linux user group

today i was given a chart for making  invitation for voluntears for linux user group......the interviews for  LUG will take place on monday that is 16 fed of 09. the format of the linux user group chart is as following...

                                                                                   LINUX user group
L.U.G.
* LUG's have these kind of meetings:
>social
>technical presentation
>informal discussion groups
>GNU/LINUX installation
>configuration & bug-squashing.

What do LUG's do at meetings?
>instal distribution for new commers
>teach members GNU/LINUX
>compare GNU/LINUX to other operating systems
>teach its members about application software
>discuss the free software/ open source software

intrested students walk in interview on monday 16Feb'09 @ 4:30pm in PG-Block
teacher incharge: lec Ajay Shiv Sharman
for any queries contact: jasbir singh(d3 cse) 9815096548, daljeet pathania 97809570603.

UML diagrams

Unified Modeling Language

From Wikipedia, the free encyclopedia

  (Redirected from UML Diagram)

A collage of UML diagrams.

Unified Modeling Language (UML) is a standardized general-purpose modeling language in the field ofsoftware engineering.

UML includes a set of graphical notation techniques to create abstract models of specific systems.

UML combines the best practice from data modeling concepts such as entity relationship diagrams, business modeling (work flow), object modeling and component modeling. It can be used with all processes, throughout the software development life cycle, and across different implementation technologies.^[3] UML has succeeded the concepts of the Booch method, theObject-modeling technique (OMT) and Object-oriented software engineering (OOSE) by fusing them into a single, common and widely usable modelling language. UML aims to be a standard modelling language which can model concurrent and distributed systems. UML is not an industry standard, but is taking shape under the auspices of the Object Management Group (OMG). OMG has initially called for information on object-oriented methodologies, that might create a rigorous software modelling language. Many industry leaders have responded in earnest to help create the standard.^[1]

protocols

Internet Protocol

The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.

IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering distinguished protocol datagrams (packets) from the source host to the destination host solely based on their addresses.

Internet Protocol Suite

From Wikipedia, the free encyclopedia

The Internet Protocol Suite (commonly known as TCP/IP) is the set of communications protocols used for the Internet and other similar networks. It is named from two of the most important protocols in it: the Transmission Control Protocol (TCP) and the Internet Protocol (IP), which were the first two networking protocols defined in this standard.

IPv4

Internet Protocol version 4 (IPv4) is the fourth revision in the development of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. Together with IPv6, it is at the core of standards-based internetworking methods of the Internet, and is still by far the most widely deployed Internet Layer protocol.

IPv6

Internet Protocol version 6 (IPv6) is the next-generation Internet Layer protocol for packet-switched internetworks and the Internet. IPv4 is currently the dominant Internet Protocolversion, and was the first to receive widespread use.

Network security is integrated into the design of the IPv6 architecture. Internet Protocol Security (IPsec) was originally developed for IPv6, but found widespread optional deployment first in IPv4 (into which it was back-engineered). The IPv6 specifications mandate IPsec implementation as a fundamental interoperability requirement.