The programming style that we usually call object-oriented programming (OOP) has appeared relatively recently in the history of programming languages. This is a particular and very convenient style for many situations. It was designed to overcome the limits of structured programming based mainly on the widespread use of procedures, functions, pointers or other more or less developed data types.
Although structured programming is very practical for small software systems or reduced non-graphic applications, it should be avoided when dealing with large applications that use graphic elements where object-oriented programming is recommended. Object orientation means organizing software resources as a collection of distinct and discrete objects, which includes both data structures and their processing functions. This organization is an extension of structured programming in which the data structures and processing functions are only loosely connected. All items have their own identity and are perfectly distinct.
An object is defined as an abstract concept, a specific and useful element for any application. Objects serve two specific purposes:
– they provide a better understanding of the problem to be solved;
– they provide a base design for implementation.
A class of objects encapsulates a certain number of objects with similar properties. This similarity refers to both the description (data and attributes) and the behavior (functions or methods). Attributes are unique features within an object class. Each attribute receives a certain value which can be modified during the objects life cycle. Two or more objects can have the same or different values for the same attribute.
Methods or operations are processing functions applied to objects of a certain class. All objects within a class admit the same set of methods, methods which in return may receive any number of additional parameters. In order to apply various methods to an object, it has to be created (defined). Defining an object is called instantiation. Once an object has fulfilled its mission it is removed.
Abstraction is a fundamental human trait that allows us to build models and thus cope with complexity. In every field of human activity, project approach is based on building a model for a better understanding of the problem to solve. Software engineering makes no exception. Through abstraction the essential key aspects are isolated from the non-essential ones. Therefore, each problem might have several adequate models.
In the software engineering industry, structured programming has made a big step forward defining three perspectives needed in order to properly address any application. These perspectives, also known as models, are: the static model, the dynamic model and the functional model.
There are currently several object-oriented methodologies used for analysis, design and implementation of software resources. One of these modeling methodology is the OMT (Object Modeling Technique) methodology. This method of modeling involves the planning of the various development stages and a graphical representation of objects and their relationships.
Mobile phones are an integral part of many of our lives. It is almost impossible to find a person who is not using a mobile phone in the present context. Undoubtedly, there are exceptions and people in developing and poor regions of the globe do not fall within purview of this generalised comment. However, an average person leading an average life is expected to possess a mobile handset; he is also expected to use it to remain connected with his friends, colleagues and family members, even when he is on the move.
The point is that there is a more than adequate demand for innovative mobile phones. Moreover, the leading handset manufacturers are doing all that it takes to cater to the same to the best of their abilities. Motorola for one, is involved in the design and development of high-end mobile phones that can be used for quite a bit more than just calling, messaging or communicating. The Motorola RAZR2 V8 can be taken as a case in point.
Motorola RAZR2 V8 is a slick mobile handset from the Motorola kitty. The great looks of the handset would whet the curiosity of fashion conscious phone users. The wide array of high-end multimedia features and comprehensive connectivity options would ensure that their interest in this Motorola mobile is not without reason.
As a matter of fact, the Motorola RAZR2 V8 is a fun handset to acquire and use; it comes with quite a few avenues for mobile entertainment. Music management is easy with the Windows Media Player. A simple touch is all that it takes to access the different music options. The external display of the handset comes with a touch screen that is easy to use. Users are also able to transfer music files – thanks to the integrated USB 2.0 technology. The connectivity options are equally exhaustive. The handset can be used over GSM networks. Moreover, high speed data transfer is possible due to the incorporation of EDGE technology.
Raina Kelsey is an expert author, and writes about latest gadgets.
Motorola RAZR2 V8 contract
Motorola Mobile Phones
CCP Games developed a massive server cluster to support the thousands of star systems and millions of unique objects that EVE Online, their flagship MMORPG, requires for it’s shared game universe.Their server system is so robust that they schedule a one hour down time every day to run backups, and the system can handle up to 25,000 players (and sometimes more) without collapsing.
|Despite supporting over 50,000 simultaneous users, the server cluster requires just one hour of downtime a day for maintenance.|Only one hour a day of maintenance is required for this monster server cluster, which is designed to scale to support over 50,000 simultaneous users.|With over 50,000 users logged in at peak times, the server cluster can cope with node failures, hardware crashes, and still keeps on going – with only an hour of maintenance a day.|A daily downtime of an hour a day is all that’s required to keep this giant server cluster running, supporting over 50,000 users at peak times.[/spin]
Because of the gigantic size of the database that players interact with, EVE Online doesnt lend itself to private server play, and there are no EVE Online private servers.
Although some might disagree, the player experience actually benefits from a lack of EVE Online private servers.However, the lack of EVE Online private servers benefits players and helps with the game experience.No other game boasts as many simultaneous users in such a large shared universe, and this is the real appeal of EVE Online. Because EVE Online runs on a single cluster, there’s never a choice, like in World of Warcraft, or City of Heroes, to decide which server you’re going to be on based on the server your friends are on.
You’re either on the Tranquility server (if you use the English language interface) or the Serenity server (if you’re using the Chinese language interface), and there are usually ten thousand or more players on simultaneously to interact with. Singularity, the test server run by CCP, is the third server cluster, and all players are recommended to install a test client and give input to the game’s development.
By contrast with World of Warcraft, there are dozens, if not hundreds, of private servers out there, that will let anywhere from a hundred to maybe a thousand players log in simultaneously. For WoW, this is an opportunity to “grind in private”; if you tried doing that on EVE Online, you’d have a hard time hooking up with other players at all, due to the massive size of the universe to explore.
Luckily for CCP, an EVE Online private server is beyond all but the largest research institutes and supercomputer sites – most people don’t have solid state drive arrays and massively parallel servers at home.
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Everyday there is increasing number of IT Company in both developing and developed countries. Server Management Services is a freelancing solution that controls the everyday functions of web servers, keeps companies current with technology and best methods, and decreases expenses. This set of services standardizes server functions, provides the employees and skills to help your web servers run effectively, and helps you to save your business money. A dedicated server gives you a far higher amount of server space to use – the entire machine, in fact – and is a great choice for high-volume sites that need continuous attention. You can use this kind of web page hosting and get handled assistance, where your host company provides complete or limited assistance for your server, or unmanaged. Often, you will have complete main access to set up whatever you will require on you devoted server and the company will handle everything up to the application part.
The company environment is never stand still and this demands companies to constantly scale up and mange their IT features. IT Company requires careful planning and control of data centers, data source, remote features control, features, protection solutions and problem solving company networks. In any network system whether you opt for dedicated or Virtual System Server management services play very inevitable role. Server management System help to improve usage of IT features, maintain IT service a continual, minimize protection risks and, considerably bring down the features expenses as well.
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Experienced program and system experts available around the clock Slot server monitoring solutions for standard audience like SMTP, POP3, HTTP, and many more Wireless router, change, firewall program, VPN, fill balancer and other crucial facilities monitoring Usage pattern research for system slots and program functions Unix, Linux Windows -working system-specific traps Enhance Business Growth Better Operability results into sustainably.
Assisting pc users can take a substantial amount out of an IT squad’s time. That is why many businesses are turning to Xerox-and finding that their costs and threats are reduced, and their skilled internal technical employees are free of routine, time-consuming projects.. While selecting reliable network management that will improve and enhance your overall IT Database of any firm. At international level, achieve allows you to take advantage of the large number of experienced IT experts in all sides of the world. There are many network services that provide unique network services for management services which ensures access anywhere and everywhere with secured encryption. While Desktop management services are deliberate to raise your standards for End-User Environment and Utilized your IT Resource.
Don’t you hate it if your download page or thank you page can be found in Google, Yahoo or MSN? What about your eBook, is it listed in Google, too?
Your result of your hard work can be accessed by everyone because your page is simply indexed by search engines such as Google. You invested your money, time and energy to create your best product but your product can be found by everyone easily without even paying you. You could loose thousands of dollars. You don’t want this happen to you, do you?
So here comes the yellow mouse robots spray. Repel search engine robots from indexing your pages!
Robots.txt is a simple text file that tells the search engine robots not to crawl certain directories and pages of your site.
When a robot crawls your site it looks for the robots.txt file. If it doesn’t find one it assumes automatically that it may crawl and index the entire site. Not having a robots.txt file can also create unnecessary 404 errors (page not found error) in your server logs, making it more difficult to track the real 404 errors.
Creating robots.txt file is easy.
1. Open your notepad or other text editor (not HTML editor).
2. Type this following to prevent all robots to crawl or index your certain directory:
where directory is the directory that you don’t want to be crawled or indexed by search engine robots.
3. Save the file as robots.txt.
4. Upload it to your domain root directory so that it looks like this:
5. Confirm if everything is correct using robots.txt validator. (You can easily find robots.txt validator using Google Search).
For more information on robots.txt, you can visit .
Are these two tricks enough to protect your product download page, thank you page and private page? Perhaps, because nothing is perfect in this world.
So I’ll give you another trick to double protect your precious page.
Another trick, which may be more convenient for page usage, adds a META tag to an HTML page to tell search engine robots not to index the page.
To prevent all robots from indexing a page on your site, place this following META tag into the HEAD section of your page:
META NAME=”ROBOTS” CONTENT=”NOINDEX, NOFOLLOW”
(Add “” after the code).
That should helps protect your precious pages.
One more trick, exclusive to blog only!
All of those tricks above are useless if you still allow pings for your blog page or blog post.
Disallow pings for your precious page.
If you use WordPress:
1. Expand your discussion tab.
2. Uncheck “Allow Pings”.
These tricks should help you protect your product download page, thank you page and private page. However, these tricks don’t protect your precious page if your buyer adds it to his Internet Explorer’s Favorite, Firefox’s Bookmarks or social bookmarks and share the link with his friends.
For running the restaurant in more advanced way, you need to use high-end best POS point of sale technology. A Point of sale technology can manage the lot in your restaurant fairly comfortably and precisely. Most importantly, New point of sale technology can process all sales made in your store be it credit card, debit card or cash payment. Unsurprisingly, the Business point of sale technology is equipped with a full payment processing system and from your part; you should take no chances in ensuring that the Best POS point of sale technology is fully safe for such processing.
Your customers may opt to pay through different means where it may be cash, credit cards or cash cards; even some of them may be your usual customers whom you will charge seldom. So, Best POS point of sale technology vendors gives sufficient fondness for collecting and processing payments in dissimilar modes. The New point of sale technology should also facilitate you to bring together payments from customers whose records are saved in the main database of the best restaurant management software.
Under standard conditions, your customer will dine in your restaurant, walk up to the cash-counter or the payment processing systems console and pay using his cash/credit card or simple cash. Now, if the customer pays in cash, the best Point of sale technology software will open up the cash-drawer robotically the moment the cashier enters the cash details in the console. For credit/debit card dealing out, you will get your customer’s card swiped in the system and the amount will be routinely updated in the best restaurant management software.
All POS inventory system is equipped with adequate security features to prevent mal-practices. As you get various reports on the data collected in the POS inventory system, any discrepancy will be easily noticeable to you. The information of your customers’ credit or debit cards is completely encrypted through the Business point of sale technology so that they can dine and enjoy in the restaurant generously. A number of best Point of sale technology are also equipped with online payment gateways to full transactions over the web from the POS inventory system console.
It is vital to run your restaurant with an optimized system offering the customer with an immense dining skill. So, to linger in the business fruitfully, you need to have Best POS point of sale technology besides efficient workforce and sufficient infrastructure. Ultimately, your New point of sale technology makes the difference and takes you towards achievement.
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Linux hosting is more modern and hype than other hosting facilities. It becomes predictable to information, your ideas and other business strategies via internet globally. Internet becomes the fast growing business to expand the business operations and other opportunities in very small time duration. Linux Web hosting services reduces the difference between information providers and searchers. Manufacturers and Services providers have to make their websites accessible to the general public. It gives a better platform for data center space and connection to the world also provides the technical and logical support to the whole business. At a very convenient price, we promise Fast, Safe and Reliable web hosting services. Linux Web hosting is most popular worldwide. It is the most common operating system which is famous in hosting environment. With the introduction of more updated version, equipped with numerous user-friendly tools, Linux hosting is not the same again. And the reason behind the popularity in Linux Hosting Shell’s command line interface is used with this websites outlook and features can be easily controlled. Linux hosting are mostly preferred then other because it supports the most common languages like C, C++, Perl, PHP, Python, Ruby etc. When combined, these powerful components allow users to create dynamic, data-driven, interactive website that greatly surpass the functionality of traditional static HTML web pages. Linux Server Hosting is renowned for its superb compatibility and its ability to make the most of the hardware. Linux Hosting India is considered as the best among the various webs hosting in providing quality service at very affordable prices. Web hosting services based on operating systems of open source origins would also make it easier for you to fix any bug that might occur in your website. Linux hosting has been already used by hundreds of people by now therefore you can get solutions and patches for any bugs you might come across and easily fix the glitches. Linux Hosting India is basically preferred for home networks. One should always do the necessary research before investing into any kind of web hosting services India. The advantages of setting up a home server are immense. Linux hosing is one of the most economical solutions for web hosting. You can download and use the software free of charge. The expenses associated with it are nominal, as compared to other hosing services. There are several factors that call for your attention; web hosting being of one the most important among them. This article focuses on a significant type of web hosting, Linux hosing. Apart from free licensing facilities, Linux hosting services can help a website owner with many other benefits.
We all like to think that we are never going to be involved in a crisis or any scenario where risk is running high. Unfortunately for some, their day-to-day jobs involve encountering risk and putting their lives at risk for the good of others.
Very often, working in high risk environments can be difficult, especially if its on foreign soil. Not knowing your surroundings and working with people from different cultures can often be very stressful work. This is where GPS technology can help.
GPS Technology utilises a network of satellites orbiting earth to send and transmit signals back to devices on the ground, at sea and in the air. Satellite technology is ideal for people working in remote locations as it doesnt rely on cell towers and the signal is transmitted directly to the satellite from the device. In certain circumstances, i.e. in a dense forest or built up city area the signal may falter a little but at sea, in the air or on the ground it is usually a very reliable technology and helps teams in situations liaise with central management teams regarding locations, risk and general communication.
The areas of high impact when it comes to Crisis Management technology are places like the 3rd world countries. These countries often span a vast area of expansive land and aid workers travel from village to village trying make sure inhabitants get what they need to survive. Naturally, as people try to do good others will try to hijack this work for their own needs.
This is a perfect example of where Crisis Management technology can help. Not only do the central teams know the exact location of the convoys but they can also advise of, and how to avoid, potential risk situations by using the GPS technology at hand, both by tracking and communicating those on the ground.
With GPS Technology is easy for central teams to deploy backup to the exact location of a situation. It enables teams to be responsive with accurate information, which ultimately saves lives and allows for critical missions to succeed.
Whether you are running a website or a company which uses dozens of different computers, the method of file storage can be of vital importance to the future of your business. By now most people realize that backups of your important files and systems do not only need to be created on a daily basis, but they also must be stored in a secure location. Let’s take a look at some of the ways in which people store their computer files (we’ve ranked them in order from least secure to most secure).
Every computer contains a hard drive that stores information magnetically. Typically the hard drive is unique to one type of computer; this is the type of file storage most commonly used by individuals, as it is quick and convenient. The downside of relying on a hard drive only file storage system is that if that one computer is compromised either through hacking or through an accidental power surge, or an Act of God, you risk losing all of your stored data. Therefore, this is by far the least safe way to save your files.
Individual users may complement their hard drive saved information by storing their files on separate media such as floppies or CDs. This provides an extra level of security, but the disadvantage again comes in the vulnerability of the media; these small units are easy to steal or lose, and also easy to damage.
File servers save data that comes from a lot of different, networked computers. They make it easy to access relevant information, but this is also their downfall; they are prone to hacking. In addition, their central location (usually in the same building as the computers from which the data is being sent), mean that an act of nature can wipe out all of the stored information.
By far, the best option for file storage as far as safety is concerned is off site. Off site storage facilities are fairly inexpensive, easy to upkeep, and keep your files stored in a place far enough away that should a calamity occur, your files are not all in the same vicinity. In addition, off site storage facilities for computer files are manned by very tight security, and usually have the best in technological support.