Lenovo Thinkpad L510 Battery | http://www.labatterie.fr

To use it, you simply tilt the mouse to the side and then swipe up and down to scroll, or flick left and right to pan. Essentially, it replicates the two-fingered swipe gestures that most modern touchpads support, and means you don’t have to go looking for a scroll bar when you’re using the mouse, or move your hands away from the mouse to swipe a touchscreen.The Swiftpoint GT is a clever little box of tricks, and it works brilliantly well. While the design looks outlandish, it’s superbly comfortable – whether you’re using it on a desk or your laptop’s wristrest – and it delivers full-sized mouse accuracy and productivity while you’re out on the road. It works better than any flat-bodied travel mouse we’ve used, and the gesture-based scrolling and panning is surprisingly effective. There are a couple of catches, however. First, it’s only available as a right-handed rodent, although Swiftpoint says that it will consider developing a left-handed version if demand is high enough. Second, the price: £107 is a huge amount of money to spend on a mouse, let alone one that weighs a mere 24g, even if it does come with a luxurious, soft case with some well-thought-out accessories (the aforementioned mouse pad, plus a magnetic mounting plate that you can stick to the lid of your laptop and attach the mouse to when it isn’t in use).

Almost all 802.11 wireless routers use the 2.4Ghz or the 5Ghz frequency bands – or a combination of both. In the UK, the 2.4Ghz band is subdivided into 13 channels. Each of these channels is 20MHz wide but only 5Mhz apart so there is significant overlap between them. Wireless is an inherently anti-social technology and so overlapping means interference from devices occupying the other channels.The only channels that don’t overlap are 1, 6 and 11; so to get the cleanest signal possible, you ideally want to be on any one of these three magic channels. The problem arises when your neighbours are also residing on one of the three channels. If that’s the case, the simple rule is that you want to get your traffic as far away as possible from all the other competing devices in the vicinity. One of the simplest tools for Wi-Fi analysis is inSSIDer, available to download from MetaGeek for both Windows and OS X. This easy to use application analyses all the wireless networks in your area and presents all the information in a straightforward graph. It even makes channel recommendations based on competing networks.

Once you’ve figured out which channel you should be on, changing it is a straightforward operation on most routers. Look under wireless settings in the admin panel. This article assumes that you know how to access your router’s admin panel, but if you don’t, it’s as easy as punching a number into your web browser; just check the user manual.These days, many routers have smart functionality built in, which attempts to choose the best channel for you. In practice, these routers often make poor decisions and so it’s worth doing your own network analysis.Once you’ve selected your new channel, retest using LAN Speed Test and check your streaming performance.If you think you have wireless dead spots in your house, it may be worth conducting your own wireless site survey. NetSpot for Mac and Heatmapper for Windows are free tools that allow you map the wireless signal throughout your home.

And that’s the big sticking point for us. We love the Swiftpoint GT: it’s a superb product, and anyone who does a lot of mousework on a laptop, or who’s at the end of their tether with an unresponsive, broken or plain irritating touchpad, should take a very close look. However, at the current price it’s far too expensive.If one of your company’s employees was using a Lenovo consumer laptop to access your cloud-based data, there’s a distinct chance that data was effectively compromised by man-in-the-middle malware which Lenovo itself installed.I’m not sure, however, that we should really be surprised Lenovo has been caught by its own users installing some pretty odious malware on to its consumer laptops. I think it’s an inevitable consequence of a sickness at the heart of PC manufacturing.

We’ve all grown accustomed to PCs full of crap, uninstallable software added as an “extra value” by manufacturers. Of course, the “extra value” is actually to the manufacturer, not to the consumer. PC makers are paid by software companies to preinstall software, in the hope that in the long term users will get used to using their wares and pay for upgrades. This business is more than just a little extra cash for vendors: in a market where margins are down in the low single digits, it’s often the difference between making a profit and a loss. That’s why when you buy a “business” machine, which lacks the pre-installed crap, you’ll end up paying more for essentially the same product. For those unfamiliar with the way it works, Charles Arthur wrote a great analysis of the economics of crapware last year.Only Apple, which has preserved solid margins in the 20%+ range, has consistently avoided the trap of low-margins and high-crapware. It’s perhaps no coincidence the company has managed to do this while also increasing its market share consistently.

When you’re earning so little from your supposed customers, you forget they are actually your customers at all — and that’s what happened here. Someone within Lenovo forgot they should be creating products which benefit the people who buy their products, not the people who pay them a few dollars per machine to install crapware. When manufacturers start treating their paying customers as a set of eyeballs to be bought and sold to the highest bidder, something has gone very wrong with the business model and the industry as a whole.In this modern world of streaming, the dreaded ‘buffering’ symbol is something we are all too familiar with. Even more frustrating than the buffering, is not knowing what’s causing it. You’ve invested in the kit and you pay your broadband provider a considerable chunk of your salary every month, so what gives? In this tutorial, we show you how to optimise your wireless network to stream HD video smoothly. See also: How to connect laptop to a TV.

Broadly speaking, there are two types of wireless streaming you’re likely to be undertaking. The first is from a cloud service such as Netflix or BBC iPlayer. The second is local streaming; for example, you might have all of your Blu-rays ripped to a computer and you are streaming them to your television via something like AirPlay or Plex. Take a look at our streaming comparison: Chromecast vs Roku Streaming Stick vs Amazon Fire TV Stick Both methods require a well-optimised network, but if you are streaming locally, you needn’t be too concerned about broadband speeds because you’re not connecting to the outside world. If you fall into this camp of streamers, jump straight on to the ‘Optimising your wireless network’ section of this guide.

Just because you are paying for high-speed internet, don’t automatically assume that this is what your ISP is providing you with. Before you worry about your internal network, make sure you have some hard data on your broadband speeds.Speedtest.net is one of the better-known speed checkers available but if you are after a more comprehensive test, you have a couple of options. Thinkbroadband uses six different HTTP streams, two more than Speedtest.net. The test checks to see if all six threads are working, and restarts if a thread fails.If you really want to get an accurate measure of your broadband performance, sign up to get a SamKnows Whitebox. This is the company behind Ofcom’s official speed results and by becoming a volunteer for the national survey, you get a nifty little device to monitor your connection over a prolonged period. Download, upload and ping stats are all available via a web-based dashboard.There is no hard and fast rule when it comes to recommended download speeds (check with your content provider) but as a guide, you are looking for a sustained 2-3Mbits/sec for SD streaming and 5-20Mbits/sec for HD and beyond.

Remember, this is purely an assessment of your broadband speeds, not your local network – so be sure to conduct tests using an Ethernet cable as opposed to Wi-Fi. If you are repeatedly getting lower speeds than the minimum guaranteed by your ISP, it is time to get on the phone to them.Wi-Fi is not as infallible as we’d like to believe. Assuming that your download speeds are adequate, your wireless network is likely to be the culprit.Before you get stuck into tweaking your settings, it’s a good idea to get some baseline data on how your wireless network is performing. LAN Speed Test (Lite) is a free tool, which allows you to measure transfer speeds (throughput) by chucking a file from one computer to another over the network. To use it, you will need two machines connected over Wi-Fi. Simply install the software on one machine, point to a folder on the other and click ‘Start Test’.http://www.dearbattery.co.uk

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