Wednesday, August 13, 2008

terns and the definition about computer..

1. CUSTOM SOFTWARE..

Custom software (also known as Bespoke software) is a type of software that is developed either for a specific organization or function that differs from or is opposite of other already available software (also called off-the-shelf or COTSsoftware). It is generally not targeted to the mass market, but usually created for companies, business entities, and organizations. Custom software is also when companies or governments pay for customized software for budget or project managing.
Examples of bespoke software include ATMs and Supermarket checkout scanners. Other examples include many web sites and web-based applications.


2. PUBLIC DOMAIN SOFTWARE

Public domain software is software that is not copyrighted. If the source code is in the public domain, that is a special case of non-copylefted free software, which means that some copies or modified versions may not be free at all.
In some cases, an
executable program can be in the public domain but the source code is not available. This is not free software, because free software requires accesibility of source code. Meanwhile, most free software is not in the public domain; it is copyrighted, and the copyright holders have legally given permission for everyone to use it in freedom, using a free software license.
Sometimes people use the term "public domain" in a loose fashion to mean "free" or "available
gratis." However, "public domain" is a legal term and means, precisely, "not copyrighted". For clarity, the Free Software Foundation recommends using "public domain" for that meaning only, and using other terms to convey the other meanings.
Under the
Berne Convention, which most countries have signed, anything written down is automatically copyrighted. This includes programs. Therefore, if you want a program you have written to be in the public domain, you must take some legal steps to disclaim the copyright on it; otherwise, the program is copyrighted.

3. SHAREWARE

Shareware is a marketing method for computer software in which the software can be obtained by a user, often by downloading from the Internet or on magazine cover-disks free of charge to try out a program before buying the full version of that program. If the "tryout" program is already the full version, it is available for a short amount of time, or it does not have updates, help, and other extras that buying the added programs has. Shareware has also been known as "try before you buy". A shareware program is accompanied by a request for payment, and the software's distribution license often requires such a payment.

Sunday, August 10, 2008

educational portal..

hi..today i will give you the addresses for education portal.
it will help you and I know it will give you a lot of benefits..
as we live in the modern era, we can learn using the internet too.
so,what are you waiting for?just grab the opportunity..
The following links will take you to a very large variety of free educational internet sites.
you just click on the topic that you want to know..
for those that will become an educator, the link also provide a chat rooms for teachers..
so, if you you want to know others' experiences, you can chat with them in the chat room provided.
there, you can choose the course that you are taking now and it will give you a lot of information about that..