Date: 4 weeks ago   Category: Hi-Tech

The kernel of Linux was 27 years old


On August 25, 1991 after five months of development the 21-year-old student Linus Torvalds declared in a teleconference of comp.os.minix creation of a working prototype of the new Linux operating system for which completion of porting of bash 1.08 and gcc 1.40 has been noted. The first public release of a kernel of Linux has been presented on September 17. The kernel 0.0.1 had the size of 62 KB in summary form and contained about 10 thousand lines of the source code. The modern kernel of Linux contains more than 24 million lines of a code. According to the research conducted in 2010 by request of the European Union the approximate cost of development from scratch of the project similar to a modern kernel of Linux, would be more than one billion US dollars, by other estimates - more than 3 billion.

the Kernel of Linux has been created under an impression of the MINIX operating system which didn't suit Linus with the limited license. Subsequently, when Linux became the known project, ill-wishers tried to accuse Linus of direct copying of a code of some subsystems of MINIX. Attack was reflected by Andrew Tanenbaum, the author of MINIX who has charged to one of students to carry out detailed comparison of the Minix code and the first public versions of Linux. Results of a research have shown existence only of four insignificant coincidence of the blocks of a code caused by requirements of POSIX and ANSI C. Originally Linus has conceived to call

Freax kernel, from the words "free", "freak" and X (Unix). But the kernel has received the name "Linux" from an easy hand of Ari Lemmke who at the request of Linus has placed a kernel on the FTP server of the university, having called a directory with archive not "freax" as Torvalds asked, and "linux". It is remarkable that the enterprising businessman William Della Croce has managed to register the Linux trademark and I wanted to collect assignments over time, but later I have changed the mind and has transferred all rights for a trademark to Linus. The official mascot of Linux kernel, a penguin of Tux, has been chosen as a result of the competition which was held in 1996. The name Tux is deciphered as Torvalds UniX.

of the Loudspeaker of growth of code base (quantity of lines of the source code) of a kernel: 0.0.1 - September, 1991, 10 thousand lines of a code; 1.0.0 - March, 1994, 176 thousand lines of a code; 1.2.0 - March, 1995, 311 thousand lines of a code; 2.0.0 - June, 1996, 778 thousand lines of a code; 2.2.0 - January, 1999, 1.8 million lines of a code; 2.4.0 - January, 2001, 3.4 million lines of a code; 2.6.0 - December, 2003, 5.9 million lines of a code; 2.6.28 - December, 2008, 10.2 million lines of a code; 2.6.35 - August, 2010, 13.4 million lines of a code; 3.0 - August, 2011, 14.6 million lines of a code. 3.5 - July, 2012, 15.5 million lines of a code. 3.10 - July, 2013, 15.8 million lines of a code; 3.16 - August, 2014, 17.5 million lines of a code. 4.1 - June, 2015, 19.5 million lines of a code. 4.7 - July, 2016, 21.7 million lines of a code. 4.12 - July, 2017, 24.1 million lines of a code. 4.18 - August, 2018, 25.3 million lines of a code. Progress of development of a kernel: Linux 0.0.1 - September the 1991, first public release supporting only CPU i386 and which is loaded from a diskette; Linux 0.12 - January, 1992, a code has begun to be distributed under the license GPLv2;

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