Linux Learning: The first chapter-linux introduction __linux

A History of Unix

From 1965 to 1, the United States Institute of Technology (MIT), General Electric (GE) and AT&T Bell Labs jointly developed the Multics project, with the goal of developing an interactive time-sharing operating system with multiple program processing capabilities, But as Multics's pursuit of the goal is too large and complex, the project is far behind schedule, and finally Bell Labs announced the exit

2 1969, Ken Thompson of Bell Labs in the United States developed a UNIX system on the DEC PDP-7 machine.

3 1971, Ken Thompson's colleague Dennis Ritchie invented the C language, and in 1973, most of the UNIX system's source code was rewritten in C, which lays the foundation for improving the portability of UNIX systems.

Two common Unix

AIX IBM

HP-UX Hewlett-Packard

Solaris SUN

Three Linux development history

1 Minix

Invented by Andrew S. Tanenbaum (Tan Ningbong). Minix was originally released in 1987, opening all the source code to university teaching and research work. 2000 to be renamed the BSD mandate, to become free and open source software.

2 Linux

Linus Torvalds (Linus. Torvalds), at the University of Helsinki in Finland, built a new operating system core using the Minix operating platform, which he called Linux. 1991

The four common Linux

1, Fedora, RedHat RHEL, CentOS, SUSE, Gentoo, Red Flag, Mandriva, Turbolinux

RHEL Enterprise

CentOS 5.5 2.6.18 www.kernel.org 3.1. 14

2, Debian, Ubuntu

Five Linux features

Features: Open source free

Stability

Safety

Disadvantage: poor ease of use

Poor support of vendors

Six Linux application areas

Embedded applications