Advantages and Disadvantages of Mainframe Computing

Mainframe computers perform complex and critical computing in large corporations and governments across the world. Mainframe machines are fast, smart, and capable of the advanced computing necessary to our generation of corporate IT infrastructure and business goals.

The emergence of newer computing technology has not killed demand for mainframes, as they offer unique benefits that make them one of the most reliable business computing solutions.

Let us look at the features that make mainframes a preferred computing platform, and also a few of their drawbacks.

Advantages of mainframe computing

High-level computing: One of the main characteristics of mainframe computers is their ability to process data and run applications at high speeds. Business computing requires high-speed input / output (I / O), more than raw computing speed. Mainframes effectively deliver it. Further, as business computing also demands wide bandwidth connections, mainframe design balances I / O performance and bandwidth.

Increased processing power: Mainframe computers are supported by large numbers of high-power processors. Moreover, unlike other computers, mainframes delegate I / O to hundreds of processors, thus confining the main processor to application processing only. This feature is unique to mainframes and makes them superior in processing.

Virtualization: A mainframe system can be divided into logical partitions (LPARs, also known as virtual machines). Each LPAR can run a server. Thus a single mainframe machine can do the work of a "server farm" that employs scores of servers built on some other platform. As all these virtual machines run on a single processor in a single box, mainframes effectively eliminate the need for a lot of other hardware.

Reliability, availability, and serviceability (RAS): The RAS characteristics of a computer have often been some of the most important factors in data processing. Mainframe computers exhibit effective RAS characteristics in both hardware and software.

Mainframe systems are reliable because they can detect, report, and self-recover from system problems. Furthermore, they can recover without disturbing the entire working system, so keeping most applications available.

The serviceability of mainframes means that they make it reliably easy to detect and diagnose problems, making it easy to fix problems in a short time and with little downtime.

• Security: As mainframes are specifically designed for large organizations where the confidentiality of data is critical, mainframe computers have extensive capabilities for securely storing and protecting data. They provide secure systems for large numbers of applications all accessing confidential data. Mainframe security often integrate integers multiple security and monitoring services: user authentication, auditing, access control, and firewalls.

• High-end scalability: The scalability of a computing platform is its ability to perform even as processors, memory, and storage are added. Mainframe computers are known for their scalability in both hardware and software. They easily run multiple tasks of varying complexity.

• Continuing compatibility: Continuing compatibility is one of the popular characteristics of mainframe computers. They support applications of varying ages. Mainframe computers have been upgraded many times, and continue to work with many combinations of old, new, and emerging software.

• Long lasting performance: Mainframe computers are known for their long-lasting performance. Once installed, mainframe systems work for years and years without any major issues or downtime.

Disadvantages of mainframe computing
One of the predominant drawbacks of mainframes is their cost. Hardware and software for mainframes are clearly expensive. However, compared to the cost of other routes to security, IT management, virtualization, etc., the cost of mainframes is significantly less.

Secondly, mainframe hardware occupations more space than other computers. That large space might be a constraint for small establishments. But that problem is not so severe as it once was. Compared to earlier machines, today's mainframes are small.

Finally, one needs high-end skills to work with mainframe computers. You can not operate a mainframe environment without specific training. However, as one skilled administrator can serve a large group of mainframe users, using mainframes significantly reducing people-costs and thus offers a significant staffing advantage.

Money Management PIP Calculator

There are a lot of Systems out there and they all have there moments. Most of the information you read from the creator of that system show fantastic results and making huge amounts with very little money in the account. Sound familiar. What they are not telling you is that they are showing you the worst way to trade, OVER LEVERAGING YOUR ACCOUNT. This is why we developed the PIP Calculator. This will give you guidelines to follow when trading.

Most beginning traders believe that a good entry into the market is the key to success.
Unfortunately most are very wrong. Money Management is by far the most important criteria of
trading, Every successful trader will agree that managing your trades correctly is the most crucial element to consistently increasing your bottom line. Not to mention managing your money correctly, by limiting your risk to 2% to 10% of your account balance, at any given moment, in open positions, which will reflect your lots or trade positions.

Losing a trade or several trades in a row is just part of trading, get use to it. Unfortunately, markets move in unpredictable ways at times and even the best programs, even the ones I have reviewed, are not always right. In fact, most professional money managers trade with systems that are right only 50% of the time. How can they make the huge returns they claim if they are only profitable 50% of the time? Money Management!

If you're able to effectively manage your money you only need to be right about 50% of the time. The unfortunate thing about 95% of the current traders is that there primary focus tends to always be making money and not protecting their account balance or profits. This is where the Money Management PIP Calculator helps with this problem.

Let's assume for each $ 1000 we use to control a position that we are only willing to loose $ 100.00. Now we will also assume that for every trade you enter you expect to make at least twice what you're willing to loose. In the event your position goes your way, you would set a limit order for $ 200.00 and we will assume you have made a totaL of 10 trades, 5 winners and 5 losers. 5 Losses would be - $ 500 and 5 wins would be $ 1000. You have just increased your account by $ 500 and you are only right half the time.
The 7 Rules of good Money Management.

• DO NOT ENTER ANY TRADE WITHOUT A STOP LOSS.
• Always trade with a Risk Reward Ratio of 1 1/2 to 1 or better on every trade
• Never over leakage your account. True. Over risking will leave you with nothing for the next trade.
• Make realistic goals that can be achieved within reason. Take what the market gives you.
• Losses are part of Trading. move on to the next trade, and trust your system
• Take profits off the table in every trade.
• Only trade with money you can afford to loose. This will help your emotions in trading.

PIP Calculator comes with mouse over information to give you guide lines on how much to enter on a trade with most Currency pairs. It is set to work with all currency pairs. Click Money Management PIP Calculator for the calculator.

Things to Know Before Buying a Laptop or Desktop Computer

From the beginning to now, computers have always been a part of our life. People use them for different purposes in their day to day life. In today's busy life, it is almost impossible for us to pass a day without a computer as they are involved with almost every single task.

Particularly, there are two types of computers. One is a desktop which means the normal, usual computers and the other one is laptops which are actually portable computers. Although the demands for laptops are growing day by day, but the need of desktop computers will always be there. Laptop computers will not be able to replace desks completely as desks are more comfortable to use and they are reliable for powerful works.

Things to Consider

If you are thinking of purchasing a desktop computer or a laptop, then there some things you need to decide first. In other words, you need to take the decision according to your needs.

Think of your Requirements

Firstly, you need to ask yourself that what you actually need. If you want reliability and hardcore performance, then go for a desktop. But if you are a moving person and you want portability with performance, then go for a laptop. So, first decide what is your demands and what do you actually need.

Budget

After deciding which is right for you, the second most important thing is budget. Because this is the thing in which all the other facts depend on. So, first decide your budget and then go for a choice between the ranges of your budget.

If you are going for a laptop

If you have decided to go for a laptop, then there are some consideration facts before you make the purchase. The 3 major facts are:

1. Size

2. Specs

3. Battery Life

Size

The size of a laptop is the first thing to consider. Decide what display size you want and what should be the size of the actual laptop.

Specs

Specifications are the second most important thing. It includes processor, ram, hard disk, motherboard, etc. Go for the best specs that suit your requirements.

Battery life

As laptops are portable so they have a limited battery life. Some laptops offer a medium battery life and some offer heavy battery life. But they make some compromises according to price range.

If you are going for a desktop

Desktop computers are more reliable and comfortable to use in various places. But they are not portable. They are perfect for power users and for users who wants better performance. But if you are thinking of purchasing a desktop, here are the things you need to consider.

1. Hardware

2. Software

1. Hardware

The hardware segment includes parts such as monitor, keyboard, sound boxes, CPU and other parts. Choose all these parts according to your budget.

2. Software

Choose the OS platform you want to work on. There are different OS platforms such as Windows, Mac OS, Linux etc.

What Is Summit Fever?

If you have ever thought about climbing Mount Everest then it is very likely that you will know all about the term Summit Fever. Many people have described it as an anticipation to reach the top of the mounting disregarding safety, and ethics, among other things. However, is Summit Fever a real thing? Or is it just a myth that was created to explain the actions of some climbers over the past couple of decades? Well, there are several theories that explain the so called Summit Fever.

There have been many examples of where Summit Fever has been mentioned in the media over the past couple of years that definitely do not paint the climbers in a positive light. For example, if you have read up about Mount Everest then you will probably have heard about Green Boots Cave. The reason this area of ​​the Death Zone on Mount Everest is called this is because there is a body of a climber in this area who has been nicknamed Green Boots, because of his luminous green climbing boots.

Several years ago there was a story running about come climbers who had come across Green Boots, which of course, they were already expecting to do. However, when they reached Green Boots they discovered what they thought was another corpse. However, it was actually a climber who was still alive, called Sharp. The climbers and the Sherpa decided that there was nothing that they could do for Sharp as he was past saving, and they continued on their way up to the top of Mount Everest. Several more climbers also came across Sharp, but still continued up the mountain in the aim of getting to the top. However, this raises several questions.

Why did not they put a halt to their expedition and try to get help for the stricken climber? He had no sleeping bag, and no radio to call for help himself. This is one of the cases in which Summit Fever has been mentioned. Another is the case of a young woman who despite she knew that she was in trouble, carried on up the mountain anyway. Other climbers have said that Summit Fever was the cause of her death. There are several things that have been mentioned as to why these climbers did what they did, even though it cost them their life, or someone else's life.

Some people have suggested that it is in part due to the fact that the cost of climbing Mount Everest is thousands of pounds, which makes the climber want to achieve what they came there to achieve. Others have said that climbers do not want to return as a failure. Whatever the reason, Summit Fever certainly raises questions about the ethics of mankind, and also the common sense. Surely if these climbers knew that they were in danger, or that someone else was in danger then they would have done something about it to prevent anything bad from happening? Appropriately not.

How to Turn Your Old Computer Into a New One

Do you feel ignor using the same old computer and want to sale it off? The market is buzzing with a number of new models and you can easily choose any of them. You have to spend a hefty amount for this. And the truth is after some days it will again become backdated and you will feel the need of buying a new computer. So, it is better to turn your old computer into a new one and save money. Do you want to know how? Go through the article.

First we will ask you to think why you want the new computer? The answer will certainly be the storage capacity, speed, graphics options, and screen resolution, etc. So, if you go for computer upgrades the problem will be resolved. Now, to perform this task, you can get in touch with a computer repair company that offers technical support to the computer users. Or else, you can perform the task on your own.

The speed and performance of your computer depend on memory. You can boost up PC speed by increasing the number of RAM. Do you know what type of RAM is there in your computer? There are different types of computer memory available in the market today. You must use the RAM as per the system specification. A computer service provider can help you in this context.

Apart from RAM, there are other two key components that you may consider for update. These are hard disk and graphics card. Upgrading the hard drive is considered as a must for all types of computer upgrades. You can store much more data, and install new programs by incorporating a new hard disk drive on your computer. Not only that, this will also boost the speed of your computer.

If you want a better display, you can go for a new monitor. LCD and LED monitors are very popular in the market. These monitors consume less power as compared to the CRT monitors. If you are using old CRT monitors, you can certainly think of replacing it with a new LCD or LED monitor. This will offer you new viewing experience and save your recurring expense as well.

These are some simple ways to turn your old computer into a new one. Try this and enjoy hassle-free computing.

Mobile Apps Development - The Right Marketing Strategy!

The craze of mobile apps is still on and many organizations are trying to capitalize on the demand. There are hordes of people who resort to text messages or chat when trying to communicate with their peers. With the advent of cheap smartphones, push e-mail and 3g connections are available in some reasonable models. Recent statistics reveal that most smartphone owners also possess credit cards signifying their money-spending power. This is indeed a very important statistic in regards to companies who are targeting the upper middle class who have a reasonable spending power and an important segment in the B2C sales scenario.

The difficulty is that it is hard to choose the best mobile technology. Although Android is ruling the roost today, iOS is not far behind and the elite class actually prefers the Apple OS to the Google counterpart. Mobile advertising is also a trendsetter and enterprises of different topics on their own. It is important to get the focus right.

More and more people are opting for mobile-optimized websites as many of them browse for information directly into their mobile handset. It is important for companies to have their websites mobile friendly and also focus on strategic apps which are relevant to your website.

The advantage with mobile apps is that a superior app provides a far better user experience than a mobile website which is blabbering about the company services. But the cost of a web app is something which is not well discussed and thought about. Graphic-intensive games are too costuring during production too.

Creating a native iPhone app from scratch is more difficult to make a similar app for its counterpart. If you want an Android or a Symbian app to replicate the success of a native app, one needs to develop the app from scratch.

There are so many companies which have come up to create and sell apps and most of the income is built upon direct charging for the app, in-app purchases, or subscriptions. There are indirect means of earning money too like the ads posted with the famous Angry Birds game app.

If you're intending to charge for your self-created mobile product, one should opt for creating a native app. Apps are normally free, and the whole part of marketing an app is to distribute it as broadly as possible. That mostly covers up the cost involved. It is important to gauge the reach of an app as to how many prospects and customers will the app reach finally? That is how the success of a mobile app can be assessed.

Multi Level Marketing Principles

Multi level marketing or MLM is a business model that creates an opportunity for the average person, who is teachable, and who has desire and perseverance, to earn extra income from the comforts of their home. Legitimate multi-level marketing companies usually require a small start-up cost. Multi-level marketing relies on selling to consumers and establishing a market for quality products. That is, once you have a happy customer (customer service is one of the things reps get compensated for, a potential reason it's not easy or to everyone's loving, and may be a reason so many do not succeed), you can rely on repeat sales and repeat missions. In the majority of multi-level marketing programs, commands are paid way down the line so the more people you and your team bring on, the better.

The multi level marketing form of business practice has received a fair amount of negative press and to be honest in some cases justifiably so. The reason for this is due to the number of pyramid schemes. Pyramid schemes, however, are not concerned with sales of the products. Pyramid sales involve schemes in which the right to sell new memberships in the pyramid are sold under the guise of selling a product. While you may find that some pyramid schemes will offer a product for sale, the product is sold from one level to another instead of selling to customers. Distributors at the bottom are then left with a large volume of overpriced goods that can not be sold. Neverheless, network marketing still has mass appeal to many individuals looking to escape the corporate world.

Before you start your journey into multi-level marketing, remember the simple fact that even the most successful products will have partial market penetration. Still, some entrepreneurs have built very successful companies on this concept because the main focus of their activities is their product and product sales. Remember, no marketing plan will ever decide your multi-level marketing success. Sell ​​yourself first, then the products and the marketing plan. Successful distributors, who have received and trained a large number of sellers, also have to assume unking wholesaling and managing responsibilities as well as making sales to their own retail customers. The most successful network marketers today are merely using their relationships to inspire others to purchase specific products. The ability to start with a program that you find interesting and beneficial to you is a key component to success.

Indeed, network marketing by its very nature entails that all participants strive to assist each other in making a successful business to enrich the group as a whole.