The hacker ethos initially started—after the pranksterism—with the idea of open source software, or free, democratic software available to everyone at any time. The ethos never disappeared, of course, but in the last decade we have seen a resurgence in the free and open source software movement.
To a large extent, many of us are already acquainted with free and open source software. Many of us daily use Mozilla’s Firefox as their web browser, which is free and open source. Justin Frankel’s Gnutella peer-to-peer file-sharing network was much used to transfer files in LimeWire and Morpheus, amongst others, several years back.
Here are five great pieces of open source software.
1. OpenOffice
It might have been originally sponsored and owned by Sun Microsystems and distributed by Google, but OpenOffice is a great alternative to dropping $150 on Microsoft Office for your PC or Mac.
OpenOffice Writer is the equivalent of Microsoft Word, and will thus be familiar to Word users. It’s quite easy to use and can save and export in a number of formats, including as a Word .doc. Calc is essentially Excel and Impress is a Powerpoint/Apple Keynote module.
Since it is open source, users can add code to and distribute OpenOffice, and it’s available on Windows, Solaris, Linux and Macintosh operation systems.
2. Tor
As Tor’s website states:
Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis.
Tor relays are a network of computers—described as layers of an onion—that bounce information around the globe, shielding it from prying eyes.
And Tor works with many “existing applications, including web browsers, instant messaging clients, remote login, and other applications based on the TCP protocol.”
It is available on Windows, OSX and Linux.
3. Gimp
Gimp is a free and open source graphics editor and alternative to Adobe Photoshop, which runs users several hundred dollars (and into the thousands if one opts for the complete Adobe suite).
Its features are as numerous as any commercial photo editor, but as David Girard pointed out in an in-depth 2009 Ars Technica review, there are quirks that need to be hammered out in future versions. Version 2.6.11 was released in October 2010 (two years after Girard’s review), so hopefully some of the quirks have been worked out. And Gimp 2.7.3 is in preview release as of August 22nd.
And despite its development curve, Gimp is a cheap and powerful alternative to Adobe, and the developers have the ambition to make it even more powerful and user-friendly.
4. Bitcoin
Bitcoin is an open source digital currency that has received a fair amount of press in the last year. However, only the software is free, not the actual Bitcoins.
The mechanics of generating and acquiring Bitcoins might seem rather esoteric to some (watch Bitcoin’s video below for an explanation), and there are differing opinions on whether it would experience a deflationary spiral like the modern form of currencies; but theoretically, the idea of a digital currency not controlled by a state is much-desired by many.
Users have utilized Bitcoins to purchase books, video games and even to donate to WikiLeaks.
It’s available on Windows, Mac and Linux.
5. Mozilla Thunderbird
Mozilla Thunderbird is a free and open source email client that is an alternative to Gmail and Yahoo.
It looks quite a lot like Mozilla’s web browser Firefox and can handle multiple email accounts. Have a Yahoo email address that is used for personal correspondence as well as a work email? They both can be routed to Thunderbird. One can do this in Gmail, of course, but Mozillais an open source project and Google is a corporation.
Thunderbird contains nested folders that can be dragged and dropped with ease and the entire interface can be customized in a variety of ways. It’s also well-known for its security and spam-filtering features.
Another great feature in Thunderbird is that it allows for offline use—meaning, if no internet is available, a user can still access the contents of their email, which can’t be done on Google’s Gmail.
Source:http://www.deathandtaxesmag.com/135699/5-free-and-open-source-software-downloads/