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2011年7月30日星期六

Should I buy a laptop or a tablet by bestlaptopbattery.co.uk

As the new school year approaches, the question I get asked most often is, "Should I buy a laptop or a tablet?" Apple's Steve Jobs has asserted that we are living in a "post-PC world." Is it really possible to replace a laptop with the smaller and, many would say, cooler iPad?
To test the theory, I traveled to Florida with my 2-year old, bearing my iPad 2 but no laptop. When an article needed editing, I realized that while it would be possible for the iPad to do everything I needed, it wasn't going to work for me straight out of the box. It needed modification.
If you are considering ditching your laptop, whether it's for a trip or for good, here's my guide to making it possible.
The touch screen is definitely my favorite feature of a tablet. After a few moments of navigating, I promise that you'll retire your mouse once and for all. But typing on glass takes some getting used to, and the first long email or document you try to create one pecking finger at a time will leave you yearning for your keyboard.
The Logitech Keyboard Case by bestlaptopbattery.co.uk  would have made my life a whole lot easier. This thin, lightweight case has an integrated Bluetooth keyboard that you can activate when you need it, but it won't weigh you down when you don't. The flat base lets you type on uneven surfaces, such as your lap, and function keys allow for easy music and volume control. The aluminum cover blends seamlessly with the iPad's unique look, letting you gain functionality without losing your cool.
With or without a keyboard, creating or editing a document or spreadsheet on your iPad isn't going to be easy unless you make an aftermarket modification. Microsoft Office isn't available on the iPad, but Apple's iWork suite will give you most of its functionality at a fraction of the cost. Pages, Numbers and Keynote handily replace Word, Excel and PowerPoint , and cost $5 each through the Apple app store. All the content you create in these programs is cross compatible, so if you edit a Word document on your iPad using Pages, you can open and edit it later in Word with no difficulty.
As much as we'd all love to be paper-free, there are inevitably times when you need to print something. You can search the iPad for a USB port, but to no avail. Printing something off your iPad will require accessing a printer wirelessly. To make the process as painless as possible, look for a printer that is compatible with Airplay, Apple's proprietary wireless application.
Finally, sometimes I need a particular program that isn't compatible with the iPad, or I need to transfer content to another device. The lack of a USB port or disk drive can make this challenging. But with Logmein Ignition ($30 in the app store), you can remotely access your home or office computer via the Internet. Install the companion app on your laptop or desktop and leave it running while you are away. Now you can access everything on your home or office system from your iPad, from World of Warcraft to your accounting software. A free option for remote computer access is TeamViewer, but it's for personal use only.

Tags: Tablet, replace, Laptop, smaller, battery wiki, dell laptop battery

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2011年5月17日星期二

Reduced to basics energy is a measure of the amount of electricity a battery

While lithium-ion battery packs are smaller and lighter than their lead-acid counterparts, both types of batteries are ridiculously heavy substitutes for a fuel tank. The sad part is that whispers from hippos have convinced dreamers of all ages that energy is more valuable than power and diverted attention from the harsh truth that no current battery technology is cheap enough or light enough to make electric drive competitive with internal combustion.
Reduced to basics energy is a measure of the amount of electricity a battery can store while power is a measure of how quickly the battery can deliver its stored electricity. While energy applications typically cycle a Dell inspiron 1720 Battery once or twice a day, power applications usually cycle a battery dozens of times a day. Once you accept the idea that each charge-discharge cycle has a determinable value, it's easy to see why the payback from power applications usually exceeds the payback from energy applications by a wide margin.
Hippos in pink tutus want us to believe a new age of electric drive is just around the corner. But at last December's United Nations Climate Change Conference in Cancun, Secretary of Energy Steven Chu offered an entirely different and uncharacteristically blunt assessment:
And what would it take to be competitive? It will take a battery, first that can last for 15 years of deep discharges. You need about five as a minimum, but really six- or seven-times higher storage capacity and you need to bring the price down by about a factor of three. And then all of a sudden you have a comparably performing car; let's say a mid-sized car which has a comparable acceleration and a comparable range.
In the simplest of terms, electric drive can't be competitive with internal combustion until somebody invents and commercializes an entirely new class of battery. In the meantime, the market will remain profoundly confused by snake oil suggestions that the cleantech revolution will mirror the progress that information and communications technology made over the last four decades. It's just not going to happen!
The miracle of the iPad isn't the result of better batteries(dell latitude d620 battery, Dell latitude e6400 battery). It's better electronics that do more work, but only use a small fraction of the energy the legacy technologies required. The eco-clerics and hopium pushers in our midst do not like these truths, but they're truths nonetheless.
In November of 2008 I created list of 13 pure play storage companies and promised to track their performance over time. Since then I've added five companies to the list (names in italics) and broken it down into peer groups to facilitate comparisons. My basic thesis was that investors who want market-beating performance should invest in companies that make objectively cheap energy storage products and avoid hippos in pink tutus. Since today is the 201st article in this series, it seems like a good time to take a look at how my thesis has held up over the last 2-1/2 years.
The price performance of the companies in my tracking list is summarized below. Prices have been adjusted for reverse splits where appropriate. The starting price for A123 Systems is its September 2009 IPO price. The starting price for New Energy Systems is the first reported closing price after its July 2009 reverse merger. Since trading in China Ritar Power is currently suspended, I've reported that stock as a total loss even though I believe such an outcome is unlikely.
Compaq nc6400 laptop battery
Overall my tracking categories have performed about the way I expected they would.
The Chinese companies have suffered immense damage from widely disseminated rumors of flakey accounting and reporting practices that are based on conjecture advanced by short-sellers. While I would like to believe the Chinese companies can't all be as bad as the innuendo suggests, I don't have the time or the inclination to do the kind of detailed on-the-ground investigations I'd need before jumping into the middle of a dogfight. Therefore I'll be watching that drama from the sidelines.
My only bad pick was C&D Technologies, which reported an unexpected intangible asset impairment dell inspiron 6400 battery mitac bp-8050 battery late last year and was forced into a restructuring that converted most of its debt to equity. Based on its recent earnings report it looks like C&D is well on the road to recovery and should outperform its peer group on a go-forward basis.
While Axion Power has been quite volatile and took a beating in 2010, I believe its poor performance was due primarily to supply and demand dynamics. In November 2008, Axion was an unknown company that traded by appointment. In late 2009 it closed on a huge private placement that more than doubled the number of outstanding shares. As the private placement purchasers sold their shares into the market, the price fell. For the twelve-month periods ended April 30, 2009, 2010 and 2011, the reported trading volumes were 3.5 million, 8.2 million and 50.3 million shares, respectively. In my experience, no public company can withstand that kind of selling pressure and volume ramp without at least a little suffering along the way.

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