Sunday, December 25, 2011

How to use your keyboard to move cursor?

Do you ever felt a mouse problem. Don't worry there this a way to use your keyboard to control the  cursor or otherwise you can use keyboard directly.

to do that just press left Alt + left Shift + Numberlock
then a dialogbox will appear and press Ok in that dialogbox
then it ready to control cursor to move just press numbers in numperpad to move in that direction


             
               7            8          9

               4                        6

               1            2          3

and to do single click just press 5. and to bring the default
just press Alt + Shift + Numberlock






How to make your own run commands?

The Run command on Microsoft Windows operating system allows you to directly open an application or document with just a single command. Just press windows key and R to open run in windows. However, it only works for some of the inbuilt Windows programs such as Command prompt (cmd), Calculator (calc) etc. So, have you ever wondered how to create your own customized Run commands for accessing your favorite programs, files and folders? Well, read on to find out the answer.

Create your own run command

Here for example i create a shortcut for Mozilla firefox. by this you will be able to open mozilla firefox by typing 'M' without quotes in run dialog box. Here is how can you do that.

1.Right click on your Desktop and select New -> Shortcut.

2. You can see a "Create shortcut" dialog box as shown

3. Click on “Browse”, navigate to: Program Files -> Internet Explorer from your Root drive and select “Mozilla firefox” as shown in the above figure and click on “OK”.

4. Now click on “Next” and type any name for your shortcut. You can choose any name as per your choice; this will be your customized “Run command”. In this case I name my shortcut as “M”. Click on “Finish”.

5. You will see a shortcut named “M” on your desktop. All you need to do is just copy this shortcut and paste it in your Windows folder (usually “C:/Windows”). Once you have copied the shortcut onto your Windows folder, you can delete the one on your Desktop.

6. That’s it! From now on, just open the Run dialog box, type M and hit Enter to open the Mozilla firefox.

To create shortcut for different application select different application when you browse

I hope you like this post!

Tuesday, November 29, 2011

How to detect if someone hack wifi ?

Internet is one of the source common to all like sun, wind etc. the first step towards Internet started in 1957, when Soviet Union decided to send a satellite 'Sputnik' to space. as a result of this project Americans started a research project called ARPA(Advanced Research Project Association). by this they wanted to exchange information through computers. The invention of packet switching  service, used in data transfer, was the turning point of this research. they introduced a network called ArpaNet. first only four computers connected to it but now it is uncountable. later it was renamed as Internet.

Now we will see about wifi. it is technology used to connect electronic devices wirelessly. a personal computer or any device equipped with wifi can connect to the Internet via wireless network access point or hotspot. you will setup a LAN(Local Area Network) to connect your electronic devices with internet. your routers will have a DHCP(dynamic host client protocol) table. The DHCP table is a guest list with every allowed piece of equipment. Each device connected to it will have a MAC(Media Access Control) address. it was assigned by manufacture but can be changed by users. MAC and IP addresses are usefull for us to detect unauthorized access to network.

 Is your network works slowly? there will be possibility of two problems one is hardware error for this you have to repair or need to buy new but is it possible for intermediate network loss? yes digital thieves or unauthorized access to your network due to their over use you could find a slow down in the internet speed. as wifi is a wireless technology you cannot found piggybacking physically. to found digital thieves You can use manual DHCP assignment. To do this, simply set your router's DHCP to the manual setting and enter in each of your computer's physical addresses. This will restrict your network to allow only those computers recognized by the router. if your computer experience is not enough to manual DHCP assignment you can use Internet monitoring software( for example nagios open source)  it watches and give you clear report about you wifi connection. Some routers have inbuilt application for monitoring. this software will show you the IP address of devices  connected to it by the count you can found weather stealing of internet is happening or not. other wise you can use your command prompt( start--> Accessories--> command prompt or windowskey + r ---> in Run type cmd and press enter/ok ) in the command prompt type ipconfig there you will find the information of devices connected to it with the count you can found the unauthorized access



If you found the stealing immediately switch off the router the switch on and change password immediately.

to download nagios click here





Saturday, November 26, 2011

Do you know how weak your brain is ?

Human Brain

As we all knew human brain is the complex structure in world. our brain is the main organ in our body it control all  the action of  our body. it compose of many parts such as cerebrum, cerebellum, hypothalamus etc. but our  brain is not much powerful to control or maintain more than one activity at a time because our brain is working with just 12volt which is equal to power of four LED bulbs. To prove that lets play a magic just watch the cards in the image. think any card from that and click the link below for further trick.  
in the image in the following link you will not find the card you thought click here
 you could amazed but that is not true because your mind is weak. check the cards above and in the new link you would find the cards changed completely but when you first seen that you would not. like that your brain is too weak but you couldn't  know that that is why the you didn't knew the weakness of your brain. you could have magics or magic shows those things are did with the help of  your brain weakness.

Thursday, November 24, 2011

How your clothes shine after wash?

We wash our cloth to remove dirt for next use. for that  we use soaps  or detergents to remove dirt. They not only remove dirt but some chemicals deposit in the small pits in cloths. the present detergents contain chemicals such as  stilbenes, fluorescent such as Umbelliferone which absorb energy from UV ray of spectrum and re-emit that energy as light so it will appear like a brighter one the same chemical and technology are used in paper brightening, textile brightening etc. In sunlight it will be better to see because of light indencity and presence of UV ray in sunlight. some animals like birds, cat , dog etc have fluorescent material  we could see this in their eyes during night