History of Computer Science

From the last decade ,computers and internet(Information Technology ) had made our life fast and comfortable.I am posting some important events to remember the step by step building of modern Technology

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1822
Charles Babbage designs his first mechanical computer

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1848
Boolean algebra is invented by George Boole

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1880
Alexander Graham Bell invents the telephone called the Photophone

Understanding Internet:History governance and development

History
Inter-net or International Network,is a group of inter connected computers and devices all over the world.Internet is a modified or we can say a develop form of Arpanet (Network of US Defence Department) and NSFnet(a network of scientists to exchange information)  .It came into existence in 1982 after the Arpanet ,NSFnet and other commercial and private networks were linked together to exchange information through TCP/IP protocol.So we can say Internet is a network of networks.Before that numerous private and commercial networks exists, each having its own price plan,own protocol and terms.Internet was started with 50 servers and 7 domain names were introduced(.com,.net,.mil,.org etc) each having its own meaning .

What Is Java:Java vs Javascript

Java is a programming language that allows Web page developers to embed applets, including games and other programs that wouldn't run under normal coding. Java has become one of the most popular Web applications ever made, with 10 million users and counting since its creation.
Three people were behind the idea when it was first conceived in 1991. James Gosling, Mike Sheridan and Patrick Naughton had originally built the code with television in mind, hoping to take it to new interactive heights. However, at the time, digital cable wasn't quite ready for the technology, so Gosling turned to make it compatible with a Java virtual machine (JVM for short), with a language that used a C/C++ set-up.
Java vs. JavaScript

Sitemap :indexing the site

What is a sitemap?
Site map is just like a blueprint or like  a map of house it tells the search engine about your pages ,posts and links and help the engine to recogniseand add them in  index.Although adding of links in the search engine database is done by crawling frequently but sometimes some links are missed especially when the site is too big .Then one needs a sitemap.
Preparing a Site map?

RUPEE SYMBOL

In the recent period a new symbol has been introduced in the world,this is the symbol of currency of one of the big & developing country,India.This is the symbol of its rapidly increasing economy.the symbol of rupee(Rs.).Soon after its introduction in the world IT industry also introduced its code,so that it can be used on devices.You can easily get it from font list of your system