whihc of the following is an example of software

transistor
OS
CPU
Mouse

OS

Among the options provided, the correct example of software is the operating system (OS).

The example of software from the options mentioned is the Operating System (OS). To identify software among the given options, we need to understand what each option represents.

1. Transistor: A transistor is an electronic component used to amplify or switch signals in an electrical circuit. It is a hardware component, not software.

2. OS (Operating System): An operating system is a software that manages computer hardware and software resources. It provides a user interface and enables users to interact with their computer and run other software applications. Therefore, the OS is an example of software.

3. CPU (Central Processing Unit): The CPU is the primary component of a computer that performs most of the processing inside a computer system. It is a hardware component and not software.

4. Mouse: A mouse is an input device used to interact with a computer. It is also a hardware component, not software.

So, among the given options, the Operating System (OS) is an example of software.