1. The device someone uses to access a digital service. For example, a customer might use their mobile phone to view your website and another might use a desktop computer.  By being platform-independent, your website should work on both devices just as well. Read about responsive design.
  2. A system that offers a digital service.  This could be a way of selling online or a piece of online software or digital environment for creating and publishing content or making other systems such as websites, or other interfaces.  See also social media platform.