Functions of Operating System

Prof.S.G.Isave,Prof.S.G.Isave,Tilak College of Education,Tilak College of Education,

Pune-30Pune-30India India

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Operating System

A part of system s/w.A part of system s/w. System s/w is a collection of System s/w is a collection of

programs which control the overall programs which control the overall functions of computer.functions of computer.

Operating system is a program Operating system is a program which monitors, controls and which monitors, controls and maintains the computer. maintains the computer.

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Functions

Process Management.Process Management. Resource Management.Resource Management. File Management.File Management. Communication Management.Communication Management. Security Management.Security Management. Memory Management.Memory Management.

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Process Management.

All process from start to shut down.All process from start to shut down. Booting.Booting. Open, Save,Open, Save, Install, uninstall,Install, uninstall, Copy, Delete,Copy, Delete, Print, Scan, Print, Scan, Connect, Send, upload, download etc.Connect, Send, upload, download etc.

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Resource Management.

Installing drivers required for input, Installing drivers required for input, output, memory, power, output, memory, power, communication devices.communication devices.

Coordinating among peripherals.Coordinating among peripherals. Keyboard – monitor – mouse – Keyboard – monitor – mouse –

printer – scanner – webcam – printer – scanner – webcam – speaker etc. speaker etc.

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File Management.

Name.Name. Folders.Folders. Location.Location. Attributes – size, type, modified, Attributes – size, type, modified,

protection, password etc.protection, password etc.

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Communication Management. User – Application S/W – Hardware.User – Application S/W – Hardware. One computer to other computer One computer to other computer

in LAN/WAN.in LAN/WAN. Command interpretation.Command interpretation. Downloading-Uploading.Downloading-Uploading. Showing messages to user Showing messages to user

including help.including help.

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Memory Management.

Primary memory - RAM-ROM.Primary memory - RAM-ROM. Secondary – Hard Disc, CD, DVD, Pen, Secondary – Hard Disc, CD, DVD, Pen,

Memory card etc.Memory card etc. Using appropriate memories to execute Using appropriate memories to execute

task. task. Displaying memory status.Displaying memory status. Managing disc maintenance i.e. disc Managing disc maintenance i.e. disc

cleanup, defragmentation, my document, cleanup, defragmentation, my document, Recycle bin etc. Recycle bin etc.

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Security Management.

Virus management.Virus management. Alert messages.Alert messages. Dialogue boxes.Dialogue boxes. Firewall setting.Firewall setting. Passwords.Passwords.

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OS

OS takes care of OS takes care of all software and all software and hardware devices hardware devices to perform a task to perform a task given by user.given by user.

It is a gateway of It is a gateway of a computer.a computer.

USER

SOFTWARE

HARDWARE

os

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Types of OS

Single User Multi user

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Some OS

WindowsWindows LinuxLinux OperaOpera Google ChromeGoogle Chrome MacintoshMacintosh MS DOSMS DOS Unix Unix Windows Server Windows Server

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