This is [NCSA Mosaic](https://en.wikipedia.org/wiki/Mosaic_(web_browser\)), one of the first graphical web browsers. This version has barely been modified since the last official release, version 2.7 beta 6, in 1996. You may also be interested in Mosaic-CK and VMS Mosaic, which have been substantially improved from the original.
If you're on Linux, your time machine is fueled up and ready to go! Follow the instructions below to build and run.
On Arch Linux, use the AUR package.
First, install these packages:
sudo apt-get install build-essential libmotif-dev libjpeg62-dev libpng12-dev x11proto-print-dev libxmu-headers libxpm-dev libxmu-dev
Next, build with: