Digital refers to all business activities and communications which utilize the Internet to create, distribute, or amplify a message or to generate sales.
Digital, in today’s landscape, casts a wide net, referring to your company’s website, blog, online store, and more. Digital reaches prospects, customers, and stakeholders in a convenient, accessible location — online — making digital a foundational channel of communications for your business.
With the ubiquity of digital marketing and advertising comes a responsibility for your business. You have to look good online, and you need to make everything available for your customers where they want it, when they want it across a variety of platforms, including computers, phones, and tablets. Today, most businesses cannot survive without a strong digital presence. Even fewer can thrive.
References
https://en.wikipedia.org/wiki/Internet