An Idea About Linux

Linux is a Unix-like computer operating system. Linux is one of the most prominent examples of free software and open source development; typically all underlying source code can be freely modified, used, and redistributed by anyone.

The Linux kernel was first released to the public on 17 September 1991, for the Intel x86 PC architecture. The kernel was augmented with system utilities and libraries from the GNU project to create a usable operating system, which led to an alternative term, GNU/Linux. Linux is packaged for different uses in Linux distributions, which contain the sometimes modified kernel along with a variety of other software packages tailored to different requirements.

Predominantly known for its use in servers, Linux is supported by corporations such as Dell, Hewlett-Packard, IBM, Novell, Oracle Corporation, Red Hat, and Sun Microsystems. It is used as an operating system for a wide variety of computer hardware, including desktop computers, supercomputers, video game systems, such as PlayStation 2, 3, several arcade games, and embedded devices, such as mobile phones and routers.

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What is J2EE?

J2EE stands for Java 2 Platform, Enterprise Edition, a programming language developed by Sun Microsystems. The Java Platform is a virtual machine, a processor look-alike that translates computerized instructions into functions.
Java language allows cross-platform communication between various kinds of devices. Java portability “WORA” means Write once run anywhere, well for example if programmers develop code on a desktop PC expects it to run even on mobile phones as long as the device is java-enabled. Now you can see that many electronic devices operate using java platforms.
Enterprise Edition, on the other hand is a powerful form of the Java Platform. Sun has created three editions so far, the J2EE, J2ME (pda’s) and J2SE (mobile, laptops and desktop). J2EE is available for free; it can easily download from the Sun Microsystems website.