........................and ........................ are two categories of software.

There are three main types of software and whatever the operating system of your computer software (GNU / Linux, Windows or Mac).
Owners and paid software Free software FOSS   1) Owners and paid software   These software produced by software companies are sold to the user when buying a computer, canned in specialty stores or on the Internet.
  But beware, what is sold, it is not the ownership of the user of the software, but only a right to use, this is a user license.
  Example: The Windows operating system is of this type.
  It is not possible to keep Windows for you when selling your old computer and it is not possible to sell separately from the machine.
  So first hurdle, the single use license, second, the software is copyrighted (= source code of the software is closed and protected), it is not possible for a user at any level of computer skills to change the software for their needs or add new possibilities.
  Only the company holding the license for the right property, hence the genesis of countless commercial pay update.
  The price of the licenses can be greatly increased by the license for one or more networked computers or not.
  The vast majority of software for Windows and Mac are of this type, they are rare against GNU / Linux.
  Shareware   Very often paid software are shareware.
These consist of an author to put into free circulation a full version of the software to allow the public to test without committing financially.
We can assimilate this distribution to a period of "free trial", in which the author offers you the opportunity to evaluate a software most obvious and the most effective way possible: by using it in your context of regular work.
  Freely downloadable shareware is not provided free of charge.
A moral contract binding indeed its author person installing the software.
It states that the user must shareware, whether to use the product and keep it on the same computer at the end of the evaluation period to pay the price of the license.
Clearly, once past the thirty test shareware days, it will go through the checkout if you wish to keep the usufruct.
Otherwise we will have to rely on his shelf software, ie uninstall, if for some reason it does not wish to acquire.
  However we note that shareware authors to remedy abuses, intentional or not, are also taking more care often disable certain features of their software to encourage the public to pay.
  The purpose of this application is to gently entice the customer by providing an overview of the capabilities of the software.
But just a glimpse as many of its features will be clamped.
  For example, the demo version of the popular Photoshop you can not print or save, or even to copy and paste.
It goes without saying that downloading a demo does not commit you to anything since you can not really use the software! 2) free software (freeware) These software produced by software companies or individual authors are free to the user, which can be purchased on the Internet for download or in CD-ROM Store in newsstands.
You can make copies and circulate them among users.
The source code can not be changed, which means that the software changes only if its author is changing.
  This type of software is often very effective because companies or authors who make aim to come forward as soon as possible to users, it is a "calling card".
  Gratuity is often transient,6 months to12 months in general, once the well established software, he became the owner and often paying in these new versions.
Sometimes some are equipped with spyware "cookies" called programs (spy = spy).
  Example: The office suite StarOffice5.2 is of this type.
    It is free and will remain but the improvements that competing office suite Microsoft Office2000 package are not free and it became necessary to buy Star Office6 to qualify.
Sun company is now trying to return on the resources deployed on free software and the release of certain parts of the source code of its office suite.
3) Free Software Free software belong to a very different approach, the goal of free software is the guarantee of freedom of the user in the use of software.
  These software produced by software companies or individual authors are almost all free to the user which can be purchased on the Internet for download or in CD-ROM Store in newsstands time.
  You can make copies and circulate them among users.
The great strength of free software is not free but its the fact that its source code is open and can be changed at any legality if you have the skills or know someone who can do it for you.
  It is then possible to share your changes / improvements to all users of the software, software development is a collaborative type and it often takes place via the Internet.
  Your software just keeps getting better!   So there are free software programs that are paid, free meaning that the source code is open and can be changed.
  This type of software is very powerful because the companies or authors who make aim to be known for, to be recognized by their fathers or simply wish to provide the largest number of users with a complete and well-constructed software adapted the needs of users.
The programming work is like a work of craftsman.
  Free software is funded by the payment of services around them, training, implementation and installation, open source is still protected by a special license, the GPL (English = General Public Licence), which states if you use the source code of free software, all or part, then your job is to provide a full and free version of the modified source code, so someone else has access to your software creation, it can again change in general to improve the performance of the software.
  Example: The GNU / Linux system.
  Born in1991 from the combination of GNU and Linux kernel, robust and powerful operating system runs at least8 million computers worldwide, and many programmers / users are using it and 'improving every day via the Internet.
      Recognized for its performance, the GNU / Linux team many corporate servers and starts for several years to equip school system.
When an update comes out on the Internet, it is now available to the greatest number and free!

What are the main categories of software?

What are the 2 main types of software give 2 examples each?