about LINUX

LINUX is the generic term referring to UNIX-like operating system that use the LINUX kernel. LINUX kernel is entirely original piece of software developed by the LINUX community, where it's code is free.

The basic LINUX is matured when it is increase it's functionality(has been met with LINUX distribution).

LINUX distribution contains : standard component
set of administrative tools
- subsequent upgrading
- manage installation
- removal of other packages on the system

LINUX Version Number
Kernel with ODD minor-version number(ex: version 1.1,1.3,2.1) = development kernels
Kernel with EVEN minor-version number(ex: version 1.0,2.0,2.2) = stable production kernels.

p/s : update against stable kernel is a remedial version!

LINUX history
LINUX 1.0 -> is basic
LINUX 1.2 -> much wider in variety of devices
LINUX 2.0 -> support multiple architecture
-> support multiprocessor architecture

LINUX kernel is for the LINUX project and it is complete if it put with the other component. For the networking administration tool, LINUX take from the 4.3BSD(Berkeley Software Distribution) code. Recently, the FreeBSD take from the LINUX code.

LINUX Distribution
Early
Fetch latest revision from FTP(File Transfer Protocol-a standard network protocol used to copy from one host to another over a TCP/IP-based network such as internet) sites and compiling them.
Provide means of unpacking all files into appropriate places.
Now
It provide a standard-given the precompiled sets of package for easy installation.
It include package tracking-can be installed, updated or removed.

LINUX License
GNU general public license (GPL)

The Design Principle
Early
The development carried by individual enthusiasts.
Now
Useful in under 4MB of RAM.
Achieved official POSIX certification.

p/s : the full certification respect to the standard include the fee and the expend is SLOW. Therefore, the LINUX license remain to be GPL.

The Component Of LINUX System
Kernel
System libraries
System utilities