Last Updated on March 12, 2025 by Dave Farquhar
The title dates itself. On January 23, 1993, more people would have caught the reference. January 23, 1993 was the day the first cross-platform Web browser emerged from the NCSA, the National Center for Supercomputing Applications, a computing research partnership at the University of Illinois Urbana-Champaign, in the middle of the cornfields of Illinois.
How NCSA Mosaic gave the web a jump start
The Internet as we know it today is largely based on the World Wide Web, which was Tim Berners-Lee’s invention. Berners-Lee invented HTML, the web browser, and the web server. But his applications only ran on NeXT computers. The Web needed to be cross-platform to really take off.
To solve the end-user side of the problem, NCSA developed a pioneering web browser called Mosaic.
NCSA Mosaic was first released for Unix platforms January 23, 1993. Ports to Windows and Mac OS followed in September, and an Amiga port arrived in October. I would have been all over that Amiga port, if only I had known it existed. The first few times I used the Web, I used Mosaic. Like most tech-savvy students in 1993, I got Internet access as soon as I could and was using e-mail and FTP. Then I heard you could go to the computer labs where they had Unix workstations and use the Internet in a graphical way. That was Mosaic. There was almost always a line, so none of us got to use it a lot, but those of us who braved the lines knew this was the future.
The Innovators’ web browser
Mosaic was important because it made the Internet so much more visual, and it ran on the computers college students had access to, starting in the Unix computer labs in early 1993, and humble PCs or Macs and even Amigas in the fall of 1993.
Students who saw the Web in 1993 wanted to build their own web pages. The joke in the mid 90s was that there were only 12 pages on the Web and everything else was just collections of links that lead directly or indirectly back to those 12. But the people building those collections of links were learning their way around this brave new world. And after a few iterations of developing a few more skills and using them to build bigger things, the dotcom bubble was on. And with the dotcom bubble came the early growth of the Internet.
NCSA Mosaic wasn’t the browser for the long haul. But it was good enough to be a catalyst, to stand in until the other browsers were ready while the Web’s innovators built the first web pages.
The phases of the Web’s adoption
When a new technology or product category hits the market, there are five phases of consumer: Innovators, early adopters, the early majority, the late majority, and laggards. The early majority and late majority are each about 34% of the population. The innovators and early adopters are about 8% each, and the laggards are about 16%.
The innovators are in it just to be part of something new. They don’t care how imperfect or unfinished it is. From 1990 to 1993, the innovators saw the Web, saw what it could be, and started building things to get it there. And their excitement helped to sell the idea. As the Web gained a bit of maturity, early adopters started coming in and building stuff too. If I’m honest, I was a year too young to be in on the innovation stage. I’d like to think if I’d been on a college campus in February 1993, I would have been learning HTML and building a web page then.
But I was there in plenty of time for the early adopter phase, which I would estimate started in early 1994 and may have lasted as long as 1998. By 1999, the Internet had definitely become mainstream, with the early majority getting Internet access at home, and the web and web browsers were user friendly enough to spur widespread adoption.
NCSA Mosaic was out of the picture by then. Its final release was version 3, released January 7, 1997. By then, Netscape and Internet Explorer had both eclipsed Mosaic. But without Mosaic setting the stage, it’s entirely possible neither of those browsers would have come into being in the first place.
David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.