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Linux
The free operating system Linux was created in 1991 on the initiative of the Finnish student named Linus Torvalds. It regretted the weather where he learned thecomputer the university system Minix. He then launched into the design from scratch, a new kernel, Which could be grafted FOSS developed by the Free Software Foundation by Richard Stallman.
After developing a usable version, he was sent to users, through Usenet. To enable a process of effective collaboration, it has placed its code under the license LPGInvented by Richard Stallman with the help of an American law professor. Many developers have volunteered to help, and thus has started the history of Linux.
It combines kernel (kernel), whose development is still overseen by Linus Torvalds and many other Software part of which was developed by the FSF in the project GNU: That is why we often talk about GNU / Linux). Several companies have started to publish distributions, involving the kernel and many utilities and applications.
Today, Linux is considered as an alternative to proprietary commercial publishers.
Liquid Audio
Compressed audio format and secure ownership that allows artists to offer paid downloads cons.
Scanning electron beam lithography
Etching technique using a beam ofelectrons to create a pattern on a hollow surface. It is especially used for the realization of electronic circuits Semiconductor and in the field of Nanotechnology.
Compared to photolithography, which uses light and is also used to manufacture semiconductors, it allows for finer engraving, Agenda nanometer. The difference is the difference of wavelengths. The light used in photolithography (in the range of theUltraviolet) Induced phenomena diffraction which limits the fineness of the engraving.
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