Showing posts with label power. Show all posts
Showing posts with label power. Show all posts

8.11.12

Leave Your PC Power On or Turn It Off - The Answer May Surprise You

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I'm sure many of you have asked yourself that question about your PC from time to time; should I leave it running or turn it off. To give you enough information to make the right choice, some points need to be made.

First, understand that turning your PC system on and off regularly does cause damage to the electronic components through expansion and contraction. When you turn on your system, the electronic components that make up your system, transition from room temperature to 185 degrees Fahrenheit (expansion) within a half an hour. After the system has been running and you power it down, the reverse process happens, cooling (contraction) the components back to room temperature. Since each electronic component has a different thermal expansion coefficient, each expands and contracts in a unique amount of time.

Long-term, this regular expansion/contraction causes damage to the components, and is the most popular cause of component failure in a PC system. Chips split, wiring and contacts break, and the motherboard and expansion cards can develop cracks. There are a number of other things that occur as well, none of which are positive. I'm not suggesting that you leave your PC on continually, but using your PC's power options effectively is the key to combating the expansion and contraction problem, as well as reducing your power bill significantly.

Electricity rates for each kilowatt-hour are on average at about 10 cents in the U.S. Your average PC system costs over $200/month if it's never powered off. The interesting thing is you can reduce that amount down to just over $50/month if you use ACPI S3 or even better with the ACPI S4 Power Option. You not only enjoy saving $150/month, you run a far less chance of your system causing a fire, while left unattended.

To configure your power mode properly, you must first go into your BIOS setup. The setting is usually called the ACPI suspend mode; enable it for the S3 state. By setting up your PC for this power mode, each time the PC goes into the S3 state, the system information is stored in RAM, and all hardware in your PC system is turned off, except for the RAM. To go back into the regular full power mode, you simply depress the Power On button. However, your system will not do a normal boot, it will load much more quickly, with all prior system information and files reopened.

As I mentioned earlier, you must go into the BIOS to enable S3. To further fine tune things, go into the Power Option Control Panel, select the Advanced tab, select Stand By as the choice for the question, "When I press the power button on my computer." Select the hibernate tab and enable hibernation if you want to go into the S4 ACPI mode, which saves the system information to the hard drive, and the entire system is powered off. When you press the Power On button, it will not perform a cold boot, it will be fairly quick to recover all system information and reopen files, but not as quickly as S3. Go to the Power Schemes tab and select the amount of time you want to elapse before the system goes into "System Standby" (S3) and System Hibernates (S4).

As you can see, it's not difficult to enable the S3 and S4 power modes, and by doing so, you will be saving money each month with a lower power bill, as well as prolonging the life of your PC. The cool thing about this is you have total control over your power consumption. In this case, you have the power!

I write a blog about PC issues, including troubleshooting, and how to best use Windows utilities. You can find it at: http://pcjournal.typepad.com/blog


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Lenovo G480 Overview - A Notebook With Power Management Technology, OneKey Rescue, and More

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The Lenovo G480 is the most affordable laptop in the G-Series. It's available in blue-red, or dark brown. You can expect a lot of productivity out of it thanks to its 2nd generation Intel Core i3 or i5 processor. The great thing about Lenovo laptops is that they can be tailored to your needs.

The 14 inch display is made with anti-glare technology so that you can view it in any lighting condition. Also included is an integrated webcam. The resolution is 1366x768. Colors, lines, details are delivered beautifully. Its overall design is simple, yet attractive. Since it weighs less than 5 pounds, it's easy to carry around.

The keyboard has a nice design, with its rounded keys. Typing on this laptop is easy and comfortable. There are also hotkeys, including the OneKey Rescue. It's recommended that you back up your files on a regular basis just in case you need to do a system restore. The OneKey Rescue makes backup and restoration easy.

The G480 also comes with Lenovo Energy Management software, which manages the power for the notebook. You will have the controls you need to fine-tune power consumption, thus extending the system's life and enhancing is performance and endurance.

There are a few different graphics options from which you can choose if you want to use the notebook for multimedia purposes. The Lenovo G480 comes with standard Intel HD graphics (4000). If that isn't enough you can choose from 3 NVIDIA GeForce cards: GT630 M 1 GB, 2 GB, and GT610 M 1 GB.

Stay connected to the internet and other devices with the 802.11n Wi-Fi LAN (10/100M) and optional Bluetooth. The wireless technology allows you to connect to the internet at just about any wi-fi hotspot.

The notebook can also be used for syncing files, documents, music, and more, thanks to the 2 UB 3.0 port and 1 USB 2.0 port. You can hook any USB-enabled device, such as a digital camera and multimedia player, to your notebook. The HDMI port allows you to connect the G480 to an external monitor or HDTV.

Another great thing about this notebook PC is that it comes with security features such as VeriFace Face Recognition. This is a fun way to login to the computer. You can set it so that it only recognizes your face. That way, if it's ever stolen, nobody will be able to access your data and personal information.

Overall, this is a great notebook that's well worth its price. Lenovo G480 discounts are sometimes available online to help consumers save. If you're looking for an affordable laptop that offers security features, power management, and flexibility, this is an excellent choice.

Before you place your order, check out some Lenovo G480 promo codes. You may be able to get this affordable laptop for even less. The money you save with the use of Lenovo coupons can be spent on accessories and software.

To find out more about this computer along with coupons and discounts to make your purchase less heavy on the wallet, visit George's website - http://www.gripbuy.com/Electronics/lenovo.html


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12.6.12

Today's Youth Can Unleash The Power of Their Imagination With Lego Mindstorms NXT Robots

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Lego has been an important part of children's lives from all over the world really since about 1949 when the toys were changed from wood to plastic. "Automatic binding bricks", as they are since referred to, have predominantly been the most popular building toys for children (amongst a few others). They provide great fun to our children, but more importantly, it is a fact that many experts agree they help children's intellectual development extensively. Critical thinking and problem solving skills are utilized to generate an end-result existing only in the child's own imagination.

Many experts say playing with Lego can actually make your child more intelligent, and sure it doesn't seem so surprising. However, many children of today's generations are spoiled by the relatively new digital era. These technology-wielding kids are hypnotized by video games, computer games, and of course the television. The other (inanimate) toys have been packed up for storage or are sold on the internet.

Video game fanatics can also argue the advantages of computerized games for a child's mental aptitude, yet the creative problem solving skills involved in playing with Lego is exponentially more stimulating as far as a recent comparison. What about if the two (computer games and Lego) were combined into one astoundingly powerful super toy?

The strategy involved producing a product that allowed children to build whatever their imagination had in stock for them and program these creations to be fully autonomous. The autonomy of these self-built projects is what attracted so many young techies because really the sky was the limit as far as what figments of dreams could be achieved. It continues to amaze and mystify children, and even adults, that it is actually possible to make something at home that they can program to do whatever their heart desires. With this type of technology/entertainment in the hands of our children and students, the world should see an explosion of creativity and innovation from our competent and eager youth.

Rather than constructing inanimate objects, Lego has now made available not only to kids, but also to adults, the tools and development kits to build moving and fully autonomous robots. With the limitless idea of combining computer technology, electric motors and sensors, and the classic building block toys into one unique new... toy... Lego has laid out the foundation for a multitude of young engineers to explore the generally esoteric field of robotics design and engineering. One couldn't help but ponder, "What's next?"

Want to find out more about Lego NXT Robots? Visit the recommended resource on Lego Mindstorms NXT Robotics.


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25.4.12

How Small Can Modern Power Amplifiers Become?

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Newest models of super mini audio amplifiers underline the ongoing trend of miniaturization of consumer devices such as cell phones or computers. While the features are growing, the size of today's consumer products is getting smaller and smaller. The majority of audio amplifiers would be tube amps in the past. Even though large number of fanatics still is fond of tube amplifiers, they have been replace by solid state amps for the most part.

While traditionally there would be separate pre amp and power amp stages, today's solid-state amp combine everything into a neat box no larger than the size of a VCR. Thanks to latest developments in audio technology in regard to amplifier power efficiency, a new generation of super-miniature audio amplifiers has become possible. Even though these amps are as small as a deck of cards, they are able to deliver up to 50 Watts power and easily drive a speaker to full volume.

Past audio amplifiers with "Class-A" and "Class-AB" architectures have fairly low power efficiency. Analog audio amplifiers will only convert between 20% to 30% of the consumed power into audio while the remaining portion is dissipated as heat. Analog amplifiers therefore require significant cooling which is done by heat sinks that are often bulky and prevent the amplifier from being made very small.

The "Class-D" topology of digital amplifiers offers higher efficiency than analog amps. The efficiency typically ranges between 80% and 95%. This allows digital amps to be minaturized. "Class-D" amplifiers employ a switching output stage. This stage introduces nonlinearities which causes audio distortion. This problem has had an impact on the success of digital amplifiers.

Newer amplifier technologies have emerged such as "Class-T" and newer "Class-D" architectures. These technologies provide for a feedback of the output signal to the amplifier input. By using this feedback, the amplifier can compensate for nonlinearities of the output stage. This allows the distortion to be reduced to levels similar to analog audio amplifiers. At the same time the amplifier offers the high power efficiency of digital amplifiers.

These new generation miniature audio amplifiers are suited for a range of new applications where previous audio amplifiers have failed. These applications include installations, such as in-ceiling installations, with minimum space or connecting speakers to a cable box or DVD/MP3 player where minimum space is key.

Therefore the high efficiency of modern power amps is key to obtaining the small form factor but at the same time sufficiently high audio power.

You can find additional information regarding small power amplifier products from Amphony's website.


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2.2.12

Harness the power of the Internet with PPC and Online Marketing Expertise

Pay Per Click (PPC) is a technique employed by internet professionals to promote businesses, and LogicServe Digital is extremely adept in it.

Pay Per Click is an internet advertising model which is used to direct online traffic to websites. Businesses pay very small amounts of money for keywords which might be typed into search engines by members of their target market. If a visitor clicks on the link for your website having typed in one of your keywords or phrases, you will be charged however much the keyword cost.

Because PPC requires technical expertise as well as continuous monitoring and optimisation, it is advisable to employ an SEO and PPC company to operate a PPC campaign on your behalf. They will advertise across platforms such as Google Adwords, MSN adCenter and Yahoo! Search Marketing in order to save you time and money. You concentrate on running the business in the same way you always have, and they will optimise your online advertising so it delivers the right amount of sales enquiries to help develop your business. LogicServe will make sure that you will be made visible to all users who are searching for products or services that are the same or similar to the ones offered by you.

The services the company offers include the setting-up of PPC campaigns, advice on budgets, research and review of keywords, bid management, management of PPC ad groups and copywriting. They track the campaign and constantly monitor it to be sure of its performance and how it can be improved.

In addition, there are a number of services available for clients who are entirely new to the concept of Pay Per Click. A company like this will guide you through a campaign's life cycle; tailor it to meet your needs and goals; focus on long-term gains rather than gains in the short-term and provide an easy-to-follow guide to what they are doing at all times, with the answers to any questions you might have easily available through contacting them.

If you're already an experienced advertiser, the PPC Company has specialised services to offer you as well. They can show you where you might be going wrong with your existing campaigns; help you set up the conversion tracking tools to help analyse the data you receive; help you manage long tail keyword strategies and keep you up to date with any changes search engines implement in their systems so you can react accordingly.

The benefits of the implementation of a well-run and conducted PPC campaign for your business are clear to see - speaking to a company in this field can help you harness the power of the internet and get much more out of your business.

For more inforemation visit http://www.logicservedigital.com/

Bring up your website on search engines with the help of a social media marketing company that also provides seo packages India at cheap rates.


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