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A few years ago, pc gaming on laptops and notebooks was nonexistant because they lacked the necessary hardware to play games adequately. First off, I am not talking about games like solitaire or any other simple pc game. I am talking about games like Crysis, Age of Conan, Counterstrike, Grand Theft Auto, and so forth. All these computer games require decent graphics cards and the majority of all onboard graphics cards will not suffice to play these games. So, let us get down to the specs.

CPU:
These days, you will find only dual core and quad core cpu’s available for gaming notebooks. So, which do you need. The majority of all games will not use multiple cores. Actually, many do not even use two cores. However, having a fast quad core does not hurt because it can actually help with loading the game and loading the maps but the actual gameplay will still only use one or two cores. So, the best option if you consider pricing is to go with a good, fast, dual core cpu. For example, in this case, it would be better to go with a 3.0GHz Dual Core than a 2.4GHz Quad Core.

Memory:
For new computer purchases, your only option is Vista now. XP is going End of Life at the end of June so you will only be able to purchase computers with Windows Vista now. With Windows Vista, the minimum amount of ram I would recommend is 2GB. 4GB is not necessary but it does not hurt so it is up to you. But remember this, with Windows Vista 32bit, the operating system will only recognize around 3 to 3.5GB of memory. To use all 4GB of memory, you should go with a 64bit operating system.

Graphics Card:
The graphics card is the single most important hardware for a gaming computer. The majority of the hardware requirements needed for pc gaming is the graphics card. Integrated, onboard, graphics cards will not suffice for most of the pc games on the market. You need a discrete graphics card from nVidia or ATI. The best gaming notebooks on the market today use nVidia graphics cards like the 8800GT or the 8800GTX cards and with SLI configurations, which is basically two graphics cards working together to split the workload. However, with SLI configurations on a notebook, you may run into overheating issues and of course battey usage issues. Discrete graphics cards produce quite a bit of heat and with two of them in a notebook, this is something you have to watch out for.

Battery usage:
This is not a spec per say but it is more of a warning. Most notebooks have a couple of hours of usage but the harder you use your notebook, the shorter the usage time, right? Once you start a game, your notebook usage for everything, cpu, memory, graphics cards, etc., skyrocket and if you are on battery power trying to play a game, you can count on only having less than 30 minutes of usage on a full charge. So, gaming on the go is not very practical.

Weight:
The other thing is that even though you may not be gaming, gaming notebooks have a bigger battery usage right away with all the extra hardware. This actually means that you may be getting a bigger battery just to compensate so that you still get at least a couple of hours of normal usage. With all the extra hardware and a bigger battery, you may be getting a notebook that is much heavier than other regular usage notebooks.

George Yang is a Product Engineer at a computer company that deals with custom configurations for desktops and notebooks. http://www.gamersnotebooks.com/

The market for notebook is growing exponentially these days. According to a recently survey, notebook market is growing at a rate of over 20% annually in the North American region.

Consumers are increasingly turning to notebook from their old desktop computers. As the manufactures are introducing exciting new features and accessories with their products to offer their consumers a whole new computing experience, many people are can`t help replacing their old desktop computers with swanky and portable notebooks. The other reason for the skyrocketing popularity of them is their decreasing in value.

A recently survey indicates that the notebook manufacturers are constantly slashing the prices of their notebook products to target new consumer segments and create a niche for their products. As a result of the slashing price of the notebooks, more and more people are gaining access to using these portable computing devices these days. Be it a student, a working professional or a businessman, everybody prefers notebook over a desktop computer for its portability factor.

The widespread use of notebooks is the main reason why many computer manufacturers have introduced a wide range of notebook add-ons and other accessories that not only enhance the users` computing experience but also make working with a notebook safer. Let`s take a look at some of the most exciting notebook accessories you can buy:

Surge Protector: Your notebook is an expensive device and it runs on power. More often than not, you use the power adaptor with the wall outlet to charge it. However, an unexpected power surge can damage your notebook`s motherboard. This is where a surge protector can help you. Just use it between the wall outlet and the power adaptor for an additional level of safety. It`s light, portable and can be carried around in your notebook bag.

Cooling Stand: Notebooks are notorious for their heat when you use them for long duration. Although notebooks or laptops (as they say it) are meant for using on lap, it`s not actually possible to do so unless you use a cooling stand between your notebook and you lap. A notebook cooling stand will keep your notebook cool with a built-in fan. Besides, some cooling stands can also enhance the cooling convection and help your laptop save power. If you are working for long duration on notebook, cooling stand is must-have for you.

The Stand: Notebooks needn`t always be used on the lap. At times, you may want to use it like a desktop PC. A stand has been designed to help your notebook prop up on a desk and use it with a full-size USB keyboard. When you are done with your work, you can disconnect you USB keyboard and go.

Bluetooth GPS: A Bluetooth GPS (Global Positioning System) is ideal for those who use GPS device to keep track of certain things. While a full-fledged GPS device may seem expensive to you, you can use this Bluetooth GPS with your notebook with the help of and internet wireless modem and Google Map installed on your notebook.

Laptop Speakers: If you want to watch any Hollywood action-packed flick on your notebook, but its sound quality is just not as impressive, just add a pair of small and portable speakers to your notebook and experience the enhanced sound quality on your notebook. They are portable and can be carried around wherever you go.

Notebook Bagpack: If you are techno junky and prefer to carry most of your devices including your notebook and its accessories, a bagpack is the just the one for you. Light in weight and stunning in design, a notebook bagpack lets you carry your digital world around with you.

This article can be accessed in portuguese from the Article section of page http://www.polomercantil.com.br/notebook.php

Roberto Sedycias works as IT consultant for http://www.polomercantil.com.br

We have come a long way since notebooks came to the market for the first time. Back then a notebook was not only heavier in weight but also lacked features that are very common in the modern notebooks. For instance, few would have ever imagined to get connected to the Internet sitting at the balcony in wireless environs with the help of a built-in wireless card in their notebook.

Similarly, the notebooks in their earlier incarnations didn`t carry enough space to store a collection of your favorite movies. Thanks to the constant innovation in the notebook technology, we have been getting more facilities than we can ask for. As the demand of the business travelers for efficient notebooks are on the rise, notebooks manufacturers are investing time and resources to find answers for their targeted consumers.

Needless to say, modern notebooks have brought with them a wide array of user-friendly features. However, not every notebook has all the features you would expect for convenience. The ones that have rich and convenient features such as more storage facility, faster processing speed and lighter weight come with a price tag that beyond the reach of many. Moreover, they have been manufactured keeping in mind of the specific needs of the notebooks users. Hence, those who don`t need these rich features shouldn`t worry about their higher price range.

Given the tricky terrain of choosing a notebook, a few tips on how to take the right plunge will surely do a world of good to the notebook buyers. Here they go:

CPU: Let`s face it- the most important requirement for a convenient computing experience is the processing speed. Irrespective of their requirements, most buyers prefer to buy notebooks with Dual Core chips. However, they will cost your higher than most of the low-budget notebooks. If you want a combination of economy and mobility, you will find several low-budget notebooks with the Intel`s Celeron processors. Although they aren`t they super performer in terms of process speed, they, however, will be suitable for most of your basic computing needs.

RAM: Technically, if your notebook has a good RAM as per your specific requirements, you will always enjoy working on your laptop. When it comes to the RAM of a notebook, it largely depends on your particular computing needs. For instance, if you wish to run some basic applications, a RAM of 1 GB should be fine. Likewise, a 1.5 GB RAM will be essential for your notebook if you are thinking of photo editing and basic 3D gaming apart from running the basic applications. Consider a 2GB or higher RAM as a part of your notebook`s configuration if you are serious about high-end graphic work, video editing and high-performance 3D gaming.

Portability: Notebook manufactures have always roped in the portability factor to promote their new editions of notebooks. Most of the notebook ads boast of the slim factor of the featured notebook. While a slim and light notebook is definitely better for frequent fliers, these notebooks are usually lack some additional features such as internal optical drives, large and fast hard drives, and extra ports. Besides, while most notebook promos brag about their light-weight, practically, your notebook carry bag will include the weight of your power adapter among other accessories. So, the total weight of your laptop carry bag will go well beyond what you have seen on those promos.

Price and Warranty: Most low-priced notebooks are not ideal if you are working on them for long hours. Some of their components may not withstand the demanding work schedules and are likely to through problems within a shorter span of time. Also, you are less likely to get an extended warranty on these shoe-string budget notebooks. Preferably, you should go for a notebook that is that offers you at least a 3-year warranty. Although it will cost you a little higher than your projected budget, it always pays off in the long run. Remember, you don`t buy notebooks every year.

This article can be accessed in portuguese from the Article section of page http://www.polomercantil.com.br/notebook.php

Roberto Sedycias works as IT consultant for http://www.polomercantil.com.br

When we hear the word `notebook` the first thought that strikes our grey matter is a writing device in the form of a book usually made of paper. We generally imagine it in various forms like notepad, writing pad, or simply a scrapbook. Its use is generally determined by its size - not forgetting the general saying `the smaller, the better`.

The concept (of notebooks) which started as a collection of leaves somewhere in ancient Rome has today taken the shape of a latest electronic device called the `laptop`. Laptops were named `notebooks` probably because of their small size inspite of the fact that originally they did not have any note-taking ability.

Initially laptops had integrated screen and keyboard and were more like `suitcase computers` but with advancements in technology they kept getting smaller in size with enhanced features. Laptops were referred to as notebooks when they had condensed in size comparable almost to a paper notebook. Moving a step further we got something called PDA`s (Personal Digital Assistants) which were a little larger than portfolio notebooks and were named `notebook` to differentiate them from general laptops. In common man`s words these were called `Palm tops`.

The quest for comfort did not end with the PDA`s. Moving a step further we got a much better and advanced version of PDA s called the `Tablet PC`s`. Tablet PC`s are laptops or rather notebooks that have a special pen and software with which we can interact with the screen directly. So it was a kind where we can actually write on with a pen - a real master piece in the world of science! Here the screen itself is used as the Input-Output device rather than the Mouse or the Keyboard. Moreover these PDA`s and Palmtops use flash memory and they do not use the same OS or hardware as used by the typical laptop and notebooks.

Today notebook refers to laptops that can have their windows reversed to make it into a notebook and can be written on like a tablet. It can be used for making handwritten notes in class or to make sketches and drawings that can later be used as notes.

What makes the notebook indispensable is its portability, efficiency coming next to it. Today we are not under the constraints of working for fixed hours in office; our work can come home with us, thus, providing us with a more comfortable and relaxed environment. Other than that the notebook occupies the least possible space on the desk and saves us from the tangles of wires. To top it all the sleek, sensuous look of the portable notebooks makes it the most desirable asset today.

As the saying goes, if you want to gain something you should be ready to lose some too. Here the loosing factor comes in the face of money. This piece of sophisticated technology is twice as expensive as its desktop counterpart or sometimes even more than that. But since all good things come in small packages, the notebook as well should be accepted with its exorbitant price realizing the fact that it is paving the way for a simpler and efficient future.

Despite the notebooks being smaller and elegant, it is a bitter fact that it can never completely take over the desktop. The reason being the deficiency of space to fit in all the components and the lack of escape routes for heat. Moreover upgrading the hardware in a notebook becomes an overpriced task and can be done much easily and reasonably in a desktop.

Inspite of these various shortcomings the fact remains that the era of literature and arts has been succeeded by the scientific era with computer being at the centre of this renaissance.

This article can be accessed in portuguese from the Article section of page http://www.polomercantil.com.br/notebook.php

Roberto Sedycias works as IT consultant for http://www.polomercantil.com.br

There are several key features that are required to deliver the optimal gaming experience on laptops.

GRAPHICS: First, the best laptop for gaming, will have the best, quickest and latest possible graphics. When considering a laptop with the purpose of gaming make sure to look for the latest graphics card as well as the quality of the graphic chipset. Also be sure to check the specs of the laptop to see if you could upgrade the graphics card on your laptop as the need arises (for most laptops this is standard).

Some of the best graphic chipsets are NVIDIA, ATi Mobility Radeon 9700, Intel’s Graphics Media, or ATi’s Mobility FireGL V3200.

The ATI Mobility Radeon 9700 graphic chipset will make your laptop perform a variety of functions, including 3D, HDTV, mobile video editing studio and graphic processor. Also the Radeon 9700 is not only a quality Graphics Card it will also give you better performance while saving battery power.

Other common graphic chipsets include, Trident S3, STMicro, 3D Labs, Matrox, and SIS.

RAM: RAM is a crucial factor in getting the best laptop for gaming. Simply put RAM, or random access memory, refers to the amount of programs you can run on your laptops without running into slow downs. 512MB of ram is optimal for the serious gamers as this will allow for the large memory needed to run graphics that are required for gaming. Basically more RAM equals a better laptop for gaming. Some laptops come with as much as 2GB of RAM! RAM is essential for running video graphics, 3D, and for gaming in general.

Laptops also have what is called dedicated video RAM (VRAM) that is memory, which usually comes with a graphics card (ATI Radeon, NVIDIA GeForce, etc…) and has its own memory in MB which includes 32MB, 64MB, and 128MB. This is a special RAM that is used by the video adapters inside the laptop and only handles graphics and visuals. VRAM is especially helpful for 3D gaming. Today NVIDIA nForce is considered as one of the best graphics card.

Overall the best option for gaming is to pick a laptop with the highest VRAM graphics card you can afford. A good way to find out what memory you might need is to refer to the back of your games or media software CD-case or manual to see the “system requirements” for the video memory requirements.

The best laptop for gaming has lots of CPU speed. Nothing is more annoying than to be in the middle of a game and have the computer freeze or crash. The processor is the computers brain or center and the quality determines how your computer will perform. The speed of a processor is presented in gigahertz (GHz}. While there are many brands and types of processors, one of the best available today is the Intel Core 2 Duo. And the best laptop for gaming has a speed of 2.4GHz or more.

As far as the hard drive goes, it is best to go with a SATA. SATA, or Serial Advanced Technology Architecture is best for laptops, it uses less power than other hard drives and is not limited to a particular clock speed. Make sure to check the hard drive speed, 7200rpm is the highest and best for for a gaming laptop.

SCREEN/DISPLAY: The screen specifications for gaming laptops play an important role. Obviously the bigger the better, a 17 inch wide screen will deliver a magnificent gaming experience. Resolution and display quality should be able to handle the graphics for 3D gaming.

While there are several display resolutions available, today the best is WUXGA, which stands for Widescreen Ultra eXtended Graphics Array and is a display resolution of 1920 by 1200 pixels (2,304,000 pixels) with a 16:10 screen aspect ratio.

So in the end the best laptop for gaming is a combination of graphics, ram, processor speed and screen display. Keeping this formula in mind when purchasing your gaming laptop will provide you with the ultimate gaming experience.

Because of these superior features gaming laptops come with a huge retail price tag. Something to consider is in a world where the Internet provides a huge arena where lots of sellers and merchants compete for your business, lots of money can be saved by avoiding retail merchants and purchasing a laptop for gaming at a discount.

You can browse a large selection of gaming laptops as well as all models of laptops and accessories, and read more helpful buying guides for laptops at: http://www.shop4laptop.com/

A laptop, is simply a portable computer that runs on a battery and can be used anywhere without being stuck to a plug.

When determining how to buy a laptop there are certain features that are important to look at as well as knowing the purpose the laptop will serve for you. For example, if your are going to use the laptop primarily for gaming then the features you will want to get will be different than those of a laptop for business.

An important factor to look at when buying a laptop is the Processor. The processor of a laptop determines how fast a computer is and the speed is given in GHz. The Intel Core 2 Duo is one of the best in processors. The Core 2 Provides superior performance at half the cost of other similar types as well as a great battery life. 1.73 GHz processor is more than sufficient for everyday work like word processing, spreadsheets, email, gaming and internet surfing.

Memory(RAM)is another crucial factor when buying a laptop. RAM refers to the amount of programs you can run on your laptop without running into slow downs and causing your laptop to drag. 512MB RAM is the optimal amount of memory for any purpose and the best option for gaming and 3-D graphics. Buying Tip: The RAM the laptop supports tells you the most memory you will ever be able to upgrade to.

Another factor in buying a laptop is the HARD DRIVE. Generally speaking a 40-80 GB hard drive is more than sufficient unless you plan to generate mass amounts of music or data files or you want to install more than one suite like Microsoft Office.

Laptop Weight is another thing to consider when buying a laptop. A 5 pound plus laptop is best. Ultra light laptops, below 4 pounds have cramped keyboards, less speed and memory, usually no CD or DVD drive and smaller screens. If you buy an ultra-light laptop, its performance may be so compromised that after all of the accessories you carry with it are added up (a CD drive, a larger battery, a better keyboard, etc…) it may weigh as much as a regular 5 or 6 lb laptop.

Another feature to look at is Ports. Simply put a port is a specialized outlet on the back of a computer to which a plug or cable connects. (If you’d read the techie definition you would have passed out by now). The more ports you have the more variety you will have. You should have at least one USB (multipurpose, very useful port), at least one VGA (video connection to external monitor/ projector), an Ethernet Port for wired Internet connection, Headphone and Microphone ports.

Other ports include: FireWire port for iPod connections. S-video port for video output. Printer port for printers. PC card slots (card bus), which provide a large variety of functions. You can usually buy a PC card to replace any type of port.

Another good option for buying a laptop is choosing an All-In-One design. All-in-one design is best unless you really need a lightweight laptop because it comes with with an internal bay for the optical drive. Simply put this drive is very beneficial and lets you to swap in other devices, such as an extra hard drive or a second battery.

Screen Size is another feature of laptop computers. When buying a laptop, you don’t want to sacrifice viewing comfort in order to gain portability. A screen larger than 14 inches is best to avoid strain on the eyes. The screen size dimension of laptops is measured diagonally across the screen. Larger screens or wide screens result in heavier laptops and are more bulky but do provide a more comfortable experience whether you’re surfing the net, watching movies or playing games.

More screen viewing options to consider: An anti-glare feature is very beneficial when you don’t want to have part of your screen invisible due to a light source. Outside-readable screens are made to use in very bright light (outside) and are very costly. Wide Screen viewing angle is important if you don’t like decreased visibility when you move your head to the side.

Wireless Internet Capability is necessary if you’d like to surf the net without being tied to a wire. One of the best things about laptops is that you could surf the net anywhere and WI-FI provides just that. Wireless cards are easily installed into most laptops.

The Keyboard is another important factor in buying a laptop. The keyboard should be full size or it will take some time to adjust, and mini keyboards are quite uncomfortable to use. Buying Tip: Look for the percent of full size when looking at the keyboard features of a laptop.

Mouse Options are very important in choosing a laptop. Option 1: is a touch screen, which is controlled with finger movements on a pad. Option 2: is a knob feature that lets you control the mouse by moving the finger in only one spot. This feature is harder to adjust and unless you have a preference get the touch panel. Option 3: Best get both a touch screen and knob on your laptop. Buying Tip: You can always hook up a standard mouse to your laptop (that is when using the laptop on a flat surface and not on your lap.

The Battery is another important factor in buying a laptop. Watt-hours determine the life of a battery. Lithium batteries use cells to determine life, more cells equals more life. Usually a laptop needs a new battery every 1 to 5 years. The way you determine battery consumption depends on how you use the laptop. Please note that most battery ratings are given for a laptop running minimal processes which does not include Internet usage, graphics, power-save mode etc. Buying Tip: If you want more more freedom from the outlet buy a laptop that has a modular bay which is capable of holding a supplementary power pack.

Audio is a feature of laptops that maybe pertinent if listening to music is a high priority. Media Centers have higher quality speakers built-in. Laptops that save weight and space will have small speakers which give just an okay sound quality and quieter music.

Video and Graphics are important features in buying a laptop computer and have multiple uses, such as playing and editing movies and is really crucial for 3D gaming. Dedicated memory usually comes with a graphics card (ATI Radeon, GeForce, etc…) and has its own memory in MB which includes 32MB, 64MB, and 128MB. Buying Tip: If video/gaming is important to you pick the highest one you can afford. Buying Tip: To get an idea of what memory you might need you can refer to the back of your games or media software CD-case or manual to see the “system requirements” for the video memory requirements.

Warranty is another factor to consider when buying a laptop. A laptop with a warranty can save money down the road. Buying Tip: If the laptop you wish to purchase comes with a warranty check to see if they cover shipping charges in the event you need to send it in for repair. There are also warranties that cover an in-home repair.

Laptop Security is very important in protecting laptop and personal data. Since laptops are portable and mobile, security is important to protect your laptop and data from theft. A variety of methods are available including lock cables, biometric fingerprint readers, data encryption software and laptop anti-theft alarms. Buying Tip: Some laptops do come with a biometric reader included. Cables and other items mentioned are purchased separately.

This laptop buying guide outlines general features, the brand of laptop is important and should be considered in regard to personal use and budget. For example Dell is considered to have the best gaming laptops like the XPS M1710. The Toshiba Oosmio is the best multi-media type of laptop providing exceptional video and audio experience. Most affordable laptops are HP Compaq Presario V 5000Z and the GATEWAY NX100X. The key to buying the right laptop is determining personal use and then buying the one that has the most features for the right price.

JR Lang is a computer applications specialist and small business owner. To browse and buy all brands and models of low price laptops including used cheap laptops please visit: http://www.shop4laptop.com

The main attraction of laptops is their portability and mobility. It is great to be able to take your computer with you and use it anywhere. But with these benefits comes a risk of theft. Obviously theft is more likely to happen when an object can be picked up and carried away. Laptop security devices are important to prevent your laptop from being stolen as well as to prevent the data from your laptop being retrieved and used in the event that your laptop is a victim of theft.

10 TIPS TO PREVENT LAPTOP THEFT

1. The biggest mistake people make with their laptops and other valuables for that matter is leaving them in plain sight in their cars. There has been a rash of car burglaries lately stemming from electronics being left on car seats or floors. Don’t think for a minute that thieves are deterred by the fact that your car is in a crowded mall parking or even at the gas station, thieves are bold and if they see it they can take it. Always lock your laptop and all valuables in the trunk.

2. Don’t use computer bags, while these maybe fashionable and comfortable they make it obvious that you are carrying a laptop. Try using a padded briefcase or suitcase instead.

3. Make sure your laptop is always with you. Do not check laptops in with your luggage while traveling. Never leave your laptop in your car in plain sight. Lock it in the trunk.

4. Never leave access numbers or passwords in your carrying case. Keeping your password with your laptop is like keeping the keys in the car. Without your password or important access numbers it will be more difficult for a thief to access your personal and corporate information.

5. Keep your eye on your laptop. When you go through airport security don’t lose sight of your bag. Hold your bag until the person in front of you has gone through the metal detector. Many bags look alike and yours can easily be lost in the shuffle.

6. Avoid setting your laptop on the floor. Putting your laptop on the floor is an easy way to forget or lose track of it. If you have to set it down, try to place it between your feet or against your leg so that you are always aware it’s there.

7. Use a screen guard when in public. This prevents people from looking over your shoulder and seeing sensitive information. This is especially helpful when you’re traveling or need to work in a crowded area.

8. Do not leave your laptop unsecured in your hotel room. Things sometimes tend to get lost in hotel rooms and are never secure. If you must leave your laptop in the room then use a security cable to attach it to a stable object, such as the desk or bedpost. Another good thing to do is leave the “do not disturb” sign on the door.

9. Label everything possible with the owner’s name and make sure these labels are conspicuous. The value of laptop or peripheral diminishes greatly when the thief is required to remove identifying labels. Also identifying labels increase the potential of catching a thief in the act.

10. Buy a laptop security device. The next section details some options for laptop security devices.

LAPTOP SECURITY DEVICE:

1. Security Cable for Laptop Computer: One of the most inexpensive and effective laptop security devices is a cable. Very much like a bicycle lock, this cable attaches to your laptop and allows you to lock it to a stationary object. The cable makes it much more difficult for someone to steal your laptop.

2. Laptop Tracing Programs. Very much like LoJack for cars these programs will report the location of a stolen laptop. They work when the laptop connects to the Internet, and can report the laptop’s exact physical location. Some tracing programs include CyberAngel and ComputracePlus.

3. Motion Sensors and Alarms: Unexpected loud noises make people wake up and take notice, something that aspiring thieves find very discouraging. Laptop security companies realize this and have created alarms for portable computers.

Signaling mechanisms of these alarm systems are usually the same, but, the triggering mechanisms are both varied and specialized. TrackIt Corporation has a product available that creates a “maximum separation zone” around the user and the laptop. The idea is that if the user moves out of range of the device, or the laptop is moved out of range of the user, the alarm will sound. Thus, if someone tries to steal or remove the laptop, the alarm will sound, drawing attention to the theft. Another possibility is to buy an alarm that relies on nothing more than movement of the object that it is attached to. Fellowes provides just such a device that users can attach to the laptop. If the object that the sensor is attached to is moved, an alarm will sound. Entering the 3-digit security code will reset or disable the alarm once the device has been recovered.

LAPTOP SECURITY DEVICES PROTECTING DATA ON LAPTOPS:
Security measures are available in order to prevent access to data on your laptop especially in the event that the laptop is stolen or missing.

1. Set a BIOS password:
Most laptops offer protection by allowing the owner to set a boot password. Typically most will prompt the user three times to enter a password, then refuse to boot if there are three failures.

2. Set a Login Password:
To successfully login to the computer, the user must provide a login name and password. If the information entered is incorrect, the operating system will refuse to allow entry.

3. Encryption:
One of the best laptop security devices are file encryption programs, which, encrypt files on your laptop. A private unlock key is provided to the user, and as long as your private key is kept safe, no one but you and your intended recipients will be able to view your data.

4. Biometric Fingerprint Readers:
Another great laptop security device is the Biometric Reader. The idea behind biometrics is to use the uniqueness of certain features of a user, such as fingerprints, and even typing characteristics, to accurately identify and authorize persons. This type of laptop security device would provide a hardware level of authentication that would require authentication before the machine would even boot up.

JR Lang is a computer applications specialist. To browse the lowest priced laptop security devices please visit: http://www/shop4laptop.com

Notebook or laptop computer is a portable computer that can be easily carried around, and is capable of performing all possible functions of a computer. Notebook, that usually weighs around 2.2 to about 18 pounds, comes in various sizes and varied possible features.

Unlike most other electronic goods, learning how to use a notebook is no big deal. People, who are used to working on computers, find notebooks almost as convenient to use as they have been using it already. However, the touchpad or the trackpads (that are used in place of the mouse), or the pointing sticks might pose slight difficulty for the beginners, though they can conveniently attach a mouse externally. Nevertheless, the fact that notebooks bear such great resemblance to computers surely serves as a great advantage to the users.

These days notebook can also read as well as write CDs and DVDs. They are also capable of copying and transferring data using Bluetooth devices. Most of the times, these are built in the notebooks, though one may need to attach them externally if the features have not been already provided beforehand. Pen drives, etc, can also be used on notebooks for exchanging data. Notebooks also allow the benefits of using internet connection after proper configuration has been done. Microphones and web cameras can also be used with the notebooks these days.

These days there are various kinds of notebooks that are available in the market. These can be broadly classified as Ultra-Mobile PCs (or the UMPCs), the desktop replacement computers and the ultraportables. While the Ultra-Mobile PCs are laptops that can be easily carried around owing to their extra small size, the powerful desktop replacement computers are mostly to be used in a fixed place. They are more bulky and weigh more as compared to the expensive ultraportables that are specifically meant for those business travelers who need small as well as light weight notebooks that can be easily carried around, while traveling around.

Notebooks are especially useful to those who have to work on computers for long hours, or are heavily depended on computers for their work. Though notebooks may not be as powerful as computers tend to be for the same price range, they are capable of performing all the functions that any computer would perform. There are a number of varieties one can choose from and the special features, included in each notebook, vary from one model to another. Much it depends on the price range and the manufacturer.

The main source of power for a notebook is its main battery, and the external adapter, that is used for charging the battery, from time to time. This allows the user to work on his or her laptop for hours together, without having to connect it with any wires, till the battery exhausts. The time taken for charging the battery varies from one notebook to another, though usually it does not take more than a few hours to charge them.

With each passing day, and new developments in technology, notebooks are becoming more and more popular among the people all over the world. Though these were initially meant for the business class, who had grown dependent on their computers, these days notebooks are being used by almost anybody and everybody.

The falling prices, reducing sizes and growing features are surely making notebooks one of the most sought after electronic devices of the new millennium. Hence in today`s world having a notebook has become a necessity, no one can stay without one. After all who can deny the luxury/necessity of owing a notebook in today`s world?!

This article can be accessed in portuguese from the Article section of page http://www.polomercantil.com.br/notebook.php

Roberto Sedycias works for http://www.polomercantil.com.br

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

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.

Performance is another issue. RAM is shared between program memory and graphic adapters in laptops. Because of which performance of the laptop is affected. The major concern of the designer is compactness and energy efficiency against high performance. Generally, for the home requirement, laptops prove out to be good options for fast achievement of required performance. With new technology like dual core processors and perpendicular recording, laptops` performance is already showing a progressive graph when compared to the desktops.

Laptops can also pose health hazards. Temperature generated by laptop can affect sterility in men. Also, laptop keyboard can lead to RSI (Repetitive Strain Injury). Thus it is advised to place the laptop on a table or desk when working.

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