Cloud Software (cloud Sw) is the general name of internet-based computing services for computers and other devices that can be used at any time and provide computer resources shared among users. It is the general name of the system that users can access from anywhere with internet.
If we give an example in general, it can provide office 365 service via web browsers to edit and store Ms Office documents without installing any program on users' devices. Websites, Web-based applications are good examples of cloud computing.