul><ul><li>Command interpretation. </li></ul><ul><li>Downloading-Uploading. </li></ul><ul><li>Showing messages to user including help. </li></ul>
  8. 8. Memory Management. <ul><li>Primary memory - RAM-ROM. </li></ul><ul><li>Secondary – Hard Disc, CD, DVD, Pen, Memory card etc. </li></ul><ul><li>Using appropriate memories to execute task. </li></ul><ul><li>Displaying memory status. </li></ul><ul><li>Managing disc maintenance i.e. disc cleanup, defragmentation, my document, Recycle bin etc. </li></ul>
  9. 9. Security Management. <ul><li>Virus management. </li></ul><ul><li>Alert messages. </li></ul><ul><li>Dialogue boxes. </li></ul><ul><li>Firewall setting. </li></ul><ul><li>Passwords. </li></ul>
  10. 10. OS <ul><li>OS takes care of all software and hardware devices to perform a task given by user. </li></ul><ul><li>It is a gateway of a computer. </li></ul>os USER SOFTWARE HARDWARE
  11. 11. Types of OS Single User Multi user
  12. 12. Some OS <ul><li>Windows </li></ul><ul><li>Linux </li></ul><ul><li>Opera </li></ul><ul><li>Google Chrome </li></ul><ul><li>Macintosh </li></ul><ul><li>MS DOS </li></ul><ul><li>Unix </li></ul><ul><li>Windows Server </li></ul>
  13. 14. Download, improve, use and feedback !