There are three essential types of software, with there own subsections:

1. Commercial software, acquired with a licence for one or more computers. This commonly include some form of support and regular updates to patch errors etc. Sometimes a new version of the software is offered at a reduced price as “update”. This type of software is usually very expensive and is often created to cover particular industrial aims. The big exception is the various sets of “office” software, which are created for use in the commercial environment, but can easily be used for various tasks at home.

The most common use in this category is, of course, text redaction. Most of the other traditional “office” applications, such as calculations and data bases are only of limited use in the domestic environment, although they will be used in some cases, especially now that the more computer-literate generation is growing.
2. Relieved; or “lite” versions of the commercial software. These are meant for small businesses and enterprises that do not need the complete capabilities of, for example, a 3-D modelling system, but must be able to view such documentation and prepare compatible drawings.

Again, the “office” environment was for many a long day not represented in this sector, but has not long ago started to be available. These will also come with a single or multiple, but limited licence and now mostly be registered with the producer.
3. Free or “open source” software. This is created for general distribution and has no special restrictions as to use, except that it may not be transformed in any way. Naturally, such software has its limitations, but may serve very acceptably for many purposes. Practically all types of software are to be found in this category. One notable application distributes the software to read its documents freely, but charges for the software to produce the documents. This policy is probably the motor behind its ride to a position as industry standard, since you can always be certain that he receiver can decipher whatever is sent, without long discussions about compatibility and versions.

It is obvious that, there can be no piracy of products that fall into the third category, except for modification of the code or reuse of the code for other purposes. Linux community has actively used this model to provide a number of successful and popular packages.

Taking all things into consideration, it can be said that now, free or “open source” software plays a main role in building the software industry and it has not problem of piracy, because does not limit the use of software.
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