วันอาทิตย์ที่ 3 กุมภาพันธ์ พ.ศ. 2551

Technology

The World On The Lap Is The Laptop Notebook
By: Roberto Sedycias

The laptop notebook computer is a mobile computer that is small enough to be carted and kept on the lap while working. It does not weigh more than 1 to 6 kg. It is much smaller than its elder sibling - the desktop computer. A laptop does the same functions as the desktop one and therefore the parts are the same but of mini size. Instead of a mouse a touchpad does the tracking but if required a mouse can be attached. Internet tablets are used for the vital interspace link. The laptops have both good and bad points. Due to technical and economic hurdles the unit cannot be upgraded easily. Regarding health matters the laptop is blamed for low sperm count as it is kept continuously on the scrotum that causes the heat to rise to undesirable levels in this region of the body. To avoid it the mobile unit can be kept on the desk and does not necessarily have to be kept on the lap all the time.Another obvious problem is that laptops can easily be stolen. Laptops are relatively slow and have less sound and graphics capability. Laptops are much more costly than desktops but of late the gap is closing. However Laptops consume less power. The performance is more or less the same as the desktop models and new generation models are becoming more efficient and user friendly.How can such a small package hold such varied capabilities? Laptops and desktops run on the same principles but the difference is how the components are fitted and fixed. In a desktop there are motherboard, video card, hard drive etc. The monitor, keyboard and other incidental items are connected without wires or with cables but there is sufficient space for extra cards, cables while allowing for flow of air. In a laptop the screen and keyboard rests on the side of the box. The design of the laptop is small and flat wherein all the pieces fit in snugly. Thus the space is compact allowing for conservation of power and less production of heat. The CPU is the brain of the computer and a fan and heat sink system with plates and channels are required to cool it. But a laptop runs on a lower voltage resulting in less speed. Instead of pins and socket as in a desktop, in a laptop balls are used. However it means that the processor cannot be removed separately. The batteries of laptops that run fast suffer from being frequently run down. The Apple G4 processor tries to neutralize this defect. Laptops use mini sized fans, heat spreaders and heat sinks. Some use liquid coolants to keep down the temperature. The CPU`s of the laptops are placed near the edge of the box allowing for hot air to be released without flowing over other components. A laptop also has a hard disk drive wherein is stored the operating system, data and application files. The mechanism of memory differs from one laptop model to another. Usually smaller memory modules are used to economize on space. Both run on electricity but a laptop can also function on batteries. Every invention begins with a dream. In 1970 Alan Kay of Xerox had such a vision of a portable computer approximately the size of a notebook. He never went much ahead with the idea but set the balls rolling. In 1979 the first working portable computer was made by William Moggridge of Grid Systems. Others like Apple soon jumped in to complete the success story.

This article can also be accessed in portuguese language from the Article section of page
http://www.polomercantil.com.br/notebook.php , http://www.polomercantil.com.br/laptop.php Roberto Sedycias works as IT consultant for Polomercantil
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SIMUL8: A Helpful Simulation Tool for Business and Industry
By: Jp Online

SIMUL8 is used world-wide to help more and more businesses cut costs and maximize profit. Increasingly-competitive markets and customer demands for higher quality are precipitating many changes in the way that companies conduct business. Business managers need state-of-the-art tools to help them make decisions in markets that are becoming more and more complex.IMPORTANCE OF SIMUL8One major challenge is that businesses in areas such as manufacturing cannot afford to halt production while their engineers conduct experiments. The SIMUL8 simulation software can be effectively used in situations like this. In the manufacturing example, the software could be manipulated to create a representation of the facility in question. When the model has been validated against historical information, the simulation could be used to test and evaluate various scenarios. This would result in an in-depth analysis of the alternatives to determine the best implementation required to improve the overall system.Companies like Visual8 use the SIMUL8 software to help clients from a variety of settings to achieve their desired business solutions. While testing in real life can be desirable, in many cases it is not a feasible option. The SIMUL8 software provides a reliable alternative that helps provide decision-makers with realistic analyses.The SIMUL8 simulation software is one of the best tools available when it comes to building simulation models, regardless of size and intricacy. These models can be used in the planning and design of a wide variety of business and manufacturing systems, and can provide a daily analysis of operations.Many managers and engineers rely on SIMUL8 because it is one of the best tools around for building models and executing various scenarios. SIMUL8 also now has the capability to reuse different objects that you have used in previous models, which results in greater efficiency for you. SIMUL8 also comes packaged with a statistical analysis software tool named Stat::Fit and an optimization software tool named OptQuest. These tools are packaged to make your simulations more efficient and useful.EASY TO USESIMUL8 software is a user friendly off-the-shelf tool available on the market for simulation modeling. It combines an easy-to-use object-orientated build environment with advanced logic and spreadsheet tools to enable efficient model development. SIMUL8 also provides free user support via the web; an online discussion forum; and a free e-newsletter that contains case studies, hints, and tips on using SIMUL8.A great facet of this software is the variety of printable reports that are available. Tables and graphics are displayed to show the performance of the represented system during and / or after the simulation is complete. Simulation is currently experiencing huge growth in the business world as companies realize that this technique can increase productivity and make operations run more efficiently. Analyses using a software package like SIMUL8 often result in hundreds of thousands of dollars in savings.

SIMUL8 software at http://www.visual8.com/simul8.html. Visual8 can streamline your production processes or supply chain.
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Hardware and Software requirements for VoIP
By: Kristen Kiya

Voice over Internet telephony has changed the way we communicate. The innovative, flexible and scalable solutions have engineered a revolution of sorts in the present day world. The concept of virtual area codes can be mentioned in this context. VoIP users can opt for this service and select an area that is distinctly different from where they live. They can then enjoy facilities such as unlimited long distance calls to friends and family members living in that area code. This way, they are able to save money while connecting at different levels with the people who matter. This is another area wherein the VoIP solutions have scored over the traditional phone services. Businesses can also make the most of this high-end technology and use it to their advantage. They can, for instance, think about enhancing their scope and areas of operation, by floating local numbers in potential markets. It is quite evident that they would be getting more leads due to the low costs of local calls. When the number to be called is a local one, more people from target market segments are expected to call in. The point is that the VoIP market is more than ready for the best of products and services. The only thing is that certain conditions need to be met for the successful implementation of this innovative technology. For instance, a computer with a high speed Internet access is a must-have. The computer should be updated with audio and video codes. This ensures that the persons using the VoIP products and services are not disappointed with the quality of the audio as well as graphics. Another pre-requisite is that the digital video compression format should also be present in the computer that is being used. Moreover, another important requirement is the telephone adapter, which is often delivered by the voice over IP service providers, as an integral part of VoIP packages. As a matter of fact, this VoIP hardware is indispensable for converting the household phone into one that can be used for making Internet enabled calls. Most important, the hardware and software of VoIP that are needed for the successful running of IP solutions have to be implemented properly through a proper procedure of software installation and hardware activation. Quite a few service providers are currently present in the market which can help end users to get initiated. As a matter of fact, due to the many choices that are available, it often becomes difficult for potential users to zero in on particular service providers. In this context, a VoIP requirements list becomes indispensable. It is preferable that potential users should go for VoIP wholesalers or resellers that have established themselves well in this domain. The quality of services also becomes important in this context. It is quite natural that potential users would want to get the most for the money that they spend. So, it is quite evident that they would check out the features and costs of the VoIP solutions and services on offer. They would then be able to match the same with their requirements and select solutions that best satisfy their needs. Certain parameters that need special attention include the financial stability of the company, the technical support that the company offers, and last but most important, the overall voice quality.

To know more about these services and solutions, visit:
VoIP Service and VoIP Solutions.
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http://www.ArticleBiz.com




PC phones - Ensuring cost efficiencies in communication
By: Angela Hayden

The business of VoIP telephony is getting interesting by the day. On one hand, new and innovative solutions are coming up that have made long-distance communication more personal while on the other hand, more and more users - both corporate and individual - are shifting their focus to this domain thereby building up a demand for further innovation. Entrepreneurs are now making the most of this opportunity to sell PC to phone services to end users. It can be said with a lot of conviction that PC to phone solutions are no longer limited to a selected few. Analog phones are no longer in use, and even mobile phones are now facing tough competition. The new player in this segment is the PC phone - which is being preferred due to its ease of use and low calling costs. Long distance and international calls can now be made at a lower cost using PC phones. As a matter of fact, using a personal computer for making cheap long distance calls is quite an innovative idea that entrepreneurs can cash upon. After all, who would not want a VoIP PC to phone service that can be used to make cheap long distance phone calls? This is all the more true for people having friends and relatives in different parts of the world. Thus, it can be rightly said that a more than adequate demand exists for these solutions. Moreover, several service providers have come up that offer VoIP based broadband phone services to the end users - who could be either individuals or institutions. Corporates with a futuristic vision and the desire to enhance their scope of operations are making the most of these offers and venturing into the profitable business of IP telephony. The VoIP platform providers ensure that users are able to make long distance calls anywhere in the world. The instant delivery of solutions guarantee the much necessary freedom to end-users, which in turn open up a whole new domain of business possibilities - waiting to be explored. And when these high end capabilities are matched with cost efficiencies - then the end users have nothing more that they could wish for. This revolutionary PC to phone communication technology is thus leaving an impact. So, whether it is for enhancing organisational communication or making more direct contact with end users and customers, PC phone solutions are benefiting the industry in more ways than one.

To know more about these services and solutions, visit:
PC to Phone solutions provided by one of the best VoIP Platform provider.
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http://www.ArticleBiz.com




The Pros And Cons Of A Laptop
By: Roberto Sedycias

A laptop, also called a notebook, is a small mobile computer. Depending on the size, material used for manufacturing it and other factors, its weight ranges from 1 to 8 kilograms (i.e. 2 to 18 pounds). The source of power is usually a single main battery, or an external AC/DC adapter is used. Apart from supplying power to the laptop, it also charges the battery. To avoid havoc in case of power failure, a 3 Volt cell is provided to run the clock and other vital system processes. Though laptops are equally capable and powerful as desktop computers, they are much more expensive than similar capability and configuration desktop computer. Size is the unique property of a laptop. The components used in both, laptops and desktops are the same in terms of the functions they perform, but the components in laptops are miniaturized and made to support efficient power consumption. LCD (Liquid Crystal Display) is usually the technology used for the display screen. They have a built-in keyboard and a touchpad as input devices. Provision is also made for connection of external mouse, and even keyboard. Apart from the advantages like compactness and mobility, a set of disadvantages has also been associated with laptops.A huge amount of discrepancy is observed when it comes to standardization issues of laptops. There exist worldwide standards for form factors of the peripherals and add-in PC cards used in a desktop computer. But no such standards are as yet enforced for form factors of laptop internals. Electric voltage, motherboard layouts, internal adapters used in connecting the hard disk, optical drive, LCD cable, keyboard and floppy drive to the main board, all still face issues with standardization. These hits hard on the poor user who is uneducated in this relevant field. Apart from them, a bit of difficulty may also be faced by the repair technicians. Familiarization of different parts and hardware that perform the same function is important.As an outcome of the improper, or all most no standardization, the laptops suffer compatibility problems too. Most of the times, it is not possible to use one manufacturer`s components in the laptop produced by another manufacturer. The reasons behind this can be assurance of product stability, prolong product lifetime, and to avoid dubious warranty issues. Some manufacturers provide the laptops with a set of ports to let the user connect the hardware that he wants to use.Upgradation of a laptop is another issue. Due to both technical and economic reasons, it is limited. Due to the proprietary designs of the laptops by each manufacture, it is difficult to upgrade them and most of the times even repairing is a costly affair. The standard peripherals, like audio, video, USB, 1394, Wi Fi, Bluetooth, are integrated in the motherboard. Upgrading these thus requires either of external ports, card slots or wireless peripherals. As far as the memory units and batteries are concerned, they can generally be upgraded according to the user`s needs.

This article can also be accessed in portuguese language from the Article section of page http://www.polomercantil.com.br/notebook.php , http://www.polomercantil.com.br/laptop.php Roberto Sedycias works as IT consultant for Polomercantil
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