The operating system is system software that monitors, controls, and maintains the overall functions of the computer. It performs key functions such as process management, resource management, file management, communication management, security management, and memory management. Process management involves starting and stopping processes from boot up to shutdown. Resource management installs drivers and coordinates peripherals. File management handles file naming, organization, location, and attributes. Communication management facilitates interaction between users, applications, and hardware both internally and between networked computers. Security management provides virus protection, passwords, firewalls, and access controls.

1. Functions of Operating System Prof.S.G.Isave, Tilak College of Education, Pune-30 India

2. Operating System A part of system s/w. System s/w is a collection of programs which control the overall functions of computer. Operating system is a program which monitors, controls and maintains the computer.

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

4. Process Management. All process from start to shut down. Booting Open, Save, Install, Copy, Print, Send, etc.

5. Resource Management. Installing drivers required for input, output, memory, power, communication devices. Coordinating among peripherals.

6. File Management. Name. Folders. Location. Attributes – size, type, modified, protection, password etc.

7. Communication Management. User – Application S/W – Hardware. One computer to other computer in LAN/WAN. Command interpretation. Downloading-Uploading.

8. Memory Management. Primary RAM-ROM. Secondary – Hard Disc, CD, DVD, Pen etc.

9. Security Management. Virus management. Alert messages. Dialogue boxes. Firewall. Passwords./ Access protection.