Web Hosting Service

A web hosting service is a type of Internet hosting service that allows individuals and organizations to provide their own website accessible via the World Wide Web. Web hosts are companies that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. Web hosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation.

The scope of web hosting services varies widely. The most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) or a Web interface. The files are usually delivered to the Web "as is" or with little processing. Many Internet service providers (ISPs) offer this service free to their subscribers. People can also obtain Web page hosting from other, alternative service providers. Personal webhosting is typically free, advertisement-sponsored, or cheap. Business web site hosting often has a higher expense.

Single page hosting is generally sufficient only for personal web pages. A complex site calls for a more comprehensive package that provides database support and application development platforms (e.g. PHP, Java, Ruby on Rails, ColdFusion, and ASP.NET). These facilities allow the customers to write or install scripts for applications like forums and content management. For e-commerce, SSL is also highly recommended.

The host may also provide an interface or control panel for managing the Web server and installing scripts as well as other services like e-mail. Some hosts specialize in certain software or services (e.g. e-commerce). They are commonly used by larger companies to outsource network infrastructure to a hosting company.

Types of website hosting are:

Free web hosting service

Shared web hosting service

Reseller web hosting

Virtual Dedicated Server

Dedicated hosting service

Managed hosting service

Colocation web hosting service

Clustered hosting

Grid hosting

Home server

Device Drivers

In computing, a device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device.

Drivers typically communicates with the device through the computer bus or communications subsystem to which the hardware is connected. When a calling program invokes a routine in the driver, the driver issues commands to the device. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. Drivers are hardware-dependent and operating-system-specific. They usually provide the interrupt handling required for any necessary asynchronous time-dependent hardware interface.

A device driver simplifies programming by acting as an abstraction layer between a hardware device and the applications or operating systems that use it. The higher-level application code can be written independently of whatever specific hardware device it will ultimately control, as it can interface with it in a standard way, regardless of the underlying hardware. Every version of a device, such as a printer, requires its own hardware-specific specialized commands. In contrast, most applications utilize devices (such as sending a file to a printer) by means of high-level device-generic commands such as PRINTLN (print a line). The device-driver accepts these generic high-level commands and breaks them into a series of low-level device-specific commands as required by the device being driven. Furthermore, drivers can provide a level of security as they can run in kernel-mode, thereby protecting the operating system from applications running in user-mode.

Everyday some new hardware device is released in the market or the Microsoft corp. releases some drivers for every version of Windows possible. It is never possible to keep oneself updated with all the drivers possible. There are some devices with which the device drivers are not supplied like HP, Dell etc. For these one can easily get hp drivers or dell drivers.

It is very important for a computer user to keep his/her computer with all the latest drivers possible because this will ensure the device's better performance and will also enhance the device capabilities.

The Global Positioning System

The Global Positioning System (GPS) is a global navigation satellite system (GNSS) developed by the United States Department of Defense and managed by the United States Air Force 50th Space Wing. It is the only fully functional GNSS in the world, can be used freely, and is often used by civilians for navigation purposes. It uses a constellation of between 24 and 32 Medium Earth Orbit satellites that transmit precise microwave signals, which allow GPS receivers to determine their current location, the time, and their velocity. Its official name is NAVSTAR GPS. Although NAVSTAR is not an acronym, a few backronyms have been created for it.

Since it became fully operational in 1993, GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, and hobbies such as geocaching. Also, the precise time reference is used in many applications including the scientific study of earthquakes. GPS is also a required key synchronization resource of cellular networks, such as the Qualcomm CDMA air interface used by many wireless carriers in a multitude of countries.

Now let us come to the real time applications of GPS, when it is used or rather misused by the normal people. Do you know that you can track anyone in the world, it maybe anybody, your friend your enemy anyone, and know in which part of the world that person is in with the help of GPS Tracking. And the irony is that even you can be tracked by some other person and he or she can know where you are! 

Some of the basic things that may come to one's mind is that is suppose you are the employer and your employee calls up and tell you that he is sick and won't be able to come to office today, then what would you do, just switch on the tracking device and maybe you would find out that he is in a pub sipping on some drinks.

SImilarly you can even track your spouse and check whether she is lying to you or even your kids and to see where they are and if they have gone to school or they are just fooling around in a playground. And whats the mos interesting is that if you have the tracking device on your pet then you can find him out even when he gets lost. Sounds Strange! But that is absolutely true. You can do wonders with this GPS.

On one hand GPS can be a boom and it can also bring upon doom, because if you keep on suspecting, then you may become vulnerable of your near and dear ones going away from you. But that possibility is very bleak, and GPS acts as a help more than anything else.

Some devices that are present already in the market are GPS devices ehich give satellite images of roads to help us navigate better. Nowadays even mobile phones are equipped with this technology and we can navigate much better and easier and in any place of the world if we have this feature on our phone. We have also seen in many hollywood flicks that they place a transmitter on a person and keep on tracking him throughout the world. This seems absurd but can actually happen.

Make Notepad Write On Its Own...!!!

A Notepad that writes on it own is for sure a very weird thing but very funny in the same time. And if you change the icon of the file you create with the Notepad's, and replace the Notepad icon from your friend's computer with this file for sure you will create a great prank.

1. Open Notepad.

2. Copy this script in Notepad:

set wshshell = wscript.CreateObject("wscript.shell")
wshshell.run "Notepad"
wscript.sleep 2000
wshshell.AppActivate "Notepad"
WshShell.SendKeys "H"
WScript.Sleep 500
WshShell.SendKeys "ell"
WScript.Sleep 500
WshShell.SendKeys "o "

The little program will make your Notepad type "Hello". You can always make your custom message by replacing the letters between the " " signs with the ones you want.

You can add more lines like the following ones for more letters:

WScript.Sleep 500
WshShell.SendKeys "insert here your letter of group of letters "

3. Now save the file. Go to File->Save as. Type the name of the file with the extension .vbs. For example if you want to choose the name Notepad, type Notepad.vbs. Also be sure that File type is All files not Text file!

The file will look like this.

4. When you doubleclick on it, Notepad will start typing letters.

Don't forget to comment about this post and my blog and tell me if you liked it and if I get your responses I'll bring you some more cool tricks...!

Make A Computer Desktop Prank

If you want to make a joke to your friends to go crazy this is the right article for you. Change their computer icons with some fake ones. And when he click on them nothing happens.
Just follow the steps below to perform your prank.

1. Make a Print Screen of your desktop. You can use the Print Scrn button on your keyboard.

2. Open MS Paint go to Edit and choose Paste.

3. Go to File-> Save as and save the picture.

4. Now set the saved picture as the Desktop Wallpaper.

5.  Right click on an empty place on your desktop and choose Arrange Icons by.

7. Now click on Show Desktop Icons and make sure it is unchecked.

8. Your real icons will disappear and will remain only the screenshot you have made.

You won't be able to open any icon. And this for sure will drive mad the owner of the computer.