EmbedPC

Want to manipulate your PC or laptop's power policies using Windows XP registry? The steps are simple and enable you to quickly modify the power policy of your PC or laptop with a double click. Of course you need to know what you are doing to your registry which is what this article is about. Before we go on to talk about modifying Windows XP registry power policies, please note that you need to make sure that the power schemes are set according your preferences. To do so, right click on your desktop and click on "Properties". Go to the "Screen Saver" tab and click on "Power" button. Then you can start to modify the power schemes to suit your preference. The steps are particular to XP but Vista...

How many times you have been at school or work and wanted to browse your favourite sites, but guess what, they were blocked! Happened a lot to me, or at least until I heard of web proxies.They are web sites that let you unblock sites by your administrator. How is that possible? Basically they retreive the page you want to surf and display it for you.So, you connect to the web proxy, and it connects to the blocked site.It's like a person in the middle. For what are they used else? Web proxies, besides unblocking unblock sites, p.s myspace unblock, they are used to protect your privacy.That means that you dont show your IP to the sites you connect, but show the proxies IP. How can I find them? Just...

This week has provided me with a few challenges. I lost months of work in one fell swoop when my computer crashed. Having not backed up my system this meant that I lost all of my music, videos, photos, products, e-books and documents. This constituted several thousand hours of work and memories saved onto my hard drive. Apart from the loss of my work came the added expense of replacing my computer. This served as a hard hit initially. It is fair to say that it took a few days to fully process the learnings of this. Then I had my epiphany.... All of my life I have had great ideas and been good at carrying them out to about 80% of completion before a much better idea comes along and shifts my...

It can be really annoying. You have just got off the plane, booted up your lap top and set the clock to local time. Yet all your appointments suddenly move, not just the ones on that side of the ocean either, when you return home and reset the clock the appointments refuse to go back. This problem occurs because of the way a computer handles time. In general computers ignore time zones and base their time on UTC (Coordinated Universal Time) the international time standard. Time can cause havoc with computers, not just with lap tops either. Computers all over the world need to be telling the same time particularly if they have to perform time sensitive transactions or need to keep their networks...

An MKV file is an audio / video container. It's similar to AVI and others but it has some other features. Before you use it, you should understand what it is. What is an Audio Video Container? A container is a format that can store audio or video files. Using the format, a user can burn (record) a movie onto a disc. This isn't the same thing as a codec. A codec is used by the video formats to play back videos. Features The format supports chapter entries and subtitle streams. It's extendable (in modular terms) and lets you choose audio streams. The MKV file also supports Web streaming. Using this format you can watch streaming video or audio. It also has a menu feature similar to what you see on...

Computer parts layaway will definitely help you get what you need without the expensive up-front payment. This might take longer than a regular credit card purchase, but at least you don't have to worry about high interest rates. That's why you should immediately get a computer parts layaway program the moment you see signs of hardware system problems. Dell, HP, and Apple computers are one of the most popular products today. These high-end products are quite durable and could last for a good number of years, around 3 years or so - if proper care and maintenance are taken into consideration. And when your computer starts to fail, you know that it's time buy fresh parts for your computer. That could...

Microsoft Office 2010 has been a welcome release from Microsoft this year. It is the successor to Microsoft Office 2007, and contains lots of new features. The Microsoft Office Suite 2010 contains a highly polished interface, with good colors and a great work desk. This features also contains a good troubleshooting program, offering extended file compatibility and a much better experience for its users. The Office Suite 2010 is also available for Windows XP Service Pack 3(32bit), Windows Vista Service Pack 1 and Windows 7. For the first time ever, a 64 bit version of Microsoft Office has been made available to users with the introduction of the Office 2010. The feature also marks the introduction of...

So you think you want to develop a ZigBee application, but you have some questions. What's important in a ZigBee development? What tools do I need? What steps are involved? How much time will it take? What kind of investment is required? What are the unforeseen questions? The tips presented here can't answer all of these questions for everybody, but they will provide a tutorial for the development of your ZigBee application. The first and perhaps most important step in developing your application is to determine whether ZigBee is appropriate for your product. The ZigBee radio standard boasts many advantages over other wireless options. With a public ZigBee profile and conformant platform...

Database corruption in Microsoft server is a very common occurrence. When it happens, the Information Store is one among the most usually affected components. The corruption takes place in generally in Pub1.edb or Priv1.edb files of Microsoft Exchange database. In case of corruption to the Microsoft Server Store, you can not access your critical emails, notes, contacts and other data from mailbox and come across data loss situations. In these critical circumstances, it becomes essential to repair and restore damaged database using appropriate Exchange Server Recovery solutions. When Exchange database server and Information Store corruption occurs, you might come across below symptoms: - Information...

First, when you enter the router's web-based setup page, you will be asked to log in. The default Linksys router password would be "admin". You should change the default Linksys router password so that you can prevent outside users from using accessing to your router's security, as well as to enable remote management, which is to access to the router without it being presently attached to the computer. In order to change the router's password, you can either run its CD, or change it from the router's web-based setup page. This article will guide you to changing the password the latter way. First, you must make sure that your router is well connected to the computer through one of the four Ethernet...

Anyone who has used computers based on Windows operating systems might have come across the svchost.exe errors. It sure is a very frustrating glitch since it slows down your computer considerably. This issue can be caused due to a variety of factors. The most common problem observed is caused by the svchost viruses. Computer viruses are programs that can seriously affect the operating systems in a very short time. To understand the effects of these viruses to your operating system, one should understand what the file really is. The svchost.exe virus is Windows operating system file which is responsible for the smooth start up of your operating system. It is quite a common fact that various programs...

Friendster login problems are common and Friendster proxies are not an uncommon solution. I am sure that many of you reading this have experienced that awful moment when your login has failed, or you can't access the site, and you have tried again with the same result. Here are the three major reasons for this, and what to do overcome the problem. 1. Wrong Friendster Login Used In today's world when you have dozens or more user names and passwords to remember, it is easy to forget your login, or to confuse one with another. It is stupid to use the same logins for all your password protected websites and pages, and occasionally you get it wrong. This is the simplest of the login problems to resolve...

Are you looking for fresh ideas on how to make your projects as appealing as possible? It is about time to get yourself used to the idea of using free movie sound effects for your projects. Sound effects are great add-ons to any media material that you are able to find. From the Internet, videos, websites and even television, the use of sound effects have always been a popular way to make viewers relate to the media presentation. Imagine the difference when you see a gun fired by the James Bond, but with no sound effect at all. It will barely give you an impression that the gun has been fired. A gun-firing sound effect will thus make the entire shooting scene more realistic and hence bringing the...

The PSP is one of the most popular portable gaming systems available today. It will be able to provide you with rich graphics and it will also enable you to play with your favorite games wherever you go. However, you need to remember that the PSP is more than just a portable gaming device. It is also a multimedia player where you will be able to use to listen to your favorite music as well as watch your favorite movies. If you have a DVD movie collection, then you may want to try putting some of it in your PSP. It will provide you with high quality entertainment for many hours. However, you first need a DVD movie to PSP movie converter software program. Once you have this installed in your computer...

The decision around whether or not to Virtualize the IT environment is not an easy one. There are so many factors to consider, so many questions to ask, and so many myths to disperse. * Will my existing infrastructure be suitable for Virtualization? * How do I know how many physical hosts I will need? * What is the best option for storage? * Will my critical applications be at risk? * Will the initial outlay be too high to justify the later cost savings? * How will I convince the board to invest in the project? Ultimately, only one thing will answer all these questions and enable an informed decision to be made - The Capacity Plan. Interestingly though, the capacity plan itself raises many questions...

Many computer users are not aware of it, but most of the time resolving computer health problems simply means cleaning the registry. But the registry is often the most neglected area of the computer when it comes to maintenance and resolution of computer issues. You may ask is there such a thing as a free registry repair that actually works? The answer can be both a yes and a no. There are several free registry repair software programs that you can easily download from the internet, but not all of these software programs can resolve issues in your registry. There are programs that will just scan your registry for errors, identifies them, fix some of them, but ask you to upgrade to the full version...

Are you getting frustrated constantly encountering ActiveX control problems as you surf with the Internet Explorer web browser or when you use an ActiveX plug-in with Mozilla Firefox? It usually happens right when you're in the middle of something important, and the last interruption you need is being bombarded by a host of error messages. You will most commonly encounter this error when you are trying to install or load a program onto your computer while your web browser is open. ActiveX attempts to load other software applications in the browser to help handle necessary information that is being processed, transferred, and distributed over the internet through different programming languages...

The Apple iMac (27-inch) is the apple many people would become sinners for. It is the all-in-one desktop that brought about a revolution among computers, and no matter how many similar computers were released before, iMac is the only one that has been able to match style and performance, and incorporate both into one body. On the other hand the HP Touch Smart looks good at first glance, but can we really compare it to the iMac? Let us start with its touch screen, which is probably the best on the market. But is it everything to have a touch screen? We do admit that it is interesting playing with it, but let us go a bit further. The HP Touch Smart really does look like a capable enough, all-in-one...

A Wi-Fi scanner is capable of playing multiple roles. Certainly, the main usage of having such a scanner is to detect reliable access points in a specific geographical area. Its sensing ability has been deemed to be way more advanced than other wireless antennas or adapters. This wireless network scanner is capable of detecting networks in further distance with stronger signal strength. This device is directly linked to the computer so it should be stationary of its position to identify the potential networks in an office or home estate region. The Wi-Fi scanner can also be used to recognize a specific geographical district of where the user's single network could possibly extend to. It is shrewd...

Well, just in case you are new to the word "telnet"; telnet is an Application Layer protocol that can be used to make direct connections (using telnet sessions) to a Cisco router or from a Cisco router. It doesn't matter whether you're using the IPv4 protocol or the IPv6 protocol, "telnet" performs in the same manner. A network administrator can use "telnet" to make the following different types of direct connections (telnet sessions): - Host to Router - Router to Router - Router to Host In this article, I'm going to show you how to enable "telnet" on a Cisco IPv6 router, so you'll be able to directly connect to it via telnet sessions and I'm also going to show you how you can initiate a "telnet...

POS or Point of Sale refers to the system that records financial transactions in stores and restaurants. It could either be an electric cash register or an integrated computer system that records the data pertaining to the sale of goods or services. A typical POS system consists of a cash drawer, receipt printer, monitor and input device. POS systems can be purchased as an entire unit or as individual components. Prices vary widely depending on the brand and technology. We have put together a guide explaining the different components of point of sale hardware. * Computer: This is the main component of a POS system and it runs the software. It is advisable to use your POS computer exclusively for the...

While it may seem like you would never be able to access an Internet signal while out in the middle of the ocean, with satellite Internet ships can now obtain Internet access, VoIP international phone calls and videoconferencing on board. Read on to learn more about how yachts, transatlantic cruise ships and other naval vessels can all obtain satellite Internet access while out at sea. With satellite coverage now stretching across the entire globe, it's possible to obtain broadband IP connectivity at nearly any point on Earth (including on a ship out at sea), with content delivered at very high speed. Instead of using telephone lines or cable systems, satellite Internet uses a satellite dish for two...

Although caller ID spoofing has been around for several years, it is still fairly unknown to most people. Caller ID spoofing is the act of changing what appears on a person's call display or caller ID when you place a call to them. You manipulate the phone number so that, instead of blocking your telephone number or revealing your real one, you choose any number you want to display. Sites such as and have brought caller spoofing mainstream. Now even regular individuals take advantage of its uses. In fact, a wide variety of individuals use caller ID spoofing including celebrities, bounty hunters and other law enforcement, VIPs, and professionals. Bounty hunters and other law enforcement officials use...

The root of a Windows XP shutdown problem can be traced to several issues. Windows as an operating system has been stable at best but is known to have many problems within its shell. In fact, Windows XP is built on the kernels and core of many of the previous versions of Windows, so the problems that may show up would have shown a similar pattern in older, more antiquated versions of Windows. One of the possible problems that can occur is a damaged exit sound file. If you had selected a specific wave file to be played when Windows shutdown to replace the stock sounds (that you didn't like), then the problem might lay in the fact that the wave file is either corrupt or has a bad file root directory...

Occasionally HP printers can run into an issue known as a PCL XL error. Apparently, the PCL XL error makes it impossible to print certain documents. It can occur intermittently or with every request to print. Fixing it is key to getting the printer to work correctly again. Different Types of PCL XL Errors This type of error indicates an interruption in the print stream: for some reason, the printer sees the stream as corrupt. PCL XL refers to a "language" that the computer uses to communicate with the printer. HP forums describe it as being "highly structured," which is the reason that any little disturbance will be picked up by the printer and keep it from doing its job. If the user only...

While sending files over the internet to other recipients, there are lots of restrictions if you are using email. Many websites allow limited file size to upload to their servers while sending through email and even some websites do not allow files of particular formats. This becomes annoying sometimes when you need to upload and send any file urgently. In such situation, it is of no use wasting time on searching for help on such websites. When you know that the file which you are sending to the recipient is a big file then at that instance you should use other service for transferring this data over the internet. You will find hundreds of other websites who offer file sharing through internet and...

Technology software has made its mark on several different areas and engineers, manufacturers and even those people who classify themselves as design professionals understand how important the right CAD training can be. For people who aren't familiar with this branch of online craftsmanship, AutoCad was first developed in 1982. It was a startling advancement for the time because it was one of the first software programs that aided in both two-dimensional and three-dimensional design on a personal computer. Of course it caused quite a stir in several different areas because most of the other programs at the time needed to be hooked up to a mainframe. Today AutoCad software is still available in both...

What is NV4_Disp.dll Blue Screen Error? NV4_Disp.dll Blue Screen error is very serious issue that most of the Windows user's face today. This error is shown typically on the blue screen and is caused when the NVIDIA graphics driver goes on infinite loop while trying to use the NV4_Disp.dll file from the system. In simple words when the NVIDIA graphic drivers does not functions properly, takes all the memory of PC and prevents the computer to operate correctly, this blue screen of error message is displayed. How to fix NV4_Disp.dll Blue Screen Error? Since this error message has occurred due to the infinite loop where computer continuously performs a task over and over again and does not terminates...

Event Log, Audit Log and Syslog messages have always been a good source of troubleshooting and diagnostic information, but the need to back up audit trail files to a centralized log server is now a mandatory component of many governance standards. Contemporary, SIEM solutions need to be • flexible enough to cater for all devices, operating systems, platforms, databases and application • sufficiently scalable to cope with thousands of devices generating millions of events • intelligent, correlating events and identifying true security incidents only so resources can focus on genuine threats and attacks. This is an introductory 'Top Ten of Audit Trail and Event Log Monitoring'. 1. Security...

What is Information Technology Information technology is the use and application of the computer system to process, manage and distribute information. Use of IT in this context involves both the hardware and software components. Some major advantages of Information Technology in various areas are listed below: Speed and Accuracy in information Processing With the help of IT more work can be done by individuals, businesses, services and government organisations. Function enhancement programs such as word processors, database programs and spreadsheets can get work done in less time with increased accuracy and efficiency. Global Social Interaction IT has made global social and cultural interaction very...

There are several reasons to prove the effectiveness of the digital printing. The best way to find out is to try it. Every one is familiar with the digital printing.Nowadays birthday party invitations is the most common use seen among youngsters. Envelopes or brochures are yet some another things which can be easily noticed. You can`t ignore the growing popularity of the digital printing process. Everyone is busy printing something or other digitally but still we want reasons to convince ourselves about its effectiveness. Haven`t you printed your e-ticket for your meeting next month digitally? Where the printing industry is concerned let me tell you that such type of printing saves a lot of money...

Mathematics is applicable in various traditional fields of engineering: mechanical and electrical engineering are among them. Mathematics is used in computer engineering too. Mathematical logic is used in the decision making, so it is used in computer programming. As Venn diagrams are helpful in understanding the concepts of logic, they are also helpful in the programming. For instance, De Morgan's laws are used in writing statements involving decisions and Venn diagrams are helpful in understanding these laws. Calculations are also important in the science of computers. The text you read on the computer screen is presented in a particular format. Calculations are certainly needed for these...

For those of you who haven't seen SAS in a few years get ready for some culture shock. SAS has extended its flagship programming language with all of its lovable procs and data steps into a web-enabled reporting and data management juggernaut. Before you go and get all bent out of shape that your good old-fashioned SAS skills are obsolete - don't worry. Base SAS coding can still be used in several places and through various components of the EBI suite - more on that later. First you might wonder how the EBI suite is packaged. Essentially it is a server-based product that comes equipped with several small-footprint dot net and java clients. The main portion of the server piece is essentially a souped...

During October 2006, several tech companies, mainly Nokia, have announced that they will be launching new wireless networking technology called Wibree. However, Wibree will not be related to current Wi-Fi technologies, due to the fact that it will not have the range and bandwidth that Wi-Fi has. Instead, Wibree capacities will be more comparable to Bluetooth, with a range of approximately 30 feet (10m) and similar bandwidth as Bluetooth (1Mbps). The advantage of Wibree over Bluetooth is that it is a lot more power efficient, which makes it ideal for use in smaller and less costly devices than the ones currently using Bluetooth. The immediate uses once the standard is approved is to connect...

I can only tell you about my experience from switching to a Laptop. I now have the ability to move from room to room in my house while carrying my laptop with me, instead of being stuck in a room for hours on end with my PC. My Laptop is wireless which is great because I can connect to the Internet from any room, even the garden. Also, there are many places where you can take your laptop that offer wireless internet access free, cafe's, restaurants, and even at holiday locations. So you can sit with you coffee and carrot cake surfing the internet or doing your homework. There is the issue of not being able to upgrade a laptop but that's not strictly true - you can upgrade your Memory (RAM). So...

With a reasonable price tag of around $900, the new Dell Inspiron 545 is one of the best budget desktops to ever come out of the Texas-based company's kitchen. This device has enough power to be able to serve as a home's primary computer system. Here's an in-depth look at the Inspiron 545. The Look The Inspiron 545 pretty much looks like any other standard desktop computer, with a sleek and shiny mini tower on board. However, customers will be glad to know that they can choose from eight different and wonderful color schemes to fully customize the Inspiron 545 - Formula Red, Flamingo Pink, Plum Purple, Tangerine Orange, Spring Green, True Blue, Pure White, and Piano Black. Inside its massive mini...

Which Linux distribution (distro) or Linux Operating System is the best? In my opinion, there is no definite answer. There is no 'best' distribution that suit everyone and level of expertise. From my past experiences, the 'best' Linux distribution is distribution that your comfortable-with. For example, I am a Red Hat Linux user since ver6.x. Since, I am so familiar with Red Hat-based distributions, I feel a bit hard for me to switch to Debian-based distributions. Again, this is nothing to do with learning curve is just my personal preference Perhaps, most of the Linux gurus might already know the answer well for choosing correct Linux distribution for themselves. However, if you are new to Open...

Computers today may look very different to those of 20 years ago. But behind the scenes not much has really changed. Sure, they have shrunk a lot in size and they whiz along so much faster than they ever did. However the basics have almost stayed the same and that is what we are going to look at here in this article. The aim is to allow you to identify which bit is causing the problem so you know what to look for. The original modular makeup of a Central Processing Unit (CPU), Display Screen, Input Device (keyboard/Mouse), and Information Storage Device (Ram Memory/Disk Drive etc), plus the Power Supply has not changed. All these building blocks are still needed today in various forms. So how does...

Companies are always in search for ways to cut down on expenses so that they can increase their savings and their efficiency. Some of the more popular ways that companies cut costs is by recycling paper and using energy efficient office appliances. Another way that companies can save money is by using more cost efficient ways of getting printing jobs done. Using laser printers instead of inkjet printers makes printing documents cheaper. However, companies can go a step further in reducing printing costs by buying bulk laser toner for their printing needs. What is bulk laser toner? Bulk laser toner consists of the usual toner refills that are available. However, companies can buy a bulk supply if...

There is no doubt that we are more connected today than at any time in our history. It is possible today to be connected to hundreds and even thousands of people at a time and to constantly keep everyone in our network up to date on our activities. Today's technology makes it possible to never be out of touch. Yet, it seems the more technology enabled we become the more disconnected we are. Years ago if you wanted to keep in touch with someone you needed to make a telephone call or write to them one at a time. In order to make that call you needed to be somewhere that you could use a landline and if you didn't reach them, you may be able to leave a message if they were fortunate enough to have an...

So your tired of your computer starting up slow and you want to know how to speed up vista startup on your machine. Trust me we have all been there at some point in time. It can be extremely frustrating when your computer takes longer to get up and running in the morning than you do! Unfortunately if you have owned your computer for any length of time then it has no doubt become much slower than it was when you bought it. Its ok though, there are several simple ways to speed up the vista startup time on your computer and actually make it run faster than the day it came out of the box! The two primary causes of your vista startup slowing down over time are corruptions in the registry of your computer...

The abuse of freedom is almost inevitable in today's world. As a check, a lot of restrictions have to be put in place to safeguard certain values thereby, almost making a joke of our hard earned freedom. No doubt, the human nature is very exploratory, adventurous and daring. This perhaps could explain the inability of certain humans to follow law and order or behave in an easily predictable or desired. Trespassing is a crime inherent to humans hence, the need for laws and measures to protect private property to be enacted. In the cyber space, trespassing still poses a major problem. The unwanted or unauthorised use or abuse of private or public networks has warranted the employment of proxy servers...

Wallpaper is a picture or image that we can see on the desktop of our computer when we are not doing any work or not running any program. It is a background on our PC or laptop. There are many types of wallpaper available on the web to decorate our desktop of our PC. Most of the time we choose wallpaper that suit our style and show our liking or disliking. There is a race between people to get the best wallpaper for their desktops. There are a lot of wallpaper categories available from where we can see thousands of wallpapers. Wallpaper showing the proud feelings and patriotism are liked very much. Marine Corps are the force that is responsible for providing force projection from the sea. They are...

How a Plasma Display Works Plasma Televisions are made up of plasma gas which is Xenon and Neon Gas. Thesegases are placed in tiny cells or pixels across the screen. The interior of the pixelsand sub-pixels are coated with phosphor. Each pixel has three sub-pixelrepresenting a primary color (red, green and blue). These cells (pixels) are containedbetween two pieces of glass. Connected to each plate is an electrode, theseelectrodes extend the whole length of the plates of glass forming a grid on bothplates of glass. These electrodes are also connected to a computer in the display. Tocreate an image the computer sends a current on the electrode and thecorresponding position on the grid to charge the...

Modern day life is literally infested with gadgets and electronic appliances. These things have become a part of our lives. People spend a lot of money on buying this stuff. While gadgets make life fun and smart, appliances make life convenient. They help saving a lot of time spent in doing household tasks, so that more and more time can be spent on more crucial jobs. Yet, unfortunately, neither these appliances nor other gadgets are much durable. They seem to be broken or malfunctioning every now and then. But, there is always a silver lining. For most problems, it is not necessary to replace the item, in fact, you can get it repaired. For instance, you can get your gadgets repaired from the iPhone...

The early computers The history of computer dates back a lot longer than the 1900s, in fact computers have been around for over 5000 years. In ancient time a "computer", (or "computor") was a person who performed numerical calculations under the direction of a mathematician. Some of the better known devices used are the Abacus or the Antikythera mechanism. Around 1725 Basile Bouchon used perforated paper in a loom to establish the pattern to be reproduced on cloth. This ensured that the pattern was always the same and hardly had any human errors. Later, in 1801, Joseph Jacquard (1752 - 1834), used the punch card idea to automate more devices with great success. The First computers? Charles Babbage's...

If you are interested in getting hold of a streaming recorder, I hope this short article will offer you with helpful information on the advantages, just how this works and what is the easiest way to accomplish this. I happen to record streaming video pretty regularly these days and it has got to the stage that my laptop has transformed into some kind of 'centralized data center'. My laptop computer has virtually become the one single place where I have everything. I have my work, personal documents, photos, my personal music and now, almost all my favorite movies and shows all in one place. This came quite by accident and occurred when I started going a bit loony having all types of multi media in...

A Trojan virus is a faulty computer program that can infect remote computers by changing the desktop or deleting important files. Generally called a Trojan Horse, it appears as a legitimate file or software from a trusted source, therefore tricking users into opening it or downloading it. A Trojan refers to a program that appears as something you may think is safe, but hidden inside is usually something harmful, probably a worm or a virus. Take action and protect your irreplaceable computer files, credit card number, bank account number, social security number, address, drivers license number, pictures and important work documents by learning how to remove Trojan viruses . The lure of viruses is...

HTTP is one of the most successful and widely used protocols on the Internet today. It is application-layer protocol used to transmit and receive hypertext pages. HTTP allows a client usually a web browser to send a simple request and receive response back from the server. Whenever you write a URL in address bar of you browser, your browser firstly contacts the web server, web server locates the requested page and sends the appropriate response. These requests and responses are issued in HTTP. Each HTTP cycle has following steps: Connection The connection is established between a web browser and a web server. The connection is established via TCP/IP protocols over particular port generally port 80...