What is BITCOIN ? | Swaroop's Blog

Bitcoins have been the talk of the economic world ever since US senate has decided to take them seriously. So, for those who don't know about Bitcoins, this article gives you a quick overview of it.
 
So,What is Bitcoin?

                 Bit coin is a Decentralized, digital, peer to peer (P 2 P), crypto currency. That is too many techy words in one sentence. So, let's break it down part by part and try to understand what it means.

• Decentralized -  There is no central authority or bank to create Bit coins unlike the regular currency, where a central monetary authority prints (mints) it and distributes it.
• Digital Currency - It is electronics money (e-cash) that can act as an alternative currency. Not to be confused with Virtual money, because this is real deal. You can use this to buy real goods and things.

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Even Numbers & Odd Numbers !!

Numbers are very interesting things. Even and Odd numbers have many interesting Properties. One such interesting property have been explained in the following video with examples. So, watch it and have fun :)

                            

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What happens if Earth stopped rotating ?

Rotating earth

We all know that earth rotates around itself at a huge speed and also moves around the Sun. But did it ever occur to you what will happen if the rotation stops ? (Revolution is going just fine. if that stops it would be a complete different scenario)

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Spontaneous Human Combustion - A Rare Medical Condition

What is SHC ?
Spontaneous Human Combustion is the burning of human body without any apparent external source of fire (as if it is internal).  It is a very rare and strange phenomenon and many people have put forth many hypotheses to explain this medical condition, but no one knows the exact reason for this but the proposed theories often include supernatural sources and new sub-atomic particles. The scientists obviously don't believe in supernatural and ghosty stuff, neither did they ever found the evidence of the so called sub-atomic particle. Here are the reasons they believe causes SHC.

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How does a solar power system work ?

Solar power systems contain several components which work together to convert the sun's energy into electrical power that can be connected to a building’s standard electrical infrastructure and/or the utility grid. The following are the some of the major parts of a typical solar power system instalment.

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Keyboard Lights go DISCO | Cool Notepad Trick

We all use keyboard for typing. But how many of you can play with your keyboard?

This is an interesting and fun way to make the LED's on your Keyboard blink in Disco Style. Caps Lock, Num Lock, Scroll Lock are the three LED's which we'll use for this program. With the following code we can make them blink rhythmically. This trick can be used as a prank to fool your friends. This is a small program written in Visual Basic. So, if you are familiar with VB you can tweak it a little or else you can just work with the program given below. 

STEPS:

1. Open Notepad on your computer

2. Copy the following code and paste in to the Notepad file

Set wshShell =wscript.CreateObject("WScript.Shell")
do
wscript.sleep 400
wshshell.sendkeys "{CAPSLOCK}"

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Things you don't know about STICKY NOTES in Windows

STICKY NOTES is an inbuilt application in Windows 7 that helps you to catalogue your events and also to remember them. You can save important ideas,to-do list, meetings or any other things you want to remember just like the normal sticky notes but electronically (Save paper, save the world :)). Here are a few things you probably don't know about STICKY NOTES.

To change the color of a sticky note:

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How To Password Protect your Folders without using software

Are you insecure of your privacy? Do you want to keep your secret files hidden from other people like your friends or brothers & sisters? Then here is an easy way to We are going to create password protected folder without using any software just using batch script file(.bat).

• Decide where you want to have your PRIVATE folder first. It could be on your desktop or in your C Drive or somewhere else.
• Now open 'Notepad' and copy the following code into it. 

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Matrix Rain / Falling Matrix code : Notepad trick

Have you watched the movie matrix? If you have watched it you would surely have noticed the green coded numbers running up and down (also called Matrix Rain) on the screen. In this That falling code trick is very easy to create on your own. Now, I'll show you how to do that.

STEPS TO GENERATE FALLING MATRIX CODE:
1)Open Notepad on your computer
2)Now, copy and paste the following code in to Notepad

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HTML5 Canvas Basics part-3

                                           Drawing a line 

       Now that we have setup canvas and context, it's time for methods ..before we get into that ,we just have to note that the pixel(coordinate) convention ,as canvas is a '2d' grid ,the upper left corner is (0,0) ==> (x,y).

and as we move to the right x coordinate increases , if we go down y coordinate increases.

       For drawing a line we first go to the point where we want to start the line and from that position we draw a line to the end point.So we need two points.

We do that using different methods( ) 

• beginPath( ) - declareswhere we are about to draw the new path
• moveTo( ) - it positions the context point
• lineTo( ) - it draws a straight line from starting point to ending point
• stroke( ) - to fill the outline of the path.(by default stroke =0 )

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How to Resize images easily

   Have you ever wondered  How to shrink the size of an image? How to re-size an image for my profile picture? Then this post is for you. Re-sizing an image is very useful these days either for sending it via emails or for posting it on your blog or for profile pictures in your social networking sites. So, here in this
post we'll show you how to re-size your images either a JPEG or PNG or GIF or BMP or other formats without having to install any new software and that too very easily using screen shots at each and every level.

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HTML5 Canvas Basics Part - 2

Canvas Overview :

   As we have told earlier, canvas specifies a certain space on the web page. So we can have multiple canvas in the same page. Then it would be difficult to keep track of all of them at once. That is why, we alwaysid attribute' to each canvas, so that we can  refer to them in the script, We have the width and height attribute to define the size of the canvas. (The below message will be displayed on your webpage if you have opened the code in a browser which doesn't support canvas)

<canvas id="myCanvas" width="200" height="100">It seems your browser doesn't 
support canvas. Please upgrade to newer version of browser.</canvas>

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HTML5 Graphics : Canvas Basics Part - I

   
     We are hearing more about HTML 5 now-a-days. It is the future of web development. Even though it is still in progress it is supported by many browsers such as Chrome, Firefox, Opera, Safari, IE (current versions).

HTML 5 logo by W3C

What exactly is it ? What's so special about that?

 HTML 5 will be the new standard  for HTML.It has many interesting features which will make our work more easier and better.

Some of those are:

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How to download Youtube videos without any softwares

    Does this ever happened to you that you like a you tube video so much and you want to download it so you can, may be watch it later or show it to someone else ? Well , you are in the right place. Now, we will show you an easy step by step way of how to do that ! Did I mention it's absolutely free ?

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How To Add a Template to your blog

           Have you got a blogger template which looks awesome and you want your blog to look just like that ? That's what we'll show you in this tutorial. But before you upload a template file, you need to have one. So, if you already don't have one Google It and download a template. It downloads on to your computer as an XML file. Since you have a template now, Let's proceed with the tutorial.

Note: As always when ever you are going to upload a new template, it is always healthier to backup your current template, so that you can revert back if you don't like the new one. Just an advice for ya. Drop it or Take it. :)

Steps to Upload a template on to Blogger:

1)Open Your Blogger Dash Board and click on the 'TEMPLATE' button

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HTML5 Canvas + Javascript

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Return Values of printf() and scanf()

           Most of people who know C Programming knows about printf( ) and  scanf() functions .We start using them when we begin learning C programming just assuming they are standard input and output functions ....but when we  come to learn functions ...sometimes we tend to look down upon these functions and neglect them as we have used them so many times. But that is a mistake.

if(mistake==1)
printf("Let's correct our mistake by reading this Post");
else
printf("Just skip this post...so many posts are awaiting you");

printf ( ) ?

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List of Commands for RUN

The following are the list of commands you can use in your Windows 'RUN' prompt to easily open many applications.

To Open Run , you can type 'Run' in search or use the shortcut, 

 'window button' + R.

Then you put any of these in to that and you can get the desired output. This is the sort of like command line environment and you may think it is outdated. But, trust meonce u start using it you don't wonna stop it. Even for those who thinks 'command line' is a complete waste of time, just once start using it. It is always good to have a change over. Who knows, you may even change your mind :)

This is the list. Enjoy !!

• Administrative Tools = control admin tools
• Calculator = calc
• Command Prompt = cmd

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How to add a FLYOUT menu to your blog

     Now that we have seen how to add drop down menu's to our blog...if you didn't ,go checkout that using the link provided. Sometimes we want menu on the left side like 'FLY OUT'  menu. So in this article we will show you how to add such fly out menu to our blog..

1) Open your Blogger dashboard click on the " TEMPLATE " button.

2) Now click on 'EDIT HTML' button beside 'Customize' button .

3)Now,click on Jump to widget on the top.

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How To add an awesome DROP DOWN MENU BAR

      Every body want to have their blog good looking. Drop down menu's are one of the very essential elements in this. These are very important because the first thing a user looks on your blog is the menu's. A Good and Beautiful Menu gives a good first impression for the viewer and makes him to come back to your blog again. So, here in this article we will show you how to add a beautiful and awesome looking drop down menu.Read the instructions carefully and add this Menu to your blog. Don't forget to share this article with your friends from the social tab on top.

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C program for Anagram checking

      The below program is to check whether two words are anagrams or not.The concept used is that we store the frequency of an alphabet in a word .By checking those counts we determine whether they are anagrams  or not ....count same == anagrams.

#include <stdio.h>
#include<conio.h>
int anagramchecker(char [],char []); //declaration of funtion
int main()
{
   char word1[50], word2[50];
   printf("Enter first word:\n");
   gets(word1);
   printf("Enter second word:\n");
   gets(word2);
   anagramchecker(word1,word2); //calling function to check anagrams
   getch(); return 0;
}

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Restart Your Computer Using C Program

You can easily do all your typical system operations using C programming. This article will show you how to restart from C programming console. Just Compile and execute the following program.

#include <stdio.h>
#include <stdlib.h>
 main()
{
   char Restart;
 
   printf("Do you want to restart your computer now (y/n)\n");
   scanf("%c",&Restart);
 
   if (Restart== 'y' ||Restart == 'Y')
      system("C:\\windows\\System32\\shutdown /r"); //for windows 7
//  system("C:\\windows\\System32\\shutdown -r"); for windows xp

/* for ubuntu linux
      system("shutdown -"your option") */

   return 0;
}

 This program calls the system function of "stdlib.h" which is used to execute  shutdown.exe which is present in C:\windows\system32 in Windows XP,Windows 7. For more options take a look at this.

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How To Unlock Widgets In Blogger

UNLOCK LOCKED WIDGETS

                 By default most of the widgets in Blogger are not locked , i.e., you can edit them by clicking on 'edit' and even remove them completely (if u want) from the 'LAYOUT' section. But You might have noticed some widgets like Navbar widget, Header widget, Attribution widget by default comes locked. So, You can't edit them directly. Here i'll show you how to UNLOCK them to make them editable and then you can do        what ever you want with them.Here is a easy step wise procedure to help you through till the end.

How To UNLOCK : 

1)Open Your Blogger Dash Board and click on the 'TEMPLATE' button

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Copying folders and files

#include<stdio.h>
#include<stdlib.h>
int main ()
   {
 int i;
 printf ("\n");
 i = system(" XCOPY [source path] [destination path] [options] ");
 printf ("Returned value is: %d.\n",i);
        return 0;
   }

Copy files and/or directories to another folder. XCOPY is similar to the COPY

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Know Your Current Directory | Using C Programming

The below program shows the usage of system() function to list down all the files and directories in the current directory:

#include<stdio.h>
#include<stdlib.h> //system( ) is included in this library

int main ()
    {
       int i;
       printf ("\n");
       i=system ("dir");// on windows
       // i=system ("ls"); on linux or unix platforms
       printf ("Returned value is: %d.\n",i);
       return 0;
    }

Another way

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C Programming Tutorial-5 - Data Types

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System( ) Function in stdlib.h Library

The C library function system() passes the command name or program name specified by a command to the host environment to be executed by the command processor. After the execution of the command it returns a value depending on the status of the execution. 

Declaration: 
To use this function,

 int system( const  char *command )    

         When you call this function, It  will invoke the command processor to execute a command. If the command execution is terminated the processor will trasnfer the control back to the program that has called the system command.

Parameters:
                 String containing name of system command or requested variable. 

Return Value:
            It will return an integer value, but the interpretation of that is system dependant. So, on different systems it gets interpreted differently. If an error occured in the program execution, '-1' is returned, Ootherwise it returns the status of command.

Click here to know how you can restart your computer using system function. 

As, always, Have a happy reading and Stay Awesome !

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Random Numbers Generation

Random Number generation is very important aspect of many games, Cryptographic key generation and for other programs with a lot of outcomes. Let us take a look at how we generate those in C language and PHP. 
Before you proceed to the explanation, you need to know that a computer can never generate a Random number. It has to use some parameters to generate that number and so such numbers can never truly be Random. So, they are called Pseudo-Random Numbers and this tutorial deals with these. 

We have a built-in library function namely 'int rand(void )' in C. It gives the random number between 0 and RANDMAX. 
The value of RANDMAX is entirely library dependent, but it is guaranteed to be at least 32767 on any standard library implementation.

Then how to get numbers in the range we want ?

Let's say we want numbers only in between 100 and 1000. It is not directly possible with rand().

We have to use some of our math skills here with the use of  the operator , modulo (%).

I am very sure that you have used this operator before. It gives the remainder when one number is divided by another. (Check this tutorial if you are unsure)

The classy part of using this operator is that the remainder is always less than divider. So, the expression "X % 101" (X is some number) gives always a number less than 101 and greater than or equal to zero.

Let's come to our question , to generate numbers in between 100(101=min) and 1000(999=max) ,we need the expression

                                      result = rand( ) % 899 +101

where 899 is max-min+1 (999-101+1).

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How to make Presentations online easily

Presentations Online Made Easy
   
Are you Thinking about giving an online presentation so that it will be available to world outside....then this post will help you.
    RVL.IO is the correct place to your presentations.It is just one way go after login. The various features it offers are....

• Easy Editior

  The rvl.io editor easy to use. Presentation styles are applied to the slides even while you are editing them them so you'll know exactly what you're doing and what you are going to get as your final output.  

• Writing and styling

  There's a wide variety of themes and transitions to choose from to make sure your presentation stands out from the rest and all the things move exactly in the you wanted them to.
  

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Why is porn so addictive ?

Why Is Pornography So Addictive ?

             
     Have you ever wondered why Pornography is so addictive and why many people get addicted to it! You will find out everything about this during the course of this article.
     25% of the total search requests to any search engine is porn, though some people believe that it is a lot higher than those numbers. It is also the 4th most common reason given by people for going to the internet. Some stats even show that pornography is affecting the life of every individual on the face of the planet either directly or indirectly.
         Pornography addiction is spreading like an epidemic these days. Never in the history of Internet was porn as crucial and active as is in these days and it has changed from a global phenomenon to a global problem very fast. Some stats are showing that Pornography constitutes to about
       
          Pornography is in many ways like a drug to the brain and with continuous exposure people find themselves addicted to it and their tolerance increases much like any other drug. Just like a drug it leads to the loss of control over oneself and compulsiveness to engage in the activity more despite of the negative consequences. Long term exposure may lead to permanent changes in the neural network. Dopamine (DA) is produced when ever we feel happy or accomplish something. This Dopamine sort of  re-wires your brain to perform the same action again and again thus leading to addiction. So, what is produced as a New-Normal becomes more and more evident and our brain/body craves for this Dopamine to regain that new Homeostasis (the new equilibrium). This Dopamine is produced during sexual excitement and now you know the reason for addiction. Along with Dopamine some other hormones like Serotonin, Norepinephrine

     The more of Pornography you watch the more Dopamine (DA) is released
 and the more you will be forced to watch again forming a 'Trap Cycle', coming out of which is very difficult. More over, the more you watch the more your tolerance increases and it becomes more difficult to get turned on by Reality. This may also lead to finding your mate less attractive.
                 
                 
                    Here Comes the GOOD NEWS. As our brain is a USE IT or LOSE IT system the addicted people still have a way out. The neural connections which you use tend to get Stronger and Stronger while those which you don't tend to get weakened and ultimately you tend to lose those qualities. So, Get more good habits and Avoid or Ignore the bad habits and you will come out of the Trap Cycle. Some experts view pornography as a dysfunctional view of society towards sexuality.
   
     Any way now you know that Pornography become a great problem to a person and it potentially capable of getting you in to troubles. So, beware and BE AWARE.  :)

                                                                                                                            

                           

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