1) Knowledge gained through study, communication, research, instruction, etc.
Verbal noun of → inform.
Fr.: contenu d'information
Fr.: entropie de l'information
The measure of information, which is usually expressed by the average number of bits needed for storage or communication. In other words, the degree to which the values of a → random variable X are dispersed. If the → probability density function of X is P(x), the entropy is defined by: H(X) = -Σ P(x) log P(x). Also called → Shannon entropy.
Fr.: flot d'information
The flow of data into a system or to the end users.
Fr.: paradoxe de l'information
A paradox raised in 1976 by S. Hawking (1942-2018) whose analysis of the thermodynamic properties of → black holes led him to the prediction that black holes are not in fact black, but radiate due to quantum effects. This implied that, due to the → Hawking radiation, a black hole would eventually evaporate away, leaving nothing. This deduction presented a problem for quantum mechanics, which maintains that nothing, including information, can ever be lost. A solution is that black holes radiate away a category of information through the Hawking radiation and at the same time they destroy all of another category of information, in compatibility with the → second law of thermodynamics.
dâneš-e azdâyeš azdâyik (#)
Same as → informatics.
Fr.: technologie de l'informtion
The science and activity of receiving, storing, processing, and transmitting information by using → computers.
negare-ye azdâyeš (#)
Fr.: théorie de l'information
The mathematical theory that defines, quantifies,
and analyzes the concept of → information.
It involves → probability theory in
→ transmission of → messages
when the → bits of information are subject to various
distortions. Its goal is to enable as much information as possible to be reliably
stored on a medium, retrieved, or communicated.
Fr.: information quantique
The science concerned with the transmission, storage, and processing of information using quantum mechanical systems. It exploits the notion of → quantum entanglement between systems and joins several fields of knowledge, mainly quantum physics, information, computation, and probability.