17-10-7 Brief Introduction to Linux background knowledge

The batch system is jobs1$$$$$$$$$$$$$$$ $jobs 2$$$$$ is slow, and is then co-created by GE, Bell Labs Bell and MIT's AI Lab to create a multi-tasking multi-user system. At that time the basic function of the machine had been realized, but the volume was large, called Multice, developed by the Assembly. Then Ge,bell lost interest, only MIT continued to develop.

Bell's Ken Thompson invented space travel in Multice, but Bell Labs withdrew and the game only ran in Multice, which he then researched and developed in the relatively backward PPD-7 mainframe, but the transplant was complex, Subsequently optimized to become Unics-->unix, the transplant is still complex .... 1972 Dennis Ritchie and Ken improved the B language to C, after which they rewritten the entire UNIX language in C.

In 1976, Ken joined Bill Joy's BSRG team, after which the improved UNIX system was called BSD (Berkeley system distribution), and the original Bell Labs UNIX called system V. Then 2 start selling, Unix temporarily stopped moving forward

Professor Andrew of the University of Holland, who was unable to use UNIX commercially, later made a system Minix, and did not let people drive into his system, and all Linus themselves a kernel Linux, free and freely changed, quickly spread out

In 1980, Stallman that the program should be freedom, with many hackers creating GNU (GNU is not Unix), following the standard GPL (general public License)

Are all source code:c--> compiled into binary (cross-compilation)

Abi:application Binary Interface,

Third-party organizations compile kernels and package release: Linux Publishers redhat SLS Debian SUSE Redhat earns a service charge, similar to some patch upgrades, where people can only buy services, sell and buy later protection, so there's a centos:community ENTer Prise Os, do is to convert the source code of Redhat into binary, and fully compatible, but there is no guarantee that Debian is not affected by the business organization or company, is responsible for most of the interests of the people, is the senior person, Ubuntu is based on two releases of Debian, Transfer with PC version, and mint is also

17-10-7 Brief Introduction to Linux background knowledge