Tuesday 29 April 2014

Data Communication and Networking


Line Configuration

A network is a combination of more than one devices which connect from some medium (wire , wireless) called channel line configuration refer physical communication channel access method . Three types of access method are follows..
  • Point to Point
  • Multi Point

Point to Point

Communication line is not shared in point to point line configuration. A separate link used to connect each device in network. Advantage of point to point line configure is no congestion. Highly and sophisticate security implementation is possible.

Point to Point


The entire capacity of the channel is reserved for transmission between those two devices. Most point-to-point line configurations use an actual length of wire or cable to connect the two ends, but other options, such as microwave or satellite links, are also possible.


Multipoint 

Multipoint (Multidrop line configuration) Communication link is shared between all connected nodes from the network. Two types of multipoint line configuration are follows

Multipoint
Spatial Sharing: If several devices can share the link simultaneously, its called Spatially shared line configuration
Temporal (Time) Sharing: If users must take turns using the link , then its called Temporally shared or Time Shared Line Configuration

Sunday 27 April 2014

Gray Code | Binary to Gray Code and that to Binary Conversion

Binary to gray code conversion

     1. The M.S.B. of the gray code will be exactly equal to the first bit of the given binary number.

 
     2. Now the second bit of the code will be exclusive-or of the first and second bit of the given binary number, i.e if both the bits are same the result will be 0 and if they are different the result will be 1. 

     3. The third bit of gray code will be equal to the exclusive-or of the second and third bit of the given binary number. Thus the Binary to gray code conversion goes on. One example given below can make your idea clear on this type of conversion. 


Computer Generation

We have study history subject in our school days in those time history was common for all student but in college level its get divided on behalf of time like Ancient, Middle and Modern history. The Topic computer generation is also dividing on time. We read what type of hardware was used on time to time in computers .So Generation is computer history based on hardware. There are five generation

First Computer

There is no easy answer to this question because of all the different classifications of computers. The first mechanical computer created by Charles Babbage doesn't really resemble what most would consider a computer today. Therefore, this document has been created with a listing of each of the computer firsts starting with the Difference Engine and leading up to the types of computers we use today. Keep in mind those early inventions that helped lead up to the computer such as the abacus, calculator, and tablet machines are not accounted for in this document.

Thursday 10 April 2014

Graph Tutorial

Graph Theory

Bipartite Graph


A Graph G is divided into two finite Set U,V such that each vertex of U is connected to each vertex of V in  such a manner where no vertex is adjacent of same, i.e. U set vertex will not connected of any other vertex of U.

In bipartite graph it is necessary that each vertex must be connect with different color otherwise graph is not bipartite


Complete bipartite graph


In regular bipartite graph G(U,V) ,each Vertex U(n) and V(n) connected each other 





A complete bipartite graph is a graph whose vertices can be partitioned into two subsets V1 and V2 such that no edge has both endpoints in the same subset, and every possible edge that could connect vertices in different subsets is part of the graph. That is, it is a bipartite graph (V1, V2, E) such that for every two vertices v1  V1 and v2 V2, v1v2 is an edge in E

Friday 4 April 2014

Database Model

Hierarchical  
A hierarchical database model is a data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships: each parent can have many children, but each child has only one parent (also known as a 1-to-many relationship). All attributes of a specific record are listed under an entity type.


Example of a hierarchical model
In a database an entity type is the equivalent of a table. Each individual record is represented as a row, and each attribute as a column. Entity types are related to each other using 1:N mappings, also known as one-to-many relationships. This model is recognized as the first database model created by IBM in the 1960s.

Thursday 3 April 2014

Microsoft Office Shortcut Keys

Word

To do this Press Key As follows                                                                                                      
Switch to the next window.
ALT+Tab
Switch to the previous window.
ALT+SHIFT+Tab
Close the active window.
CTRL+W or CTRL+F4
Restore the size of the active window after you maximize it.
ALT+F5
Move to a task pane from another pane in the program window (clockwise direction). You may have to press F6 multiple times.
F6
Move to a task pane from another pane in the program window (counterclockwise direction).
SHIFT+F6
When more than one window is open, switch to the next window.
CTRL+F6
Switch to the previous window.
CTRL+SHIFT+F6
Maximize or restore a selected window.
CTRL+F10
Copy a picture of the screen to the Clipboard.
PRINT SCREEN
Copy a picture of the selected window to the Clipboard.
ALT+PRINT SCREEN
Research
Alt + Click
Macros
Alt + F8

Auto Text

Wednesday 26 February 2014

How to show swf(Flash) file in power point

Hi Folks Flash is an ultimate software nowadays for making animation. Mainly people used flash animation file in websites in swf format. If we could use these swf file in any other application like power point then it’ll make our world easier just take a look on following section and don’t tell me thanks……


For insert swf file in power point you need to show developer tab in ribbon control which doesn't visible by default.

  •        Click office button
    ·         Select power point option
    ·         Select Popular tab
    ·         Check  show Developer tab in the ribbon

Monday 17 February 2014

Save Flash(SWF) file from a website

Swf file is an abbreviation for shockwafe Flash object which is animated file run by flash player in browser window. Many times we want to save any website swf on our local PC for offline uses or any other personal uses. Here I am showing a way front of you that how can you download swf file its very simple just take a look.

In chrome 


 You must open chrome in developer mode for save swf file you can open this mode using Cntl+Shift+I or as in figure..


When you’ll click on developer tools following windows will be open

Thursday 7 November 2013

File Upload in PHP

Hi there
Uploading file on server is a process of getting data from user. you cannot ignore it and every web developer needs upload file.php has some built in function which helps to upload file take a look on following line..
Control
File up loader
Submit button
Code
<?php
       $msg="";
       if(isset($_POST['submit'])
      {
           if($_FILES['file']['name']!="")
          {
   $extnsn=end(explode(".", strtolower($_FILES['file']['name'])));
    if($extnsn=="rtf" || $extnsn=="doc" || $extnsn=="docx" || $extnsn=="txt" || $extnsn=="pdf")
    {                                                                
              if(($_FILES['file']['size']/1024)>1024)
             {
                      $msg="Sorry ! Maximum upload file  size is  1024 KB";
              }
              else
              {
                     move_uploaded_file($_FILES['file']['tmp_name'],"resume/".$r[0].".".$extnsn);
                      $msg="Thanks for uploading  file";
                      <?php
                             echo $msg;
                      ?>  

Saturday 12 October 2013

PHP form tutotial

An HTML form is a section of a document containing normal content, markup, special elements called controls (checkboxes, radio buttons, menus, etc.), and labels on those controls. Users generally "complete" a form by modifying its controls (entering text, selecting menu items, etc.), before submitting the form to an agent for processing (e.g., to a Web server, to a mail server, etc.)

Methods

The method attribute specifies how to send form-data (the form-data is sent to the page specified in the action attribute).
The form-data can be sent as URL variables (with method="get") or as HTTP post transaction (with method="post").
Notes on GET:
  • Appends form-data into the URL in name/value pairs
  • The length of a URL is limited (about 3000 characters)
  • Never use GET to send sensitive data! (will be visible in the URL)
  • Useful for form submissions where a user want to bookmark the result
  • GET is better for non-secure data, like query strings in Google
Notes on POST:
  • Appends form-data inside the body of the HTTP request (data is not shown is in URL)
  • Has no size limitations
  • Form submissions with POST cannot be bookmarked

How to Cancel PHP form submission using javascript


<?php 

$msg="";

if(isset($_POST['submit']))

{
$msg="ok";//put your code here
}
?>

Monday 30 September 2013

Save Image in Ms-Access 2003 and 2007 Using VB6.0

Hi There

 I was my dream to save image in access I tried many website and books but didn’t do that. Then I consider about memo field in access database. Memo data type is use to hold long amount of data in textual or binary format. Memo field become solution of my problem. I hope my work will help you just, do it in my way….

Design window

Friday 2 August 2013

Data Structure Using C++

#include<iostream.h>
#include<conio.h>
class node
{
int data;
node *next;
public:
node()
{
next=NULL;
}
friend class list;
};
class list
{
node *start;
public:
list()
{
start=NULL;
}

PHP Tutorial

Show Records Using Gridview

My table named users have three field (roll,name,city)

<style>

.font_color
{
color:#666655;
font-size:15px;
text-align:justify;
}

Monday 29 July 2013

How to Add SWF (Flash) File in Your Blogger

Hi folks

When I learned Flash i want to show it on my Blog but blogger  doesn't accept swf format. then
I find a solution form net.

  •   Upload your swf file online (On your domain) or any other free flash hosting site
  • Then copy the url
  • You need to go in html update mode 
  • Click on html as showed in picture place the following code and update

<object height="350px" width="400px">
<embed src="http://www.basantgroupofinstitution.org/swf/butterfly.swf" height="400px" width="400px">
</embed>
</object>

Sunday 14 July 2013

Flash Tutorial




Hi Friends I love animation and always want to make it flash make my dream true.
You can make animation using flash very easily just take a look on following Lines and images
What do you think movies are really includes moving object? No!
Movies are a collection of changing images, which plays more than one picture at a time. Being a Human we’re not able to see that differences.







Flash used this basic for make animation you have to work on frame which includes different  types of image and run it more than one image at a time.

Face Moving Expression

Friday 14 June 2013

Save Record on php server

Hi....

I spend lot of time to achieve this. I Searched many website but didn’t find a proper way which help me to do this. Then I use php manual which help me to find my solution.
Mostly we use  mysql_connect("localhost","root","") this will work on client side where you develop your application. You just have to change the format of  mysql_connect()  function and rest of the thing will be same as you used to on your client.
mysql_connect("localhost","Girfa","12345")
Girfa is your user name and 12345 is password of your website. Which you got when launch your website.

<html>
<head>

<title>Girfa Saving Record on PHP Server</title>
<?php
    if($_GET['name1'])
        demo();
    function demo()
    {
        $con=mysql_connect("localhost","girfa","12345") or die("Could not open the database ");
        mysql_select_db("basant_bsw",$con);
        $roll=$_GET['roll'];
        $nm=$_GET['name'];
        $ct=$_GET['city'];
        $quary="insert into stu values('$roll','$nm','$ct')" or die("error in making sql");
        mysql_query($quary,$con) or die("unable to run sql quary");     
       

    }
?>
</head>
<body>
<form name="form1" method="get" action="<?php $_PHP_SELF ?>">
     Roll :  <input type="text" name="roll" /><br />
    Name : <input type="text" name="name" /><br />
    City : <input type="text" name="city" /><br />
   <input type="submit" value="save" name="name1" />
</form>
</body>
</html>

Friday 3 May 2013

File Read/Write Using VB 6.0

 Dim filenm As Integer
    filenm = FreeFile
    Open "d:\demo.txt" For Input As filenm
    Dim str As String
    Do While Not EOF(filenm)
        Input #filenm, str
        Label1.Caption = Label1.Caption + vbCrLf + str
    Loop

   Open "d:\readme.txt" For Output As #1
    Print #1, Text1.Text
    Close 1

Appending text in a file without overwriting content


Open "d:\readme.txt" For Append As #1
    Print #1, Text1.Text
    Close 1 

Wednesday 10 April 2013

Connect VB 6.0 with Oracle and SQL Server

Hi...
Database is the heart of any business application. When we make any software then most of the  things floats near of database. As we know oracle is the most popular database in the world connecting oracle to your VB application is very simple simple. take a look on following and please don't tell me thanks..

  • Import a class reference for Project > References
  • Add Microsoft ActiveX Data Objecs 2.8 Library from references
  • Make an object of ADODB.Connection
  • Open DB Connection Consider the connection string
  • Rest of the things are same as you do with access database

Dim con As New ADODB.Connection
    con.Open "Provider=MSDAORA.1;User id=scott;password='tiger';Persist Security Info=False"
    con.BeginTrans
    con.Execute "insert into vb values(110,'niraj','lanka')"
    con.CommitTrans
    MsgBox "Saved"

SQL Server

Table Name Stu(Roll number,Name varchar2(20),City varchar2(20)), Import Microsoft Active Data Objects 2.0 from Project>References

Save Button Code


 con.Open "Provider=SQLNCLI.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=bsw"
con.BeginTrans
    con.Execute "insert into stu values(" & Text1.Text & ",'" & Text2.Text & "','" & Text3.Text & "')"
    con.CommitTrans

Friday 5 April 2013

Photo Shop Tutorial


Hi there....
I love photoshop because its provide wing to my imagination. I am taking lots of advantage of powerful tools of photoshop.You can enhance quality of your designing using this tutorial . I do not have any specific degree about photoshop I just make this tutorial which help you to make some type innovative graphics.Now Get start.....
Text Effect
  
Photoshop provide separate tool for text which create a separate layer when you write text.

Text Effect with hole
Develop By Raj Kumar
  • Type your text
  • Add a layer up side of text layer
  • Click on text layer and newly added layer border with alt key. It’ll merge text and normal layer. Now you can use brush tool for color (Because brush tool can not be apply directly on text layer)
  • Apply shadow  and other effect using Layer style by double click on text layer
  • Apply mask on text layer
  • Choose brush make high percentage of hardness and opacity
  • Move brush on text 

Tuesday 12 March 2013

How to stop mouse right click on a webpage

There are many cases when we don't allow users to see our source code.Enabling source code by right click provide option to users to load images of our site and see logic we you used to make your website.You can disable right click using java script paste the following code on your head section and see the magic
Paste this code on header section

<SCRIPT LANGUAGE="JavaScript">  
<!-- Disable  
function disableselect(e){  
return false  
}  

function reEnable(){  
return true  
}  

//if IE4+  
document.onselectstart=new Function ("return false")  
document.oncontextmenu=new Function ("return false")  
//if NS6  
if (window.sidebar){  
document.onmousedown=disableselect  
document.onclick=reEnable  
}  
//-->  
</script>