OPERATING SYSTEM

 Q1. What is the Operating system?

answer - An operating system is software that handles all the resources of a computer system, including hardware and software. It creates an environment for the user to run their programs efficiently and conveniently by simplifying the underlying hardware complexity and serving as a resource manager.

examples - 

                                                                               

Q2. Why do you need OS? (hence the function of OS)

answer - 1)  Manage Resources - 

Let's say we have two apps, App1 and App2. When we start App1, it takes control of the necessary hardware and starts working. However, if we try to run App2 while App1 is still running, we won't be able to access it as App1 is using up all the resources and the new app will freeze. This problem is solved by the operating system, which divides the resources based on each app's requirements.

                2) Manage Security-

Currently, the management of resources is in place, but what if App1 attempts to manipulate the data of App2? Such actions could alter the user's data, rendering it unreliable. Therefore, the Operating System (OS) is responsible for ensuring the security of data and the functionality of parallel-running programs.

                3) Make Software Lightweight-

When a system lacks its own operating system files, there is a need to create additional resources and security management files for individual applications. This can cause the size of applications to increase to more than 100%. However, an operating system resolves this issue, as it is a basic requirement that can be shared.