Linux is the general usage form which is the reminiscent of Linux Kernel using Unix-like operation systems. Linux is one of the favourite samples of open source code development and free software; typically complete source code can be used, it can be modified without a charge and can be distributed by anyone.
Many applications on the UNIX machines can not be distributed as executables due to they are under different platforms, they are offered as source codes. A user which wants to use the software runs this source code by assembling it on his/her platform. Many kind of these softwares can be runned under Linux easily.
You can work under Linux operation system with X window system and graphical interface like you are working under Windows. Everyone who works with Windows can pass to X Window Interface. With X more than one window can be opened in the display, more then one application can be controlled with the mouse.
Many application (especially internet-based) has versions running on X. Thanks to this you have the chance to complete your work without turning to the text based disyplay back. Thus Linux will have a workstation appearence and practicability.
It can run real Multithread Applications
Preferred application types on the Linux platform are Network and Internet Applications, Database Applications.