The term computing comes from french informatique, implemented by the engineer Philippe Dreyfus at the beginning of the '60s. The word is, in turn, an acronym for information and automate.
In this way, computer science refers to automatic information processing through electronics devices and computer systems . Computer systems must have the ability to complete three basic tasks: entry (information gathering), processing and exit (transmission of results). The set of these three tasks is known as algorithm .
Computer science brings together many of the techniques that man has developed in order to enhance his thinking, memory and communication skills. Its application area has no limits: computing is used in the business management , at storage , at process control , in the communications , in the transportation , in the medicine and in many other sectors.
Information technology also covers the main fundamentals of sciences of computing , such as programming for the development of software , the architecture of the computers and of hardware , networks like Internet and the artificial intelligence . It even applies to various themes of the electronics .
It is considered that the first programmable and fully automatic machine in history was the computer Z3 , designed by the German scientist Konrad Zuse in 1941 . This machine weighed 1,000 kilograms and it took three seconds to perform multiplication or division. The addition or subtraction operations, however, took 0.7 seconds.