Wednesday, 5 October 2011

Say No to Crackers

Every year the festival of lights fills our life with darkness!!!

Billions of Rupees are expended on Crackers by Indians during Deepavali. 

Crackers provides every type of pollution like Earth pollution , Water pollution, Air pollution, Sound pollution. 

Air pollution increases more than doubles and big cities become gas chambers. Crackers also release heavy metals among other toxic substances.  Noise levels cross deafening limits.

Children are the biggest victims as their defense mechanisms are not fully developed to withstand the increased intensity of pollution.Old people also get affected by the noise and gases of crackers.

Others also suffer from respiratory disorders like Asthma and even Heart Attacks.  

Bursting of crackers is now a means of "showing off " and is another opportunity to display ones wealth.

With so many people living in poverty, burning money on crackers is a shame.

The silent sufferers: Trees are coated with smoke which block their photosynthetic process.  Birds and Animals have to cope with loud blasts and toxic smoke leading to their disappearance from our city.

Do we have dare to say no to Crackers?

Because It’s DeepAavli not CrackersAavli.
Make Deepavali not just happy for us but also for surroundings.  Please Save Mother Earth.

Thursday, 1 September 2011

Acronym of IT Companies

Logica : Logica Private Limited
 => Reading, England [1969], 41000 Employees

HCL : Hindustan Computer Limited
 => Noida, INDIA [1976]

IBM : International Business Machines
 => NewYork, US [in 1911]

LG : Lak-Hui Chemical Industrial Corp[in 1947] + GoldStar in 1958
 => Lucky GoldStar (South Korea)

HP : Hewlett-Packard Company
 => Bill Hewlett, David Packard
 => Palo Alto, California (1939), US

Intel : Integrated Electronics
 => California (1968), US

Microsoft : Microcomputer Software
 => New Mexico (1975), US

Google : Google Inc.
 => California (1996), US

MindTree : MindTree Limited [1999]
 => Bangalore, India
--------------------------------------------------------------------------------

Adobe

This came from name of the river Adobe Creek that ran behind the house of founder John Warnock.

Apple Computers

It was the favorite fruit of founder Steve Jobs. He was three months late in filing a name for the business, and he threatened to call his company Apple Computers if the other colleagues didn't suggest a better name by 5 O'clock that evening.

CISCO

It is not an acronym as popularly believed. It is short for San Francisco.

Compaq

This name was formed by using COMp, for computer, and PAQ to denote a Small integral object.

Corel

The name was derived from the founder's name Dr. Michael Cowpland.
It stands for COwpland Research Laboratory.

Google

The name started as a joke boasting about the amount of information the search-engine would be able to search. It was originally named 'Googol'.
Googol = 10 to the power 100. After founders- Stanford graduate students Sergey Brin and Larry Page presented their project to an angel investor, they received a cheque made out to 'Google'.

Hotmail

Founder Jack Smith got the idea of accessing e-mail via the web from a computer anywhere in the world. When Sabeer Bhatia came up with the business plan for the mail service, he tried all kinds of names ending in 'mail' and finally settled for hotmail as it included the letters "html" - the programming language used to write web pages. It was initially referred to as HoTMaiL with selective uppercasing.

Hewlett Packard
Bill Hewlett and Dave Packard tossed a coin to decide whether the company they founded would be called Hewlett-Packard or Packard-Hewlett.

Intel
Bob Noyce and Gordon Moore wanted to name their new company 'Moore Noyce' but that was already trademarked by a hotel chain so they had to
settle for an acronym of INTegrated ELectronics.

Lotus (Notes)

Mitch Kapoor got the name for his company from 'The Lotus Position' or
'Padmasana'. Kapoor used to be a teacher of Transcendental Meditation of Maharishi Mahesh Yogi.

Microsoft

Coined by, Bill Gates to represent, the company that was devoted to MICROcomputer SOFTware. Originally christened Micro-Soft, the '-' was removed later on.

Motorola
Founder Paul Galvin came up with this name when his company started manufacturing radios for cars. The popular radio company at the time was called Victrola.

ORACLE

Larry Ellison and Bob Oats were working on a consulting project for
the CIA (Central Intelligence Agency). The code name for the project
was called Oracle (the CIA saw this as the system to give answers to all
questions or something such).

The project was designed to help use the newly written SQL code by IBM. The project eventually was terminated but Larry and Bob decided to finish what they started and bring it to the world. They kept the name Oracle and created the RDBMS engine. Later they kept the same name for the company.

Sony
It originated from the Latin word 'sonus' meaning sound, and 'sonny' a slang used by Americans to refer to a bright youngster.

SUN

Founded by 4 Stanford University buddies, SUN is the acronym for Stanford University Network. Andreas Bechtolsheim built a microcomputer; Vinod Khosla recruited him and Scott McNealy to manufacture computers based on it, and Bill Joy to develop a UNIX-based OS for the computer.

Yahoo!

The word was invented by Jonathan Swift and used in his book 'Gulliver's Travels'. It represents a person who is repulsive in appearance and action and is barely human. Yahoo! Founders Jerry Yang and David Filo selected the name because they considered themselves yahoos.

XML

XML was created by W3C to overcome the limitations of HTML.

HTML was designed with Humans in mind. As humans, you and I have the intelligence to understand the meaning and intent of most documents.

A machine, unfortunately, can't do that. While the tags in the document tell a browser how to display this information, the tags don't tell the browser what the information is.

A tag is the text between the left angle bracket (<) and the right angle bracket (>). There are starting tags (such as <name>) and ending tags (such as </name>)

An element is the starting tag, the ending tag, and everything in between. e.g.the <name> element can contain three child elements:
<title>, <first-name>, and <last-name>.


An attribute is a name-value pair inside the starting tag of an element.

XML creates document with self-describing data.
XML simplifies data interchange.
XML enables smart code.
XML enables smart searches.


Parser is a piece of code that attempts to read a document and interpret its contents.

Invalid Documents: don't follow the XML syntax rules and the rules defined in DTD/Schema.

Valid Documents: follow both the XML syntax rules and the rules defined in DTD/Schema.

Well-formed Documents: follow the XML syntax rules but don't have a DTD/Schema.

An XML document must be contained in a single element. That single element is called the root element, and it contains all the text and any other elements in document.

XML elements can't overlap.
You can't leave out any end tags.
XML elements are case sensitive.

XML Attributes must have values, those values must be enclosed within quotation marks.
If the value of the attribute contains a single or double quote:
a) you can use like (name="Preetesh's car")
b) Use Entity like &quot, &apos.


Most XML documents start with an XML declaration that provides basic information about the document to the parser.

The declaration can contain up to three name-value pairs.
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>ISO-8859-1 includes all char-set used by most Western European languages.
default encoding is "UTF-8".
default reference is 'standalone="no" '.
standalone="yes" means this XML doc can be processed without reading any other files.

A comment begins with <!-- and ends with -->.

JUnit

JUnit is a software testing framework for unit testing.

It is written in Java and designed to test Java applications.

It is an Open Source Software maintained by the JUnit.org community.


JUnit is a simple, open source framework to write and run repeatable tests.
It is an instance of the xUnit architecture for unit testing frameworks.

JUnit features include:
  1. Assertions for testing expected results
  2. Test fixtures for sharing common test data
  3. Test runners for running tests
JUnit was originally written by Erich Gamma and Kent Beck.

JUnit is mostly used by developers. JUnit is designed for unit testing, which is really a coding process, not a testing process. But many testers or QA engineers, are also required to use JUnit for unit testing.

Current and Electrons

Why is flow of current visible in form of spark/discharge, contrary to
flow of current in a wire?

Because sparks and discharges occur when the electrons are accelerated
by very high voltages, have therefore very high energies, and are hence able to ionize (or at least excite) gas atoms. When these atoms recombine (or get de-excited), light is released. What you see is that light.

In contrast, the electrons forming the current in wire have in general very low energies (rough estimate: the energy is at least a factor 1000 lower).

(1) Electrons forming the current in wire is not enough to ionize atoms or even cause much excitations,

(2) even the small excitations which are nevertheless caused don't release very much energy when the atoms get de-excited, and therefore no visible light, but at best infrared radiation, and

(3) wires are obviously not transparent, so even if light was created in the wire, you would not see it from outside.

Electrons can't be seen because, they are smaller than the wavelength of visible light.

Founders in Java Technology

Java(called Oak 1991-94) : James Gosling in 1995

Servlets  : Sun in 1997
Servlet 2.4  : 2003 (J2EE 1.4) web.xml uses XML Schema
Servlet 2.5  : 2005 (JEE5, JavaSE5) supports Annotation
Servlet 3.0  : Dec2009 (JEE6, JavaSE6) Pluggability, Ease of Development, AsyncServlet, Security, File Uploading


JSP   : Sun in 1999

EJB   : IBM in 1997
EJB 2.1   : in 2003
EJB 3.0   : in 2006
EJB 3.1   : in Dec 2009

Tomcat & Ant  : James Duncan Davidson

JUnit   : Kent Beck

Java Collections Framework : Josh Bloch

JBoss AppServer  : Marc Fleury in 2001

Struts   : Craig Mcclanahan

Spring   : Rod Johnson

Hibernate  : Gavin King

JSF   : Java Community Process

in 2006 (JSF 1.2 -- JEE5)
in 2009 (JSF 2.0 -- JEE6)
in Oct2010 (JSF 2.1)

Different CodeNames of Java:
-----------------------------------
Java 1 - Oak (1991-95)
Java 1.0.2 - Java
J2SE 1.2 - Playground (1998)
J2SE 1.3 - Kestrel (2000)
J2SE 1.4 - Merlin (2002)
Java SE 5 - Tiger (2004)
Java SE 6 - Mustang (2006)
Java SE 7 - Dolphin (2011)
Java SE 8 - *** (2012)

RSS

RSS (Rich Site Summary) is a format for delivering regularly changing web content. Many news-related sites, weblogs and other online publishers syndicate their content as an RSS Feed to whoever wants it.

RSS solves a problem for people who regularly use the web. It allows you to easily stay informed by retrieving the latest content from the sites you are interested in.

Benefits:
1. You save time by not needing to visit each site individually.
2. You ensure your privacy, by not needing to join each site's email newsletter.


A variety of RSS Readers are available for different platforms. Some popular feed readers include Amphetadesk (Windows, Linux, Mac), FeedReader (Windows), and NewsGator (Windows - integrates with Outlook).

There are also a number of web-based feed readers available. My Yahoo, Bloglines, and Google Reader are popular web-based feed readers.

Once you have your Feed Reader, it is a matter of finding sites that syndicate content and adding their RSS feed to the list of feeds your Feed Reader checks. Many sites display a small icon with the acronyms RSS, XML, or RDF to let you know a feed is available.