What was the first web browser?
Tim Berners-Lee who invented the World Wide Web in 1989 and first deployed a working system in 1990, did so by writing a web browser for the NeXTStep operating system. The original "WorldWideWeb" browser program had a graphical user interface and so on and is definitely recognizable to most people as a web browser. However, WorldWideWeb did not support graphics embedded in pages when it was first released. You can learn more about the original "WorldWideWeb" browser from Tim Berners-Lee himself.
The first web browser to become truly popular and capture the imagination of the public was NCSA Mosaic. Developed by Marc Andreessen, Jamie Zawinski and others who later went on to create the Netscape browser, NCSA Mosaic was the first to be available for Microsoft Windows, the Macintosh, and the Unix X Window System, which made it possible to bring the web to the average user. The first version appeared in March 1993. The "inline images," such as the boutell.com logo at the top of this page, that are an integral part of almost every web page today were introduced by NCSA Mosaic 2.0, in January of 1994. Mosaic 2.0 also introduced forms.