Final answer:
Mosaic was revolutionary for its time because it could display both text and images, which set a new standard for web browsers. Marc Andreessen played a key role in its development, and later in the launch of Netscape Navigator. This marked the beginning of a new era in web browsing, despite Netscape's eventual decline.
Step-by-step explanation:
Mosaic was different from earlier browsers in that it could display text and images. This was a significant advancement as it allowed users to experience a more dynamic and visually engaging web. Developed by Marc Andreessen in 1993, Mosaic's capabilities set the stage for future browsers, offering a glimpse into the potential of the World Wide Web. Andreessen later co-founded Netscape, which continued to innovate in web browsing with the release of Netscape Navigator.
However, Netscape Navigator eventually lost market dominance due to Microsoft bundling Internet Explorer with Windows 95, leading to an antitrust case and the eventual acquisition of Netscape by AOL in 1999.