Dangling pointer problem in c programming:

1. Dangling pointer:
If any pointer is pointing the memory address of any variable but after some variable has deleted from that memory location whilepointer is still pointing such memory location. Such pointer is known as dangling pointer and this problem is known as dangling pointer problem.
Initially:

Later:

How to reverse a string in c without using reverse function

#include<stdio.h>
int main(){
    char str[50];
    char rev[50];
    int i=-1,j=0;

    printf("Enter any string : ");
    scanf("%s",str);
 
    while(str[++i]!='\0');

    while(i>=0)
     rev[j++] = str[--i];

    rev[j]='\0';
 
    printf("Reverse of string is : %s",rev);
 
    return 0;
}

Sample output:
Enter any string : ramprofessionals.blogspot.com
Reverse of string is : moc.topsgolb.slanoisseforpmar

INVENTORS OF COMPUTER HARDWARE:

(1) Key board — Herman Hollerith, first keypunch device in 1930’s

(2) Transistor — John Bardeen, Walter Brattain & Wiliam Shockley (1947 - 1948)

(3) RAM — An Wang and Jay Forrester (1951)

(4) Trackball — Tom Cranston and Fred Longstaff (1952)

(5) Hard Disk — IBM , The IBM Model 350 Disk File (1956 )

(6) Integrated Circuit— Jack Kilby & Robert Noyce (1958)

(7) Computer Mouse — Douglas Engelbart (1964)

(8) Laser printer— Gary Stark weather at XEROX in 1969.

(9) Floppy Disk— Alan Shugart & IBM( 1970)

(10) Microprocessor — Faggin, Hoff & Mazor – Intel 4004

Solve this puzzle... ?

A shopkeeper has 3 bags of coconut each containing 30 coconuts. While travelling from one place to other, he has to pass 30 toll-booths. At every toll-booth, he has to give coconuts equal to number of bags he have. After passing all 30 toll-booths, how many coconuts will be left with the shopkeeper?

Reply fast...

Do You Know Who is He......................

RIP Douglas Engelbart, Inventor of computer mouse, dies at 88

Guess Which OS?

Wow Transparent

Java progaram to generate pyramid

public class JavaPyramid4 {

        public static void main(String[] args) {
             
                for(int i=1; i<= 5 ;i++){
                     
                        for(int j=0; j < i; j++){
                                System.out.print(j+1);
                        }
                     
                        System.out.println("");
                }

        }
}

 Output of the above program would be
*
**
***
****
*****

Increase Virtual RAM - To Make Your System Faster

Follow the steps given below :-

1) Hold down the 'Windows' Key and Press the 'Pause/Break' button at the top right of your keyboard.
Another way is Right-Clicking 'My Computer' and then Select 'Properties'.

2) Click on the 'Advanced' tab.

3) Under 'Performance', click 'Settings'.

4) Then click the 'Advanced' tab on the button that pops up.

5) Under 'Virtual Memory' at the bottom, click 'Change'.

6) Click the 'Custom Size' button.

7) For the initial size (depending on your HD space), type in anywhere from 1000-1500 (although I use 4000), and for the Maximum size type in anywhere from 2000-2500 (although I use 6000).
 Click 'Set', and then exit out of all of the windows.

9) Finally, Restart your computer.

10) You now have a faster computer and 1-2GB of Virtual RAM..!

New License keys to useful software's :

MICROSOFT OFFICE 2013
9MBNG-4VQ2Q-WQ2VF-X9MV2-
MPXKV

AVG INTERNET SECURITY 2013:
Licence: 8MEH-RFR8J-PTS8
Q-92ATA-O4WHO-JEMBR-ACED

Office 2013:
B9GN2-DXXQC-9DHKT-
GGWCR-4X6XK

Blue Screen Error- How to Fix it

when i posted a joke on blue screen, many fans asked me the solution to it. here are some tips to get rid of it.

Blue Screen = The Most Irritating Error Face by Windows Users.

Did you ever got stuck with this type of Error ?
Most of will answer it YES.

What is Blue Screen of Death (BSOD) ?

Blue screen of death is nothing but an error Shown in Microsoft Windows Operating Systems which Stops Further Operations.

Why BSOD Error is Caused ?

This error is Generally Hardware or Drivers Related.causing the Computer To stop Responding And prevents Damage to the Hardware And data.
BSOD Looks Like the Below Picture. Manny Windows Users Must be Familiar With This.


How To Fix BSOD :
As I said There are several Reasons For BSOD, Unfortunately There is no Particular solution but The Following Tips And tricks Can Help you To get Rid Of it.


1. Remove Startup Programs That Starts Will System Booting.

What happens is when you System Boots, Many Other apps try To load at the same time whill may result in to BSOD. so Remove Unwanted Programs On startup.

How To Remove :
Press Windows Key +R
Run Box will appear. Type "msconfig" and Hit Enter,

Click on Startup Tab and remove all Unwanted Programs and click on apply.
It may ask you to restart your system, So restart it .


Removing programs at startup will fix your problem.

2.Uninstall Softwares:
Many Times while installing a softare A blue screen occors with a message that says, The Software that you are installing is Culprit . Verify all the changes that you made to your system and reset Them. Uninstall the installed Application it will help you to a great extent.

3. Resetting your Hardwares And Drivers :In some cases Due to Faulty Hardware connection it show the blue error screen. You can prevent this by ensuring you all hardware connection such as external ports,motherboard pins are set correctly.Bad drivers may also cause the same problem.Keep your drivers up to date.

Above tips will definately help you to get rid of Bluescreens.


Windows 8 users May have Experienced a New Blue screen:
In windows 8 it will Tell you About the error and sad Emoticon At the top of the text .(its BSOD)

Like This if it was Helpful..