Computer Programming and Information

Saturday, 10 January 2015

Steve Jobs- Entrepreneur,Cofounder of Apple Inc

Steve Jobs was cofounder of Apple Computer.Jobs showed an enthusiastic interest in electronics starting in his high
school years and gained experience through summer work at Hewlett-Packard.In 1974, he began to work for pioneer video game designer Nolan Bushnell at Atari. He also
became a key member of the Homebrew Computer Club, a group of hobbyists who designed their own microcomputer
systems using early microprocessors.
Meanwhile, Jobs’s friend Steve Wozniak(Cofounded Apple With Jobs) had developed plans for a complete microcomputer system that could be
built using a single-board design and relatively simple circuits.
They formed a company called Apple Computer(named apparently for the vanished orchards of Silicon Valley)
and built a prototype they called the Apple I.Although
they could only afford to build a few dozen of the machines,
they made a favorable impression on the computer enthusiast
community. By 1977, they were marketing a more complete
and refined version, the Apple II about 2 million of the machines were eventually sold. In
1982, when Time magazine featured the personal computer
as its “man of the year,” Jobs’s picture appeared on the cover. Jobs left the
company in 1985. Using the money from selling his Apple
stock, Jobs bought a controlling interests in Pixar, a graphics
studio that had been spun off from LucasFilm. He also
founded a company called NextStep. The company focused
on high-end graphics workstations that used a sophisticated
object-oriented operating system.Jobs returned as CEO of Apple. By then the
company was struggling to maintain market share for its
Macintosh line in a world that was firmly in the “Wintel”
(Windows on Intel-based processors) camp. He had some
success in revitalizing Apple’s consumer product line with
the iMac, a colorful, slim version of the Macintosh. He also
focused on development of the new Mac OS X, a blending of
the power of UNIX with the ease-of-use of the traditional
Macintosh interface.Jobs only made the apple products to be more fame among the people.
Jobs died on October-5 2011.

Sunday, 28 December 2014

Founder of Amazon

Jeff Bezos

In 1995 Jeffrey Bezos(founder and CEO) founded the famous e-commerce website Amazon.

Its headquaters is in Seattle Washington.It is the largest internet based company in USA.

It was initially an online bookstore and it became one of the first success of internet economy as an e-Commerce website.

Bezos decided that books were a good product to market through Amazon.

Several million books are in printed at any one time,

with about 275,000 titles or editions added in 2007 in the United States alone.

Over the years the company’s offerings have expanded beyond books to

34 different categories of merchandise, including software,

music, video, electronics, apparel, home furnishings, and

even nonperishable gourmet food and groceries.

Amazon is now providing Web hosting service also.

And its service had also expanded to lot more countries in the world including India.

the company achieved its first profitable year in 2003.

Since then growth has remained steady and generally impressive.

In 2005, Amazon.com earned $8.49 billion revenues with a net

income of $359 million.

Now Amazon is one the top most leading online marketer.

Note:Stay tuned for more information regarding various categories.

Saturday, 27 December 2014

JAVA POST 1

Hope you all have done with installing IDE if not so, then install it first as said in our previous post.

It will be better if you install NET BEANS IDE. Because all the Example in our blog will be Executed in NET BEANS.

So before starting java let me say what you will learn here

To understand java in depth i am separating it in two levels

Link to Download NetBeans: https://netbeans.org/downloads/

Basics of java

Level :1

1)OOP concepts brush up
2)Data types
3)Variables
4)Keywords
5)Modifiers
6)Methods
7)Constructor
8)this Keyword
9)Super Keyword
10)Getting Input from keyboard using Scanner Class.
11)Static Keyword
12)Final Keyword
13)Inheritance
14)Interface
15)Overloading and Overriding

Level:2

16)Arrays
17)Collections
18)JDBC
19)Thread
20)Swing
21)Generic
22)Graphics programming in java
23)Event handling
24)Network Programing

Tommorrow i will post OOP concepts ,Check it out and post your doubts in comment box.We are always there to clear your doubt..

Let me know any mistake in the post..so i can correct it.

Thursday, 25 December 2014

Installing JDK and Initial Setup

The first step in Java Programming is Installing the Latest Version of JDK(Java Development Kit) and Environment variable setup.Without this we can't do anything.
After Installing the JDK in the 'C' or some directory.The next step is to setup the Environment variables.
What is the Pupose of setting Environment Variables?
While a code has to executed,we simply run it from bin directory rather than that its lot more easier to setup a environment variable and it extends our usability that we can place java file anywhere in the computer and can be executed using command prompt.
How to Setup Environment Variable?
Assumed that jdk is installed in C directory.
1.Right-click on 'My Computer' and select 'Properties'.
2.Click on the 'Environment variables' button under the 'Advanced' tab.
3.Click on New and make variable name as "Path" and value as
"C:\ProgramFiles\Java\jdk1.8.0_05\bin"

I hope you are done with the inital setup of java Environment in your system.
How Java code can be compiled and executed?
Java code can be executed in two ways.
1.By using the command prompt.
javac javafilename.java(To compile to byte code)
java classfilename(To execute the class file)
2.Using a Integrated Devolpment Environment.
There are two fabulous IDE's.
Netbeans- https://netbeans.org/index.html
Eclipse -http://www.eclipse.org/.
I myself recommend you to stick with IDE because it allows various error correction mechanisms too.
I wish to conclude this post that,these are basic things to be done to work with java. So next we are going to write a Simple program and after that we are
going to discuss about the essential things to be master in java.

(It may really bored one who already known this,I am writing for absolute beginners too so i am including these ideas but after some posts it'll be really interesting
for the programmers too)

Java Programming Introduction

Just entering straight into the matter.Lets discuss about java programming right now it'll extend some days in between that there are lot more cool stuffs for those who are really craze about computers.

At various instance we only start programming with C or C++ but its all common with java except something.

Why I starting with java?
If u believe that you can start programming only with C and i"ll assure you that you can definitely do the same in java.It's soo easier and lot more features in java let you do more than a procedural language.

Brief Introduction about Java:
Java is invented by JamesGosling in 1995 while he is working at Sun Microsystems now it is undertaken by Oracle corporation.
Its been a populous and fabulous language for many years.
Because of its WORA(Write Once Read Anywhere)compatibility its stunning the programming world.
Its a easier language too and it has lot of oppurtunities in the developing environment.
It has so much of Advantages and its has unique features too.
Actually we are not going to write theory about java.These things are more than enough.
The main objective is to play with the code and master with basics of java programming.
So next step is we are going to step into java programming,so stay tuned.

Note:I may post lots of updates in a day so check frequently.And i kindly request you to post comments that will help us to improve myself.If u want any specific information i'll do the needful.

World's first Computer Programmer!

Even a person who is master at programming may not know who is the worlds first computer programmer.
Before going to speak about the programming we must know who is the first programmer.

Lady Ada Lovelace(1815-1852)

Yeah,She is the world's first Computer programmer.
She studied at University of London and the awesome information is she wrote the world's first program for Babbage's (Father of Computer) Difference Engine or Analytical Engine.
She met Charles Babbage and learned about his computer
design, she translated his work and wrote the world’s first
computer program.