Title, Appunti di informatica libera. Author, Daniele Giacomini. Publisher, Systems Comunicazioni, ISBN, , Length, Appunti di informatica libera by Daniele Giacomini at – ISBN – ISBN – Systems Comunicazioni – Softcover. which makes available automatically a swap file for the virtual memory. Appunti di informatica libera Copyright © Daniele Giacomini.

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Appunti di informatica libera

Finally, ZipSlack can be used also when there is a reduced amount of central memory, by activating the virtual memory with the support of a file. You need to have a program to extract ZIP archives under Dos.

The original Artistic license is by most people considered a bad formulated license, too vague and ei not good for preserving software freedom. With the shareware word we refer to proprietary software that you are required to buy after a trial period even if it can be freely distributed.

Free Book: appunti di informatica libera

Usually, to deal with it it is necessary to obtain a special permission, that most of the time limits its usage to just one computer or a well-defined environment. EXE and similar disks cannot use its full performance potential;, just to avoid security problems.

It is possible to install addtional software, by using the normal packages of the Slackware distribution. One of the basic elements of free software is the possibility to sell original or modified copies to make profit out of it. To this extent someone said: However there are netconfig to configure the network interface and pppconfig to configure a PPP connection over a switched line.

Freedom 1, freedom to study and learn how the program operates and the ability to modify it to best suit your own needs in such a case source code is needed. Since only the executable part is needed to make software operate, software copyright preservation laws that exist in many countries do permit distribution of the executable code alone, allowing the copyright owner to keep the source code hidden.


This means some copies or variations of this software are no more free. Meant this way the “free” prefix is only used to spot that there’s no price set on it, but is fairly different from freedom, which asks for more requisites.

Unfortunately, a neat definition for this license does not exist and people tend to simply name them BSD licenses, feeding confusion that should be better to avoid. Also this time, it is worth listing some definitions for non-free software.

ZIP [ Enter ]. The result should be a C: To put a remedy in the holes of the Artistic license, a new revision called Clarified Artistic License was developed. To better understand or mess up things as well, we can add that both non-free and non-commercial software do exist.

Usually, the contract that rules the use of software is the license ; is always important to know deeply the terms of the license agreement for the software you intend to deal with.

The latter is the study of the executable code geared towards learning how code operates. Trying to avoid this little disadvantage different modified versions of this license have been created. Software is not free when all the minimal requisites to classify it as such are not satisfied. Semi-free software is software that allow usage, copy, modification and distribution even after a modification for whatever reason except to make profit out of it.

Some people prefer to use the “Open Source” tag to identify free software in the terms we have described above. The reason is that this kind of installation is not very efficient and presents risks: It is worth pointing out here some licenses that are not born from the Free Software Foundation. The freeware word is not tied to a strict definition, but usually refers to software that is freely available but doesn’t come along with the source.


This is a detail that must not be forget. In other words we could say that is free software with a limitation on usage and distribution for profit. There’s too much confusion around the BSD acronym, too many licenses similar to the Berkeley one are released under its name.

Actually, you should observe what appears as: On its own this software it’s free, but since it has no copyright it doesn’t have a license either, so anybody is free to do whatever he wants with it, even take ownership of the rights.

According to the various classifications explained in this giafomini, commercial software is such, only because it’s sold for profit. In many countries you may also be able to patent algorithms and other concepts tied to software. Proprietary software is the one that is nor free neither semi-free.

Use of the software can be granted for free or upon a payment. Software always has an owner, except for public domain software which is covered later in this bookwhich is such because he “owns the copyright “.

However, it is important not to do that while you are working with MS-Windows: Even if this concept doesn’t create any problem for software usage, it is not convenient to adopt this license if you don’t have such a need.

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