What is HTML programming language
HyperText Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS), and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web.[1] Web browsers receive HTML documents from a webserver or from local storage and render them into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.
What is Internet? What is its most important feature?
A means of connecting a computer to any other computer anywhere in the world via dedicated routers and servers. When two computers are connected over the Internet, they can send and receive all kinds of information such as text, graphics, voice, video, and computer programs.
No one owns Internet, although several organizations the world over collaborate in its functioning and development. The high-speed, fiber-optic cables (called backbones) through which the bulk of the Internet data travels are owned by telephone companies in their respective countries.
The Internet grew out of the Advanced Research Projects Agency's Wide Area Network (then called ARPANET) established by the US Department Of Defense in 1960s for collaboration in military research among business and government laboratories.
The internet is changing the way we live, work, produce and consume. With such extensive reach, digital technologies cannot help but disrupt many of our existing models of business and government.
As we enter the age of the Fourth Industrial Revolution, a technological transformation driven by the internet, the challenge is to manage this seismic change in a way that promotes the long-term health and stability of the internet.
At the heart of the internet is data – massive amounts of it. Volumes of data are growing at a rate of 40% per year and will increase 50 times by 2020. A measure of the speed of growth is the estimate from Singapore-based Aureus Analytics that 90% of all data in the world was created in the last two years.
What is Java language.Basics.
Java is a computer programming language. It enables programmers to write computer instructions using English based commands, instead of having to write in numeric codes. It’s known as a “high-level” language because it can be read and written easily by humans. Like English, Java has a set of rules that determine how the instructions are written. These rules are known as its “syntax”. Once a program has been written, the high-level instructions are translated into numeric codes that computers can understand and execute.
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Basics
Basic About Java programs, it is very important to keep in mind the following points.
• Case Sensitivity − Java is case sensitive, which means identifier Hello and hello would have different meaning in Java.
• Class Names − For all class names the first letter should be in Upper Case. If several words are used to form a name of the class, each inner word's first letter should be in Upper Case.
• Method Names − All method names should start with a Lower Case letter. If several words are used to form the name of the method, then each inner word's first letter should be in Upper Case.
• Program File Name − Name of the program file should exactly match the class name.
• public static void main− Java program processing starts from the main() method which is a mandatory part of every Java program.
What is a web servers?
Every Website sites on a computer known as a Web server. This server is always connected to the internet. Every Web server that is connected to the Internet is given a unique address made up of a series of four numbers between 0 and 256 separated by periods. For example, 68.178.157.132 or 68.122.35.127.
A Web site typically contains a collection of related information organized and formatted so it can be accessed using software called a browser.
A Web page is the product or output of one or more Web-based files displayed in a format similar to a page in a book.
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