A list of all time best 20 free tech products which helped in shaping the future of technology, is put out by Jim Rapoza. In his words,
I’ve put together this list of 20 free products and technologies that proved to be innovative and that ended up changing the future of technology. Some were open source, some were freeware, and some started out free, flirted with commercial models and then returned to free status. But in all cases, users of these technologies got quite a bit of value from them. In fact, they got quite a bit more than what they paid for, even if they had paid a lot more than nothing.
The list, in brief, includes –
- Apache
- Bittorrent
- BSD
- DNS
- Doom Demo
- Instant Messaging
- Linux Kernel
- Napster
- NCSA Mosaic
- Nessus
- Perl
- PGP
- Sendmail
- USENET
- The Web
- Web Search Engines
- Wikis
- Winamp
- XML
- ZIP
I myself agree with this list but Nessus???