You will need one of the following to read RSS feeds:

Modern web browser
Most modern browsers, including Firefox, Opera, Internet Explorer, Safari and Chrome automatically check for feeds when you visit a website, and display the orange RSS icon when they find one. Many of them allow you to add RSS feeds as a browser favourite or bookmark folder, automatically updating them with the latest content.

Web-based news reader
Web-based news readers check feeds and displays any new articles that have been added. They let you catch up with your RSS feed subscriptions from any computer, making this option useful if you want to access the feeds from multiple computers or devices.  

Desktop news reader
Some email software allows you to read RSS feeds. In addition, there is dedicated news reader software available that you can download and install on your computer.