Introduction: Internet
sure everyone uses the Internet for many hours a day, and in particular search engines.
" Try to find web pages that speak of the relationship between mouse and Disney. We do not want pages that talk about mouse without mentioning Disney or pages that talk about without mentioning Disney mouse, but only pages that talk about both. Our research requires the operator AND : Disney AND mouse. However, if we wanted to find all pages that talk about Disney - even though there is talk of mouse - and with all the pages that discuss mouse - even if Disney is not mentioned - we did a search in OR : Disney OR mouse. Finally NOT : its use is fairly intuitive: the search for mouse AND (NOT Disney ) gives us such as all pages that discuss mouse, and which is not mentioned Disney "
" In everyday life, we think For example, when we want to leave the house if it rains we can not get out, this thought process, that is the test if it rains, it can take two states, or is it true (and therefore do not go out) or is false (and then we go out). One can understand that if this kind of logic is useful to us as human beings, it is even more for a computer because its language is made of bits and you can only associate with the true value 1 and the false value 0. "
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