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World wide web example: Google Chrome is a popular example of a web browser that is used to access the World Wide Web. With Google Chrome, users can search the internet, visit websites, and access online content.

File transfer protocol (FTP) example: FileZilla is an open-source FTP client that allows users to transfer files between their computer and a remote server. It supports various protocols such as FTP, SFTP, and FTPS, and can be used for uploading and downloading files, managing remote files, and more.

Real-time software example: Skype is a real-time software application that allows users to make voice and video calls, send instant messages, and share files with other Skype users. The software uses real-time communication technology to ensure that the call and message are delivered in real-time, allowing for a seamless and interactive experience.