techno13

What is a Web Server

Mainly a web server is a sort of software which helps to view a website using the hypertext transfer protocol (HTTP). It is hardware i.e. the computer or a software i.e. the application delivering the internet accessed content. Many people think that it is a special computer as many computers are made as web servers keeping in mind to host website. In other way it is software which is installed to your PC.
Mostly web servers are used for hosting websites but for running business applications. Its main part is to deliver web pages as it gets the requests from the users. The users send its request using the HTTP and the server replies it with the content and if it is unavailable it gives an error message. The crucial function is to serve the content by implementing of HTTP and to receive the content from the users. There are many web servers supporting server side scripting like PHP and Apache.
The IT infrastructure management firms and other server support companies are also offering web server services to the users. The web servers are actually not always used to serve the World Wide Web. They are also used as an implanted part in devices such as routers, webcams, printers etc. Now the user can use it for monitoring purposes.
The web server has some defined load limits and a certain number of clients connections and a definite number of requests can be served. It depends on the settings, HTTP request type, content, limitations of OS of the hardware and software. There are various benefits of it within the development environment such as the local website appears to be like a live site, server scripting languages can also be used such as PHP and others, coding can be standardized, it can easily be understand how it works in the environment, the user will easily understand about the request or any issue.
There are many good features of the web browser like: Creating more than one website and no need to make set of pages.
You can configure the log file settings. You can create an FTP site to transfer and share data.
Creation of virtual directories. Configuring customized error pages.
According to the use the user should judge about what type of web hosting service he can use. Many types can be considered. Most of the providers offer the Linux based hosting offering different types of software. Web hosting services many times have a Web Content Management System and it helps the user not to worry about the technical concepts in depth.

techno12

Pro Forex Robot Review, Automated Forex Trading System

Pro Forex Robot- The Market Shaker Review

Pro Forex Robot is trully unique to any other robot on the market today. It is a fully automated Forex Expert Advisor for Meta Trader 4 platform that works with all major brokers.

It was developed by expert mathematicians and programmers with the guidance of 28 year professional Floor Trader Ron Carter. Ron made a career in the pits by trusting his instincts and acting on opportunity. PFR blends Rons trading style with state-of-the-art technology for winning results. They are so confident to their robot that we will show you the REAL, Live trading results for the past two years. Forex trading does not have to be stressful and confusing.

What will you get in this Pro Forex Robot system?

Have the knowledge and experience of a 28 year veteran Floor Trader at your disposal with a click of a mouse. Rons strategy is fully incorporated into Pro Forex Robot.
Pro Forex Robot requires no previous Forex experience. Even the most Novices amongst us become quickly familiar with this stunning technology.
Unlike some robots, PFR is easy to setup and takes hardly any time. Go from checkout to trading Live with PFR in just a few quick minutes.
Automated trading allows you to be active in the market while living your life. Theres no need to babysit your trading platform with PFR.
Our world class customer support staff is there with you every step of the way. Have a question? Were quick to assist!
PFR attaches right to your Metatrader platform. Dont worry about having to learn a new system or program.

The system is one of the most complex out there, however when it comes to YOU using it – it’s a piece of cake! It’s literally plug and play!
With 3 easy steps you can be up and running in the next 3 minutes. Once you’re on the next page you’ll simply download the PFR suite and installer instructions (it’s literally going to take you a few minutes from start to finish!).

Step 1: Download The ProForexRobot
It takes absolutely no time and the files are easy to use

Step 2:Install Our Suite Onto Your System (Mac OR PC)
Don’t worry about what OS/Version etc. you have – this WILL work

Step 3:Start Scooping Up Your Profits!
Works INSTANTLY. You can go fish, go live life, PFR does the work!

Use the tried and true method of an actual Floor Trader to finally realize your Forex goals, while remaining hands and worry free! Get your Pro Forex Robot now!

techno9

Dedicated web server

Dedicated server hosting it suggests that it is all about taking a hosting server on lease. Not like shared hosting where you share the bandwidth, data storage with other users. In dedicated server hosting you have complete control over its hardware, functionality and other stuff. You can control your own server. This is the elite webhosting type. This is best suited for the website with huge traffic. Generally dedicated hosting is the costly web hosting service due to the customizable option you get with the hosting. The price of dedicated server varies with the alteration of operating system you use, the amount of RAM you want in your dedicated server, the type of processor you want in the dedicated server, and most importantly the amount of bandwidth and storage capacity you opt with. Apart from this the number of IP address can also increase the aggregate cost of the lease of dedicated server. HostGator.com is well known entity in the world of web hosting. They have started their operation in India as HostGator.in HostGator India operation is very fast growing Indian web hosting firm. HostGator India is one of the leading dedicated service providers in India. We provide powerful dedicated server with both type of hosting. Basic, Standard, Elite and Pro dedicated server ensure client gets the best suitable server they want. To know more about the plans HostGator provides you can visit you can go with Linux dedicated servers or Windows Dedicated servers. You can go with either Linux or Windows as an operating system in your dedicated server. But generally confusion occurs which one is best suited for your website. How to make choice between Linux Web hosting and Windows Web Hosting? Traditionally Linux is reliable, robust and stable server. Anybody would love to have website hosted on server which will stay up and stable for longer period of time. When it comes to webhosting, Linux server has been widely considered as best server for webhosting. Hence it is commonly used for email and demanding environmental web servers. If you site is just like any other website which uses PHP, Perl, MySQL etc. then Linux server is for you. However, if your site is interactive or online searchable database then Windows hosting is the best bet for hosting your website. Windows hosting is costlier with respect to Linux hosting but it get compensated with the time and money you pay for development of the website.

HostGator India is capable of providing both type of Dedicated hosting to their client. With 24/7 support we ensure the best after sale technical support to the client opt with the dedicated service from HostGator India operation.

techno12

Benefits Of Dedicated Servers In Games Website

Every once life one is the time when he/she have his own game to play. In today’s market you can see allover digital games are more popular like xbox360, play station and Nintendo games capture the game markets. But can you think it why everyone like to play online ? And this the base idea of dedicated server games theme.

Everyone cannot afford to buy Xbox 360, play-station or Nintendo. But current games versions available on Internet is better than to play alone. There quality,display,speed are specially made to give you a high quality excitement, and these kinds of things are possible through dedicated servers.

If you buy a game DVD, how much time you play? At one stage, to play that game getting so boring, This is the main reason behind popularity of online games. With the help of dedicated game servers people can play against someone else there is no need of same play station. This is the main reason, the online game providers never end the demand of dedicated game servers.

Network bandwidth is one the essential part in gaming business, because it must be required always in upstream. Here home or office broadband Internet connection is not sufficient. Normally with these type of connection, player does not get upstream bandwidth to host dedicated game servers more than five to ten clients, but in the past years this is the only option was available for game hosting.

Couple of years before, the player who have the game, host the server and also run the client. However, on another side, the bandwidth provider of latest broadband service, handle the outgoing traffic at same time, therefore the host computer struggled to provide a good quality of service to the players on the network, while at the same time running the game on the same computer.

However, the online game providers realized, the importance of dedicated servers, because they need professional server to read data and transferring huge amounts of data as fast as players need it, therefore they purchased rack mounted server machines and colocated them inside Data Center Services to host their games Website. They paid monthly charges for it and the services they got is invaluable, these set ups improved the quality of their games.

Nowadays, the online multi-player gaming become so popular, and renting dedicated game servers are the common thing in online gaming.

techno14

Roomba 770 – The New Vacuuming Robot

The Roomba 770 from iRobot is an advanced cleaning robot that vacuums your house so that you never have to lift a finger. The Roomba 770 is just one in a series of iRobot Roomba vacuum cleaners that have been evolving over the past few years to provide you with the best cleaning robots. The Roomba 770 is the little brother of the 780 in the 700 Roomba series.

Programming your vacuuming at home is one of the luxuries of this robot – up to 7 times a week with the 770 so you can head out and forget about it. It navigates itself throughout the house using the new ‘sensor technology’. This robot can be programmed with exact parameters of where to go so it doesn’t get lost in your house.

The Roomba 770 has an Advanced Cleaning head that has been designed especially for pet owners. The new cleaning head of the Roomba 770 has been specifically engineered to pick up extra hair and dirt – right down to the smallest dust particles.

iRobot’s Roomba 770 has iAdapt technology which means that it can customize to your house and the area it is cleaning up to 60 times a second. Softening the contact with multiple pieces of furniture in your house it uses sensors to ensure it doesn’t break anything. It can tell the difference between a wall and a curtain and uses an incredible wall following technique to make sure your whole floor is cleaned.

The 770 Roomba has the brand spanking new ‘Dirt Detect’ that stops the Roomba in its tracks if it finds a particularly dirty area – making sure it goes over it until satisfied. The New Roomba 770 also features a bin indicator light that lets you know when it needs to be emptied. With a Roomba 770 robotic vacuum cleaner from iRobot the most work you will ever have to do around your home is to empty the Roomba 770’s bin and make sure you keep it clean. When it’s low on power the little robot will also find its way back to its dock to fill up with gas.

If your time is valuable to you – you can now spend it doing something other than cleaning your house. Let the Roomba 770 do your work for you.

techno10

Visual Basic Is A Very Easy Programming Language

Visual Basic is a high level programming language that has evolved from the DOS based programming language called BASIC (Beginners All Purpose Symbolic Instruction Code). It is a very easy programming language to learn and use and the code is very similar to the English language. It is a programming language that is composed of many subprograms that can execute either independently or linked together at the same time. Visual Basic is an event driven program language that has some of the features of an object-oriented programming language, but not all of the features of an object-oriented programming language.

The most common version of Visual Basic is 6.x developed by Microsoft and is a very graphical user interface that makes developing programs very easy. To start programming in Visual Basic you will need what is a Microsoft VB compiler. When you start to develop a program in Visual Basic it is called Project and this Project is the collection of files that make up your entire program. One of the most common programs to start is called a Standard EXE (executable) program and it is easy to start in the Visual Basic programming environment by simply double-clicking on the Standard EXE icon.

Once this is started you will see a series of other windows appear that you can select from. These windows include the Blank Form, Project, and Properties windows. A Toolbox is also included to provide easy access to create objects such as buttons, text and forms. The Toolbox makes it easy for programmers to simply click, drag and drop into their program interface.

With knowledge and practice within visual basic a programmer can learn to easily build user interfaces, controls and other GUI components. A programmer will also know how to debug a program and use other tools at their disposal in what is called the Visual Studio. The Visual Studio provides an excellent set of tools for helping to program in Visual Basic 6.x.

techno18

Multimedia Led Projector With Built-in Dvd Player-usb, Hdmi, Vga, Av, Atsc

Now days, more and more home like to watch movie in their house with a projector, so you will never go to theater to watch a file, just store the movies in this player, then you can watch films. Also, most of offices are using this device, to show some materials to workmates. So Multimedia LED projectors will become more and more popular in near further.
Today, we will introduce zipgoods.com a new multimedia LED projector, which built in a DVD player in it. With this device, you will have a projector for enjoying movies and TV.
This multimedia led projector can provide clear images, The LED light source delivers a wider color range and deeper color saturation than traditional lamps and provides clear, crisp images for any type of media from videos and TV. Although it is a small sized device, but you can enjoy splendor movies with it.
We can say that this multimedia composite all multimedia in it. It built in a DVD player in body, besides this, it also can be connected to your computer, home video system, or receive TV with its built-in ATSC tuner. It is not only can be used in your home, you can use it in your offices, conference rooms, classrooms, living rooms, etc. so it is widely used in our daily life.
You may worry about its quality of LED lamps, we will say that you can not worry about this. The LED light source consumes less energy than traditional lamp-based projectors and is mercury free. It offers up to 50,000 hours lamp life, which means that it can last for more than 30 years (4 hours a day). Furthermore, LEDs stay cool, you can turn off the projector and pack it up without having to wait for the lamp to cool down first. After you do a demonstration in your meeting room, you can collect it immediately, and get back to your work soon.
Besides its good functions, this multimedia LED projector has a nice design, with its sexy body, you will love it at first glance. If you put it on in your home or your bed room, it will be considered as a artwork.
So, if you want to enjoy clear movies now, get this multimedia LED projector soon.

techno7

Automated Robots And Systems

With the advance of technology, it is now possible to trade the Forex market automatically. This is possible through the use of automated robots and systems that execute trades on behalf of a trader when a certain set criteria are achieved. A Forex robot is a program that strictly uses technical signals to execute trades in the trading platform without the direct intervention of the trader.

Although automated robots are a good way of navigating the Forex market, they have several pitfalls. The Forex market is very dynamic in nature; that is, the market conditions change on a constant basis. Therefore, since robots basically trade on a certain set of pre-wired conditions, they are not able to cope with the ever-changing conditions present in the Forex market.
A majority of the robots available out there are not programmed for all environments or are not able to recognize drastic changes in the market conditions. Therefore, they are prone at making losses, which can be enormous if not properly watched or managed.

Because of the advantages of trading using robots, scammers sometimes dig around these to give false claims to ill-advised traders. For example, a flashy advert can claim that a robot being sold at $30 is able to make 200-500 pips per day. While this is not impossible, you should be careful about such claims. If the robot is able to make such a huge number of pips per day, why cant the owner simply trade using it and make lots of money instead of trying to sell it to other traders?

It is important to note that in the world of Forex trading, there is no such thing as a consistent market, and past results are usually not indicative of future results. Conditions of the Forex market change on a constant basis. This means that results realized yesterday may not be the same results realized today. And, some of these scammers make up the results of their trades to convince traders to purchase their products. When the deal is too good, wont you think twice?

The most appropriate thing to do is to stay away from automated systems and robots until you have thoroughly fine-tuned your skills in trading. Beginners usually do not know anything on how the Forex market operates. Therefore, it is best to become a master trader before allowing automated robots and systems to do it for you.

techno9

The Importance of Using Robot Vacuum Cleaner Reviews

Robotic vacuum cleaners, also known as robovacs, are intelligent machines that do not work like regular vacuums. They move and spin on their own, covering large stretches of space. The brushes may stretch or rotate to clean properly. Robovac owners use the tools to free themselves of another domestic responsibility. The popular and effective robot brands have been reviewed heavily. People who want to take on robot vacuum cleaner reviews successfully should know about the different features that will be discussed.

Robovacs -see- in different ways. Some machines use audio and visual sensors to find obstacles. The sensors are made to find dirt and debris. Other machines have laser eyes that create room outlines. The Neato brand has vacuums that use high-tech laser maps. The Iclebo brand has models that vacuum and re-vacuum the same areas several times. The advanced models have built-in cameras that find past locations and destinations. Good robots know where to move, where they have been and where they should go. Efficient robovacs clean entire floors that are mildly to heavily filthy. Consumers must find robots that actually see well.

People’s needs vary when it comes to choosing the best vacuum. The main feature to look for is power. Any vacuum has to have its suction powers tested. The power affects the efficiency of the brush, which can rotate or sweep from side to side. Along with brushes, the vacuum must have all the power parts like cords, remotes and batteries that do not break easily and can be replaced quickly.

Sufficient power includes a long battery life. The manager of a large office will want a long-lasting product. The vacuum may take an hour to clean one area, and then it works on another area. Some electronics have low battery indicators, and others recharge themselves and continue to clean. Many robots recharge immediately without human assistance.

It should be easy to clean and move robovacs. Some machines are simple to clean and empty without large bags. Some devices have indicators that show when the bins are full beyond capacity.

Robot vacuums are designed to automate the task of vacuuming, which saves the time and efforts of the owners. These devices crawl into hard-to-reach places and clean thoroughly. It is rare to find a quiet vacuum, and most people have accepted that fact. Also, the vacuums may not be perfectly streamlined or work in all parts of the house. In addition, it is hard to test every product out there, so customer reviews are valuable. These vacuums are proven to work, so consumers should know the features and analyze reviews carefully.

techno10

Best Automated Forex Trading System – The Turtle Robot A Verified Track Record Of Millions In Profit

If you are looking for the best automated Forex trading system, you want real time verified performance in the market which has been audited and if you are like me, you will want to know thee trader who developed them is famous and know the logic and rules before you buy so you can have confidence in the system and that’s exactly what the Turtle trading robot gives you.

The Turtle trading robot is based on one of the most famous trading experiments of all time which took place back in the eighties. Trading legend Richard Dennis decided to show that anyone could win with a set of rules and confidence in them, so he got a group of people who had never traded before and taught them the Turtle rules.

This group ranged from a security guard to a kind fresh from high school and none had experience trading yet, they went on to make hundreds of millions of dollars and the top turtle trader made over $500 million!

These exact rules, have been programmed into the Turtle trading robot and anyone can use them. The gains you can expect depend on how much capital you start with and the risk you wish to take but on a risk of just 2% per trade you can target triple digit gains.

A good bonus about the robot is you can read all the rules and logic behind them before you buy, so you can have confidence in them for when you come to trade.

Most robots make laughable claims and present track records which simply look to good to be true and they are because, when you come to the track record, you find you have to rely on figures from the vendor with no outside check or the track record is a simulation going backwards, knowing all the closing prices!

If you want tom make solid long term gains without the hype, pick the Forex robot the serious traders choose to make them gains the Turtle trading robot which in our view is the best automated Forex trading system – check it out and see for yourself.

techno13

Best computer at low cost

In our modern world computers acts a very important factor in our life. In these days without computer is dim world. So it is really important for everyone to know the digital world. That is what everyone is doing! But as time pass by everything is changing. Today people want best things at low cost especially cheap computers. Some achieve this swiftly while some look for it badly. It is a waste of time for searching the best things at low cost without knowing where to search. So luckily I have discovered a website where computer hardware, laptops and desktop pcs are sold. Actually my cousin told me about this computer store. He said their products are fabulous and long lasting. They are centrally located in Bangladesh and they sell many companies product. They not only sell laptop but also sell camera, printer, gaming accessories, desktop accessories and many more. The website is . For more information about their company and area of work, visit , .

Recently I bought a HP Mini 110-4112TU laptop from their website. And I was satisfied that I have a good laptop at easily affordable cost in my hand. With every laptop you order from their website you get a laptop cleaner free and I got one! It was very much helpful for me as now I can take great care of my laptop. This is the first time I ever saw this kind of offer.

This encourages me a lot. I began to publish it to my friends and they liked it too. I felt satisfied to see such computer store present in our country. On top of this they offer exciting prizes which is much helpful for everyone.

If your computer is broken then feel no worry, as they offer computer repairing service to everyone, no matter where you buy from. And that kept me relax further as I can fix all my computer parts at any moment without any argument.

Computer act as a backbone of our life. And ARRA technologies feel it, thats what I can say. If you have any question about arra technologies, then please go to this url . I highly suggest this website for those who want to buy computer parts, Laptops, Desktop pc and other IT products. So, enjoy your life with the modern technology and become a part of a digital world.

techno18

Publishing Your Articles with Article Submitter Software

Article Directories have become very popular for both, the authors who want their articles published and the pepole who are looking for content for their ezines or sites. But this has lead to a huge amount of article directories on the internet, which makes it impossible to submit Your Articles to all of them by hand.

The solution to getting published by as many directories as possible is to use automatic article submitter software. These tools will auto-fill the forms at the article directory sites for You and thus save You tons of time. Article Instant Submitter will also have more than 150 directories You can post to. This will save YOu time and effort searching the net for all of these.

By getting Your article published with a submission software You will greatly increase the chances of getting published on sites or ezines other than the article directory. This will dramatically increase the amount of traffic You will recieve and give You more quality backlinks to boost Your Link Popularity.

Getting Your Article out to all sites possible always ensures that Your article and link is going to be picked up by a search engine spider rather fast than slow. The more listings You create, the higher Your chances of seeing Your website in the search results in just days.

So use an Article Instant Submitter and give Your article all the exposure it needs to become a successful promotion tool for You and to get published more often. This will help You to build reputation online and get Your web-sites listed higher up in the search engines!

Written by Thomas Kraemer I`m Web Marketer from Germany the North of and use Article Marketing to increase my sites position in search-engines dramatically. Find more Infos on Article Instant Submitter at my website:

techno11

Dish Network International Programming Package

Looking for the best international programming on dish TV? Then you will surely enjoy the extensive range of international programming on Dish Network. These channels bring you the best of international programs in different languages. No matter what is your native language or from which country you belong, you can still find international programming at a language closer to your home. There is a wide array of international channels available with the satellite TV provider. The company is also planning to introduce a few new channels consisting of some of the best quality international entertainment.

At present people from different corners of the world are living in the United States for different purposes like studying, jobs and many more. These people hardly can find time to get in touch with their native land and native people. So dish TV international channels come as a great source of entertainment to them. With these programming packages they can enjoy a wide array of programming in a language they and their native people speak and understand. There is a wide array of such international packages that are dedicated to one or more languages. At present the satellite TV provider has over 180 channels in over 28 languages that are spoken in different parts of the world. If you are a foreigner in the United States you can still keep in touch with the events, rituals and customs of your native land by opting for these dish packages.

Who will want to opt for dish international channels?

The people who are living in the United States away from their native land for different purpose are the prime viewers of the international TV programming. Dish network providers bring them the best satellite TV international packages at unbelievable rates. They can opt for the packages of their choice and can avail a plethora of channels that provide them quality entertainment like movies, sports, news and much more.

The international standard hotels are also a part of the international package clientele. As these hotels welcome foreigner guests everyday they opt for these channels as a part of their guest entertainment facilities. The foreigners often prefer to watch programs in their native language and hence the hotels and other free to guest facilities opt for dish international packages.

What do the international packages offer to you?

There are special international packages for different targeted audience. For example, there are Dish Latino packages for the Mexican and Latin American community. You can also get different packages for Russian people, South Asian people as well as people from Arabia and Middle East. There are programs for Chinese and other Asian people as well.

The international programming in dish network has huge popularity and fan following. Due to this the satellite TV provider is planning to provide a few new international channels. These channels are sure to keep the viewers thoroughly entertained with its highly engaging as well as interesting content throughout the day.

techno10

Best Server Maintenance How To Do It Correctly

Sometimes, expressions like -the server has broken down’ can cause dread in the network supervisor’s heart. Just as a good parent looks after his or her children even when there is no obvious danger, a good network manager should also observe the servers to confine prospective issues prior to they come about. If we talk about the outsourced IT support, it is a key to the triumph of any company that depends on a network of computers for its everyday operations. For these companies, computer maintenance turns out to be essential.

Let us take a glance on systematic guide to right server maintenance.

First thing the administrator needs to do is intend usual server troubleshooting & maintaining practice. To facilitate the maintenance of the server more proficiently, you require having an average troubleshooting process that you will tag on every time you are maintaining it. Make use of a checklist to help in your troubleshooting & safeguarding procedure. This will avoid you from failing to notice something.

Next important thing is to settle on whether the physical element is carrying out correctly. This takes in inspecting the hardware, cabling arrangement and any connected sideline. Turn off the network cables & cards to assist recognize any errors in the hardware. In case, there is any fresh hardware in the server, then ensure that it is well suited with the operating structure.

After that, you should look out for addressing & routing issues in order to control the traffic. A sincere attention towards the design of your operating structure is important. Standard business networks run on TCP/IP, therefore a faulty TCP/IP setting can cause address & routing problems. Always make certain that your server’s each TCP/IP design is correct.

We know that server applications are typically diverse from applications that are set up on computer units. Usually, the server applications are set up over the operating system and they let you to uphold and watch your server & the computers in the network. You require making certain that these applications are friendly with the essential operating system.

Furthermore, while troubleshooting the print server, you should ensure that your printer is working smoothly and that every connection is safe. Also, make certain that the printer drivers are set-up properly and the print spooler service is operating efficiently. In case of any crash in the computer, hard disk recovery becomes important which only a hardware expert can do.

Michael Philip is an experienced writer, he is writing this time for www.care.net.sg. This is a best IT solutions/service provider in Singapore? Currently Michael writing on different topics like, it support, server maintenance, data recovery Singapore, etc.

techno6

Running Two Projectors With One Computer

For some occasions, you might want to run two projectors by using one computer in the same time. In this case, you should know that some computers will allow you to simultaneously plug multiple projectors. This is because those computers especially desktops have two video graphics array connectors.

However, you might have computer that does not have the dual VGA connectors. For this condition, you should purchase a VGA splitter. This equipment will divide the signal to allow you playing the graphics through tow projectors that you have. With this way, you will find that the image that you will get is not as clear as that you want. But, you will find that the difference is barely noticeable if you only split it once. The followings brief description on how you can run two projectors with one computer.

Firstly, you should purchase a VGA splitter. This is the most first thing that you should do. You can buy this equipment in the electronics supply stores in your area. The price for this equipment is a about $10 to $20 or more.

Secondly, you should connect the VGA splitter that you have purchased to the VGA port in your computer. You will find that the port for VGA is generally blue and it has 15 holes for pins.

Thirdly, you should use split wires to connect the projectors. For this, you should use VGA cables that appropriate with your projectors. If the input of your projectors is also a VGA port, you can use a cable with a VGA plug on one side of the cable. But, you should use a plug for VGA with three prongs output if you use a component projector.

Fourthly, you should power on your projectors and your computer before calibrating the projectors. You will find that calibrating your projectors will depend on the specific projectors that you have, but you should set the input before running it through the computer that you use.