2014年9月25日星期四

Review of Lenovo's N20p Chromebook

The Lenovo N20p laptop is a consumer-friendly alternative, and Lenovo's first Chrome OS not aimed at either business or education buyers. It's a slim, lightweight ultraportable laptop that takes the central idea of a Chromebook -- a low-cost, simple clamshell for online use -- and adds better keyboard and touchpad than Chromebook users may be used to.

The system will be coming to the UK as well, and is listed on Lenovo's UK site, but without price or availability information, but converted pricing would be about £200. As for Australia, no price or release information was available, but converted pricing would be about AU$370.

Much like the Windows laptop line calls Lenovo IdeaPad, the hinge on the N20p folds back past 180 degrees. Unlike fold-back hybrids, it doesn't go all the way back a full 360 degrees, allowing you to use it as a tablet. Instead, like the Flex, it stops, somewhat abruptly, at 300 degrees. That allows you to fold the screen back for use in what we call a kiosk mode, with the screen facing out and the base, keyboard facing down, as a kind of kickstand. It's marginally useful, more so if you're playing videos or presenting PowerPoint presentations, but unlike the Yoga hinge, it's probably not a system-selling feature.

Despite the trick hinge that might not get much use, the N20p is one of the better Chromebooks we've tested. The body is well-made and slim, the keyboard and touchpad are excellent for a budget-priced ultraportable, and the touchscreen, while not as useful in Chrome OS as in Windows 8, is still an occasionally handy extra. Yes, you could pay less for a Chromebook, but you'll be getting less, too.

 

 

Design and features 

 

For a laptop intended to grab the eye of the consumer (compared to Lenovo's better-known conservative business systems), the N20p isn't exactly flashy. A matte black interior is connected via a chunky central hinge to a lid covered with dull grey and a small Google Chrome logo on one side, and edge-to-edge glass over an 11-inch display and wide bezel on the other.

Like many ultraportable laptops, the chassis tapers towards the front, helping it feel thinner than it actually is. The N20p is 0.7 inches (1.8cm) thick and weighs 2.8 pounds (1.3kg), versus 0.87 inches (2.2cm) thick and 3.1 pounds (1.4kg) for the Yoga 11e. That may not seem like much, but in the hand, there's a real difference between the two, and it's obvious which one would be a better daily travel companion in your shoulder bag (unless you're especially accident-prone, in which case consider the tank-like Yoga 11e).

 And Lenovo used that strategy to great effect, crafting one of the sharpest Chromebooks seen yet. However, talk about combining two of the most divisive technologies into a single machine, neither of which seem like much of a fit for Chrome OS. And to think that Lenovo brought even more primo hardware to Google's laptop spec.
 

2014年9月15日星期一

Review of MSI GT725 laptops


There are currently three editions of the 17-inch gaming device MSI GT725  laptops  in the German-speaking area. While the GT72-2PE16H11BW (SKU5) has a pretty conventional equipment, MSI really goes all in with the GT72-2PE16SR21B (SKU6) and our review configuration GT72-2PE16SR231BW (SKU7). The box not only contains a large (32 x 27 centimeters) mouse pad, but also a keyboard cover, two dog tags and a bulky backpack. The real highlight is the stylish SteelSeries periphery: Besides a headset (Siberia v2), MSI also equips the more expensive configurations with an optical mouse (Kinzu v2).

The new chassis leaves a much better impression than the GT70 in terms of design. Instead of a chaotic mix of materials and shapes, the customer now gets a pretty grown-up design, even though the 17-inch device still has some gaming elements. While the display cover is made of aluminum, the display frame, the keyboard and the bottom cover are made of plastic. The package is completed by a palm rest that appears to be rubberized.

Even though MSI decided to use a matte finish (only the surrounding of the display frame is glossy), the MSI GT725 attracts dirt quite easily at some spots. Both the metal surfaces as well as the palm rest are very sensitive to greasy fingers. Another point of criticism are the hinges, which sometimes create creaking sounds and cannot keep the display perfectly in position during vibrations. 

The GT725 is also competitive in terms of weight. 3.79 kilograms are on one level with the Clevo P170SM-A, whereas the Alienware 17 and the Asus G750JZ are 400-500 grams heavier. Still, we would classify the GT72 as a typical desktop replacement. Other gaming notebooks like MSI's own GS70 are much easier to carry around.


 The communications section reveals two highlights for gamers. Both the network card as well as the wireless adaptor are based on the Killer technology from Qualcomm Atheros (formerly Bigfoot Networking). Killer products benefit from a comprehensive software and are supposed to be optimized for gamers. Besides the transfer rates, the manufacturer claims to improve the latency as well.

2014年9月11日星期四

Review of Acer Chromebook 13 laptops

Advantages of Acer Chromebook 13 :

 

The Acer Chromebook has a slim design, a high-res 13-inch screen, and a fast Nvidia K1 processor for a graphics and battery boost over other Chromebooks.

One of the nicer-looking and better-performing Chrome OS systems, the 13-inch Acer Chromebook adds some zip by ditching Intel for an Nvidia processor.

Chromebooks are largely cut from the same cloth. Small, lower-resolution screens, minimal onboard storage, low-end Intel CPUs, and modest plastic bodies.
  

Disadvantages of  Acer Chromebook 13:

 

 Like other Acer Chromebooks, offline functionality is extremely limited. The large screen lacks touch input, and the ARM processor presents some compatibility issues, even with online Chrome apps.






The simply named Acer Chromebook 13 drops the common x86 CPU for the ARM-based K1, similar to what one might find in an Android device. The Chromebook 13 gets a few other upscale-feeling tweaks as well, including a decently slim, angular body, a 13.3-inch full-HD 1,920x1,080 display, and excellent battery life. I'd be concerned if these new features were an excuse to drive up prices, but this model, with a very Chromebook-like 2GB of RAM and a 16GB SSD, costs $300 (£220 in the UK, with no Australian availability announced yet) putting it firmly in the middle of the mainstream Chromebook market. 

Design and features of Acer Chromebook 13:

 

The Acer Chromebook 13 laptops  is a plastic laptop, to be sure, but it feels very solidly built, and its matte white design comes off as more minimalist and sophisticated than budget. You won't mistake this for a $1,000 laptop, but it won't get you laughed out of the coffee shop, either.

Google's online "app store" offers a wide variety of apps, such as Pixlr for editing photos, but they're generally web-based tools that simply take you to cloud-based services. For the most part this process works well, but we did run into a few compatibility issues with this Nvidia-powered Chromebook that we did not with Intel versions.

2014年9月2日星期二

About laptop batteries and laptop chargers

Did you know that one of the most important and complicated decisions you can make in http://www.laptop-battery.org.uk is choosing the correct battery charging system for your boat? Charging your laptop batteries is a simple process of driving electrical currents into your battery in the reverse direction as the discharge occurred. Although rechargable battery packs can be a simple process, many things do factor into your decision and play a roll in choosing the proper charger.
The goal of our experts is to help you make an informed decision when you replace or add an on-board charging system to your vessel. You are adding value to your boat by having an on-board battery charger. In addition, these chargers also offer you the convenience and the ability to charge multiple batteries at the same time. You no longer will need to drag out a portable battery charger every time your Lithium-ion battery need to be charging. Maintaining your MSI laptop battery will be as easy as plugging in your boat to any 110 volt outlet.

The first step in the process is to identify what type of batteries you have on board your watercraft. You will need to look for some specifics about the batteries you are wishing to incorporate into the charging system. You will need to determine the following:

- Voltage
- Battery type
- Amp-hour capacity

Typically, in the marine world, you will be dealing with 12-volt systems. The battery's capacity is usually listed on the battery as "ah" or amp hour. Marine batteries will be one of the following types:
- Flooded/wet cell lead acid
- Starved electrolyte AMG
- Maintenance free  



Picture explain: 1002091 battery (pic 1)
10.8V, 488mAh
1002524 battery (pic 4)
MSI gx720Laptop Battery
10.8V,7200mAh
MSI  laptop Chargers typically come in single, double, triple and quadruple bank systems and should have independent outputs to charge each battery separately. The battery industry recommends charging your battery at approximately 15-20 percent of its capacity. For example, a 100-amp hour battery would be best charged at 15-20 amps. For your safety, be sure the battery charger you buy is UL listed to Marine 1236 standards and FCC compliant. If you choose a charger that is too large or small for your batteries it could damage them and decrease the life by overheating, gassing and causing excessive water loss.
Depending on what type of boating you enjoy, you will need to make sure your on-board charger's waterproof housing is designed for fresh and/or salt water. It is also important that you make sure it is vibration resistant and incorporates built-in reverse polarity protection. To prevent boil over or your battery over-heating, be sure the charger you purchase has an automatic temperature compensation, this feature adjust output depending on the temperature to assure a fast full charge in any weather conditions. We suggest getting a charger that will charge in three stages typically these stages are:

- Bulk or quick charge mode - gets your batteries charged quickly
- Absorption stage - brings your batteries to a full charge
- Maintenance or trickle charge - keeps your batteries charged and protects batteries
 

Picture explain: 1061069 adapter (pic 1)
  • Input: AC 100~240V 50~60Hz
  • Output Voltage: 19 V
  • Output Current: DC 4.74 A
  • Power: 90 W
  • Connector: 5.5mm*2.5mm


1061074 adapter (pic 1)
MSI GX720 Laptop AC Adapter

  • Input: AC 100~240V 50~60Hz
  • Output Voltage: 19 V
  • Output Current: DC 3.42 A
  • Power: 65 W
  • Connector: 5.5mm*2.5mm