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Notebooks have emerged as a bare essential for the business executives who carry their work along with themselves. Notebooks which are also known as laptops can facilitate the work process thereby saving substantial and valuable time. In short, it is used as tool of time management.

Owning a notebook is a dream of many, but since it is very expensive nobody buys it unless it is indispensable to them. However, some people having shoe-string budget look for a good notebook. They are the ones who need detailed and comprehensive information on notebooks and laptops before they settle for one.

Basically, buying a notebook or laptop largely depends upon the personal choice, specific requirement and social status of a person. Besides, different manufacturers are introducing notebooks of different look with a wide-range of features. However, some notebooks are launched in the market to cater to a particular segment of buyers keeping in mind of their specific needs. Accordingly, these laptops differ in flavor, class and quality.

Let`s take a look at the various types of notebooks that are available in the market today. Keeping various factors in consideration the notebooks can be broadly divided into four major categories, such as:

Budget laptops - Typically, these laptops cost around US$ 1000 to $ 1200.

Mid-range laptops - Notebooks of this category can be found with a price-tag of about US$1200 to $1600.

Ultra-portable laptops - These light-weight laptops ranges from US$1600 to $2200.

laptops for the people with a class apart. With all the standard and advanced features in these notebooks, they cost above US$2200.

Performance test of laptops:

Notebooks can be tested on the basis of certain benchmarks such as multimedia content creation 2003 and Business Winston 2002. These tests determine the performance ability of different notebooks with regard to regular productivity applications and multimedia content application.

Similarly, 3D Mark05 and 3D Mark06 are used as standards to measure the gaming and graphic potential of different notebooks.

Likewise, PC Mark05 is taken as a yardstick to test various components of notebooks such as hard-disk general usage, multithreading, web-page rendering, file decryption and 3D pixel shader.

Moreover, the battery back-up and wireless connectivity can be tested using Battery Mark02 and QCheck as the benchmark.

Finally, Vista compatibility Check can be undertaken to test if the notebooks have Vista-readiness. Under this test, the performance of the laptops is assessed on the basis of Vista drivers and Vista upgradeability.

Features:

When it comes to features, the list seems endless. Some expensive notebooks have the most advanced features such as built-in webcams, fingerprint readers, TPM and so on. So far as the features go, they can be divided into five different categories, such as:

Physical - Screen size and weight of the notebook

Connectivity - bluetooth version 1/2, infrared, MMC reader, S-Video, DVI port, FireWire. The number and type of usb ports and pcmcia slots.

Components - Type of optical drives, whether the notebook has a DVD combo, a CD-RW or a multi-recorder DVD-RW. The hard-drive capacity and any additional component such as wireless optical mouse or an MMC adapter.

Software - Software have always been an essential part of the package. These include recovery CDs, driver CDs, OSes, etc.

Protection - All types of protection available in a notebook, be it a finger-print reader, BIOS level HDD protection, touch-pad lock, TPM, or even rescue option available at the time of boot up.

Pricing and Warranty:

All notebooks ranging from $1200 to $4500 offer warranty of 1 year and some laptops have the option of additional extendable warranty.

So, the above discussed comprehensive analysis and performance tests will definitely help those who are planning to buy a laptop.

This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.

Roberto Sedycias works as IT consultant for PoloMercantil

# posted by 26146 : 5:19 PM  0 comments

The world is shrinking into a global village as the horizon of technology expand.It is a hybrid field of applied science and technology. Nanotechnology focuses on manipulating atoms individually and placing them in a pattern to produce a desired structure. It is diverse field that has various branches colloidal science, applied physics, material science, supramolecular chemistry, device physics and even electrical and mechanical engineering. Nanotechnology uses two main approaches, known as to-up and bottom-down approaches.

In the "top-down" approach, the nano-objects are assembled from larger molecular objects without atomic-level control. In the "bottom-up" approach, materials and devices are built from molecular components which constructs chemically by the principles of molecular recognition. Instances of nanotechnology in recent use are the production of polymers based on molecular structure, and the design of computer chip layouts based on surface science. When the nanotechnology is implemented in image analysis software, some computers are able to study a consumers body language and, with exact programming can precisely understand a person's position, impatience and diverse facial expressions like frowning, smiling or scowling.

Human skin has the ability of broadcasting the electric signals which can be used as a method of transmission, researchers have already been able to develop computers that are designed with nano sensors that have the strange ability to 'see' and 'hear' the people using them in reality. Nanotechnology would facilitate manufacturing of new generation of computer components with massive storage capacity. In the field of computer science, there is something called as Moore's Law which states that, in layman's terms, the processing abilities of the basic computer chip have been increasing exponentially to a greater heights every eighteen months since their inception.

The evolution of the computers clearly shows us that mechanical computing tradition was not completely abandoned. In 1990, University of Minnesota engineers fabricated an entire family of micromechanical digital logic devices, including electrostatically-actuated linear sliding micron mechanical logic elements limited to a one-dimensional track, suitable for low speed radiation-hard digital works in an environment hostile to the electronic devices to operate. Perhaps the best-characterized mechanical nanocomputer is Drexler's rod logic design which is though not yet built. In this model, one sliding rod with a knob interconnects at first a second knobbed sliding rod at right angles. Based upon the location of the first rod, the second may be able to move, or unable to move. This straightforward blocking contact serves as the basis for logical operations.

There has been a lot of research work going on this for the betterment of the mankind. In a press meet to Journal of Applied Sciences Hewlett-Packard said that their scientists have invented an alternative to eventually replace the transistors in computers. This was demonstrated by their Quantum Science research group. They have invented a "crossbar latch," which supplies the signal restoration and inversion necessary for general computing without the need for transistors.

Quantum physics has shown that immortality has now become a reality. Every one of us, need to take a come across this bigger picture and make a decision how we feel about it, and where we fit in.

Sharm Kan offers up-to-date information about nanotechnology. He has been working on nanotechnology science and nanotechnology material from past 3 years and act as SEO copy writer for http://www.nanowerk.com For further information please contact at - sharmkan@gmail.com

# posted by 26146 : 6:00 AM  0 comments