Extend laptop battery life

Ah, the laptop computer — the ultimate platform for digital enjoyment. Laptops enable you to connect, play and work wherever and whenever you want. But if you lose battery power and can’t plug in on the go, your laptop is no better than an oversized coaster.

Laptop technologies have really come a long way.

With advances in processor architecture and mobile-optimized technologies and software, you can experience a near-desktop experience for playing games, listening to and downloading music, and surfing the Internet — all without being leashed to the nearest outlet.

OK, you’ve come a long way. Now come just a little further.

But even with these built-in, mobile-optimized technologies, you may still have to plug in before you’re ready. To squeeze every last drop of power out of your laptop battery, follow these tips and tricks and you’ll stay mobile longer:

  1. Charge the battery! Consider keeping it plugged in for 12 hours before you unplug.

Tip! Over time, you may find that you have to recharge your battery more often to get the expected level of performance. If that’s the case, it’s time to replace your battery. Look for lithium ion (Li-Ion) replacement batteries for the greatest longevity.

  1. Switch on the optimized battery or power feature. You’ll find this option — sometimes referred to as max battery mode — in your laptop system’s built-in power management control panel. You can select the option to reduce the amount of time your inactive laptop stays on before powering itself down and going to sleep.

Tip! Turning off power-draining facilities like backlights can preserve quite a bit of battery life.

  1. Check to see if your laptop has the optimum amount of RAM. You can do this by right mouse clicking on My Computer. The amount of RAM you have will appear under your System Information. RAM enables your system to run program instructions using the computer’s memory instead of its hard disk drive (HDD), where it stores data. Refreshing the RAM requires less power than spinning the hard drive, so having the correct amount of RAM means less drain on your laptop battery.

Tip! Consider 2 GB or more RAM for the best performance!

  1. Remove the battery and clean the metal contacts. Wipe them with alcohol, ideally every two months, to ensure that the power transfer between the laptop and its battery is as efficient as possible. Allow the battery to dry thoroughly before replacing it!
  2. Unplug any laptop accessories you aren’t using. Even if they’re not in use, accessories drain power from the battery.

Tips!

  • Turn your wireless local area network (WLAN) switch off if you don’t need a wireless connection — a button or LED on your laptop usually lights up to indicate wireless activities.
  • Use your laptop in the best possible lighting conditions. In brighter conditions, you won’t need to set your laptop screen to maximize brightness so you can save additional battery life.
  1. Defragment the hard drive so your system operates as efficiently as possible. The built-in defragmenting utility included with Windows®*-based operating systems decreases the time your system must spend searching for files by rearranging file fragments, so they are closer together on the hard drive. Less time searching means less spinning for the hard drive and less use of battery power.

Tip! Defragment your hard drive at least every two months!

Follow these battery-saving tips and tricks and you’ll be well on your way to staying unleashed longer!

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Virtual machines: What they are and why you might want to use one

Heard the terms “virtualization” or “virtual machine” used in your school and office and wondered what they were talking about? In a world where collaborating and working remote have become commonplace, you’re going to hear these phrases more and more. They represent an important change in how people are using computers — but if you’ve been wondering what the big deal is with them, you’ve come to the right place.

Here’s what people are talking about when they mention a virtual machine, the benefits of this software, and how it’s being used.

What is a virtual machine?

At its heart, a virtual machine or VM is an app — typically called a hypervisor — that emulates an operating system. You launch the app, and it (generally speaking) opens a window that’s another operating system, which operates exactly like it’s own computer. Everything in the VM is self-contained, and it typically has all the capabilities of the operating system it is imitating.

Yes, that’s like using a “fake” computer within a computer! However, there are some important distinctions. A virtual machine is indeed entirely virtual – it doesn’t have any hardware of its own, except for the storage drives it comes from. Modern VMs are also frequently associated with servers and network connections, since more complex versions are typically supported by server setups.

Virtualization services are often provided by specific companies — currently providers like VMWare and VirtualBox box are at the top of the field, but there are a number of different creators, some focused on business and some focus more on individual apps.

Why use a virtual machine setup?

  • Flexible work: Today, a growing application of VMs helps companies arrange flexible and remote work environments. When the software itself is the workspace, then where the computer or device is physically located doesn’t matter nearly as much. This allows everyone to collaborate in similar spaces no matter where they are or what machine they are using — or to switch to a different mode without the need to change computers. Storage space also isn’t very important, because most of the VM activity is managed behind the scenes by central servers.
  • Security: Virtual machines are used in two interesting security tactics. First, they are used to study ransomware, viruses, and other types of nasty attacks in a relatively safe environment. In this case, the malware usually thinks that VM is a real computer and starts to attack it, while white hat security experts can study how it operates and find weaknesses without endangering their “real” computers. Second, organizations can use VMs to help protect from device-based attacks, such as attacks using a smartphone OS framework.
  • Experiments: One of the oldest uses of virtual machines is to test new apps or coding changes in a safe environment that won’t crash the computer if something goes wrong. This type of VM can be very simple and inexpensive — and is commonly used by developers to to test apps for different operating systems.
  • Data management: Virtualization allows organizations to centralize data, change how they use servers or how many servers they use, and refine their hardware purchase strategy.
  • Special cases: In some cases, a VM setup can allow people to run software that they would not otherwise be able to run. For example, maybe you want to run an app that only works on an older version of the OS you are using (say a Windows 8 app on Windows 10) — a VM can allow you to do that without removing all your updates. Or you can use a VM to run an entirely different OS as needed for specific apps. This may be particularly useful for students who don’t have the right OS for classwork software, or similar cases.

The downside to virtual machines

  • Complexity: Choosing, managing, and maintaining VMs can also be pretty complex. Employees or students who must use a VM may have a lot of new things to learn, which can make fast-paced adoption difficult. Additionally, VMs may take more technical expertise, including experience that current IT specialists may not have.
  • Limitations: Not all computers or operating systems can support virtual machines. This is especially true of older systems.

How can I try a virtual machine?

You can download a VM yourself by finding the right apps. Here are a few common options:

  • VirtualBox: VirtualBox allows you to open up a number “guest operating systems” to emulate older operating systems. It’s ideal for a first solo experimentation.
  • VMWare: VMWare is more business friendly than VirtualBox, but it’s also more difficult to learn. It favors server software and a variety of server setups for downloading more complex VMs.
  • Parallels 13: Parallels is an app designed for the specific purpose of running Windows 10 as a virtual machine within MacOS.
  • Microsoft: Microsoft provides fee 90-day VMs to emulate older versions of IE and more, which may help with experimenting or using older software.

Future of virtual machines

Expect to see a lot more VMs in the future as their use cases expand. The security qualities in particular may mean that VMs will be more common than not in the coming years.

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Finger Scanners: What They Are And Why They Are Gaining in Popularity

A fingerprint scanner is a type of electronic security system that uses fingerprints for biometric authentication to grant user access to information or to approve transactions.

It used to be that fingerprint scanners were mostly seen in movies and TV shows, or read about in science fiction novels. But such times of imagination surpassing human engineering ability has been long gone – fingerprint scanners have been in use for decades!

Not only are fingerprint scanners becoming more commonplace in the latest mobile devices, but they’re gradually making headway into everyday life. Here’s what you should know about fingerprint scanners and how they work.

What Are Fingerprint Scanners (a.k.a. Finger Scanners)?

Human fingerprints are practically unique, which is why they’re successful at identifying individuals. It’s not just law enforcement agencies that collect and maintain databases of fingerprints. Many types of occupations that require professional licensing or certification (e.g. financial advisors, stock brokers, real estate agents, teachers, doctors/nurses, security, contractors, etc.) mandate fingerprinting as a condition of employment. It’s also typical to provide fingerprints when having documents notarized.

Advancements in technology have been able to incorporate fingerprint scanners (can also be referred to as ‘readers’ or ‘sensors’) as another (optional) security feature for mobile devices.

Fingerprint scanners are one of the latest in an ever-growing list – pin codes, pattern codes, passwords, face recognition, location detection, iris scanning, voice recognition, trusted Bluetooth/NFC connection – of ways to lock and unlock smartphones. Why use a fingerprint scanner? Many enjoy it for the security, convenience, and futuristic feel.

Fingerprint scanners work by capturing the pattern of ridges and valleys on a finger. The information is then processed by the device’s pattern analysis/matching software, which compares it to the list of registered fingerprints on file. A successful match means that an identity has been verified, thereby granting access. The method of capturing fingerprint data depends on the type of scanner being used:

  • Optical Sensor: These types of scanners basically make a photocopy of the finger. Many illuminate the finger in order to deliver crisp contrast of lines as the light-sensitive scanner (usually an image sensor or light-sensitive microchip) records the information to produce a digital image. Many PC-connected fingerprint scanners use optical sensors.
  • Capacitive Sensor: Instead of light, capacitive scanners use electricity (think of the way touchscreens work) to determine fingerprint patterns. As a finger rests on the touch-capacitive surface, the device measures the charge; ridges exhibit a change in capacitance, while valleys produce practically no change at all. The sensor uses all this data to accurately map out prints. Most all smartphones with fingerprint scanners use capacitive sensors.
  • Ultrasonic Sensor: Similar to how bats and dolphins use echolocation to find and identify objects, ultrasonic scanners work via sound waves. The hardware is designed to send out ultrasonic pulses and measure how much bounces back. Ridges and valleys reflect sound differently, which is how ultrasonic scanners are able to create a detailed 3D map of fingerprint patterns. Ultrasonic sensors are currently being prototyped (e.g. by Qualcomm Technologies, Inc.) and tested for use in mobile devices

Fingerprint Analysis

You might be staring at your fingertips right now, wondering just how scanners can so quickly determine a match or not.

Decades of work have led to the classification of fingerprint minutiae – the elements that make our fingerprints unique. Although there are over a hundred different characteristics that come into play, fingerprint analysis basically boils down to plotting the points of where ridges end abruptly and fork into two branches (and the direction).

Combine that information with the orientation of general fingerprint patterns – arches, loops, and whorls – and you have a pretty reliable way of identifying individuals. Fingerprint scanners incorporate all of these data points into templates, which are used whenever biometric authentication is required. More data collected helps to ensure greater accuracy (and speed) when comparing different sets of prints.

Fingerprint Scanners in Everyday Life

The Motorola Atrix was the first smartphone to incorporate a fingerprint scanner, way back in 2011. Since then, many more smartphones have incorporated this technological feature. Examples include (but are not limited to) the: Apple iPhone 5S, Apple iPad models, Apple iPhone 7, Samsung Galaxy S5, Huawei Honor 6X, Huawei Honor 8 PRO, OnePlus 3T, OnePlus 5, and Google Pixel. It’s likely that more mobile devices will support fingerprint scanners as time goes on, especially since you can already find fingerprint scanners in many everyday objects.

When it comes to PC security, there are plenty of fingerprint-scanning options, some of which can be found already integrated into certain laptop models. Most of the readers you can purchase separately connect with a USB cable and are compatible with both desktop and laptop system (typically Windows OS, but also macOS).

Some readers are closer in shape and size to that of USB flash drives – in fact, some USB flash drives have a built-in fingerprint scanner to grant access to the data stored inside!

You can find biometric door locks that use fingerprint scanners in addition to touchscreen/keypads for manual entry. Biometric car starter kits, installed in vehicles as an aftermarket accessory, use fingerprint scanners to add another layer of security. There’s fingerprint-scanning padlocks and safes, too. And if you ever plan a trip to Universal Studios, you can rent a free storage locker that uses fingerprints instead of physical keys or cards. Other theme parks, such as Walt Disney World, scan fingerprints upon entry in order to combat ticket fraud.

More Popular Than Ever (Despite Concerns)

The application of biometrics in everyday life is expected to grow as manufacturers devise new (and more affordable) ways to incorporate the technology. If you own an iPhone or iPad, you may have already been having helpful conversations with Siri. The Amazon Echo speaker also employs voice recognition software, offering a host of useful skills through Alexa. Other speakers, such as the Ultimate Ears Boom 2 and Megaboom, have integrated Alexa voice recognition through firmware updates. All of these examples use biometrics in the form of voice recognition.

It should come as little surprise to find more products designed to interact with our prints, voices, eyes, faces, and body with each passing year. Modern fitness trackers can already monitor heartbeat, blood pressure, sleep patterns, and movement in general.

It will only be a matter of time until fitness tracker hardware is precise enough to identify individuals through biometrics.

The subject of using fingerprints for biometric authentication is hotly debated, with people arguing the dire risks and significant benefits in equal measure. So before you start using the latest smartphone with a fingerprint scanner, you might want to weigh some options.

Pros of Using Fingerprint Scanners:

  • Allows fast and easy one-finger access to unlock devices
  • Excellent way to identify unique individuals
  • Extremely difficult to fake/duplicate (versus identification/access cards, etc.)
  • Practically impossible to guess/hack (versus pin codes, passwords, etc.)
  • You can’t forget your fingerprint (as you might with passwords, codes, patterns, access cards, etc.)

Cons of Using Fingerprint Scanners:

  • Not completely foolproof (individuals with the right resources, time, and dedication can trick scanners with forgeries and/or master prints)
  • Can’t get new prints (you can change/replace cards, codes, and passwords, but there’s not much you can do if someone steals your fingerprint data)
  • Encryption is still questionable (the safety of your fingerprint data hinges on the software/hardware manufacturer)
  • Finger injuries can impede successful scanning and deny access to authorized users (even slight imperfections can create difficulties)
  • Germs (know how many people touched that public scanner before you did? Better sanitize it first)

The utilization of fingerprint scanners in consumer-level electronics is still quite new, so we can expect standards and protocols to be established over time. As the technology matures, manufacturers will be able to fine-tune and improve the quality of encryption and data security in order to prevent possible identity theft or misuse with stolen fingerprints.

Despite the concerns associated with fingerprints scanners, many find it preferable to entering in codes or patterns. The ease of use actually results in making more mobile devices secure overall, since people would rather swipe a finger to unlock a smartphone than remember and tap out a code. As for the fear of criminals cutting off fingers of everyday individuals in order to gain access, it’s more Hollywood and (irrational) media hype than reality. Greater worries tend to revolve around being accidentally locked out of your own device.

Locked Out Using a Fingerprint Scanner

Even though fingerprint scanners tend to be quite accurate, there can be a number of reasons why one won’t authorize your print. You’ve likely tried to get back into your phone while doing dishes and found that wet fingers typically can’t be read by the sensors. Sometimes it’s a weird glitch. Most manufacturers have anticipated this happening from time to time, which is why devices can still be unlocked by passwords, pin codes, or pattern codes. These are typically established when a device is first being set up. So if a finger won’t scan, simply use one of the other unlocking methods.

If you happen to forget a device code in a fit of anxiety, you can remotely reset (Android) lock screen passwords and pins. As long as you have access to your main account (e.g. Google for Android devices, Microsoft for desktop/PC systems, Apple ID for iOS devices), there is a way to log in and reset the password and/or fingerprint scanner. Having multiple means of access as well as two-factor authentication can improve your personal security as well as save you in such forgetful situations.

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Clean laptop Screen

Laptops are expensive and easy to break due to this it is important to know how to clean your laptop properly. The main parts of a laptop that need regular maintenance and cleaning is the screen. So below are the processes to cleaning all of those important components in a laptop. Obviously, the screen on a laptop is the most delicate component in result it takes extra care and gentleness.

First, try to find a 100% cotton cloth this could be a t-shirt or maybe an old rag that you have. Also when cleaning a laptop screen never use a paper towel which is a common mistake for many. Second, find isopropyl alcohol which is the best and cheapest liquid to clean a laptop screen. Third, take the isopropyl alcohol and pour it on the cloth. Then genteelly wipe the laptop screen off removing any smudges or dust.

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How to care for your laptop’s battery

Who doesn’t have a love/hate relationship with their laptop battery? It lets us be mobile, but it also chains us to that little battery life gauge and the dreaded decay of performance as time goes on. But by following certain best practices, you can move the relationship more firmly toward the “love” side. Here’s how.

Save cycles, save your battery

All laptop batteries are built to handle a certain number of charge cycles, usually somewhere around 500 full cycles and sometimes more. Essentially, a charge cycle equals one full discharge down to zero percent and then a recharge back up to 100 percent. A discharge down to 50 percent and then back to 100 percent would equal half a cycle. Over time, each charge cycle decreases a battery’s capacity from its design specifications, meaning that the fewer times you drain it, the longer the battery last — all other things being equal.

And so, where do you start? You can begin by visiting the power settings corner of your laptop. Many computers offer the ability to switch to an “eco mode” that automatically adjusts the way power is used (such as automatically dimming your screen brightness) to conserve battery energy. You can also manually reduce the amount of power you’re using by shutting off Wi-Fi and Bluetooth when you’re not using them, turning off optional features such as keyboard backlighting, and generally reducing the number of components burning power.

Also, pay attention to hibernation modes. Ideally, you want your laptop to enter into hibernation before the battery is totally drained – as well as during downtime when you won’t be using the laptop for a while. Hibernation is typically a power state where everything in working memory has been written to the hard drive or SSD and then the laptop is turned completely off. Hibernation uses no power, as opposed to various sleep states available with modern laptops that use at least some power over time.

To save even more power, take a tour of your apps and quit any that are running in the background and steadily eating into your battery life. In Windows computers, you can look at your System Tray, your Task Manager, and your Processes tab to see which of those little icons really aren’t necessary. In macOS, you can see what apps are using the most power by clicking on the battery icon in the taskbar to the upper right and by opening the Activity Monitor and selecting the Energy section. Cloud storage services or video players that you aren’t using can be safely shut down. Both Microsoft and Apple have guides explaining the process further.

And, of course, there’s the best solution of all — don’t use your laptop on battery power, if you don’t have to. In today’s era of long battery life, it’s easy to forget to plug in when you come back to your desk. But that will, eventually, shorten your battery’s lifespan.

Keeping your battery in zone

In ancient, less enlightened times, there was a problem called “battery memory” that caused nickel-metal hydride (NiMH) batteries to “forget” their full charge capacity and start charging at lower and lower levels. This problem doesn’t exist any longer thanks to modern lithium-ion batteries, but it has led to a lot of poor advice and arguments about battery care based on outdated information. It’s time to clear the air.

Contrary to some recommendations, you don’t need to completely discharge a lithium-ion battery and then recharge it to somehow reboot or calibrate it – this is a destructive practice that’s very hard on your battery. Whether or not it’s a smart idea to perform a complete discharge a couple of times a year remains an unanswered question. Generally, the consensus seems to be that letting your battery discharge (without bottoming it out — aim for around 20 percent) and then charge it when possible is the best practice.

Next, there was a time when users were advised to refrain from keeping their devices plugged in, based on the idea that letting a battery charge to 100 percent could wear the battery out more quickly. Today, however, modern devices are designed to stop charging at 100 percent and thus keeping them plugged in doesn’t impact the battery’s lifespan, according to Battery University.

As with many battery-related questions, the issue of keeping your laptop plugged in when it’s reached full capacity is hotly debated, and so there’s nothing wrong with turning your machine off and unplugging it. If you’re going to store your laptop for an extended time without using it, then discharge or charge it to 50 percent before putting it away.

Generally speaking, the best thing you can do for your lithium-ion battery is to avoid letting it discharge below 20 percent. Plug it in and charge it when you can, and then rinse and repeat. The good news is that with modern batteries and systems there’s really not much else you need to do — except perhaps reasonably expect that your battery will eventually start losing its overall capacity.

It’s getting hot in here, so hide your batteries

Todays lithium-ion batteries are durable, but they can only take so much heat. High temperatures can damage your laptop battery permanently, or reduce its useful lifespan.

This leads to some common sense suggestions. For example, if you are charging your battery and it starts to get overly warm, perhaps because the CPU or graphics processor is working hard or the environment is overly hot, then shut the device down and pop the battery out if possible. Give it a break so that it can cool down or you can move to someplace with a lower temperature. Of course, many modern laptops have sealed batteries, in which case shutting the machine down and letting it cool is highly recommended if maximizing the battery’s lifespan is your concern.

Likewise, keep the laptop off of your lap. If testicular damage and discomfort weren’t good enough reasons, then with many machines you’re also making the problem worse by blocking vents. You’ll want to make sure that both vents that pull in cool air and those that expel hot air are able to do their jobs.

Finally, and perhaps most importantly, you should avoid placing your laptop anywhere it might become hot. That includes your car on a hot summer day, beneath a window that gets direct sunlight, or near a space heater. Unusual conditions such as these can do a lot of damage to a battery in a short period of time, though you may not realize it immediately.

Cold temperatures usually aren’t a problem down to a certain point, and storing a battery in a cool place is recommended, but don’t leave your laptop in freezing temperatures. Too much cold can also kill the battery permanently or reduce its lifespan.

If you want to watch temperature even more closely (say, you live in a particularly hot climate), then there are a number of apps you can run that will monitor laptop heat. This includes CoreTemp and Real Temp for Windows, which you can download for free.

Giving your laptop some TLC

Most people just let their laptop battery sit, snug inside the laptop, doing its job. But it’s a good idea to take your battery out from time to time and show it a little love. Every few months, detach your battery and give it a careful wipe with a soft cloth – get rid of any dust, and make sure the contact points are especially clean.

Note that this only replies to models with removable batteries. As laptops have become thinner and lighter, removable batteries have become something of a luxury. If your laptop has a sealed battery, then there’s little for you to worry about.

Things to avoid

Want the best battery? Here’s a quick list of bad practices.

  • Full discharges: As mentioned, when a laptop battery discharges fully – forcing a shutdown – the battery uses up a full charge cycle. The more charge cycles consumed, the more quickly a battery will give up the ghost. Even when running a discharge cycle, don’t let the battery drop to zero percent. Instead, stop when your operating system warns you the battery is getting low.
  • Reliance on hibernation modes: This is a similar point to the first. If you are constantly forcing your laptop to hibernate in order to save the battery, then you aren’t keeping your battery at the ideal percentages. Rethink your laptop habits, or at least accept that your usage patterns will result in a battery that won’t last quite so long.
  • Long periods of inactivity: If you must leave your battery unused for long periods of time, then make sure it has around 50 percent charge remaining. A depleted battery can die forever if not recharged soon enough. Generally speaking, though, keep using and properly charging your battery as long as you have it.
  • Hot summer days: Obviously you can’t always avoid hot summers, but you know what this means: keep your laptop cool. Store it indoors, avoid direct sunlight, and keep it out of hot cars during the warmest days.

Software and your battery

Finally, a note about your software — keep it updated! Companies work hard to improve the way that programs use power via software updates. The same operating system on a later patch could use significantly less battery power, giving your battery a longer lifespan without changing anything else. And so, review your OS and keep your machine — and its battery — on a healthy diet of updates.

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Improve Battery Lifespan

The phone is undoubtedly an extremely powerful handset, but one of the main weaknesses of modern devices is the lack of battery life, and any phone is no exception.

First we should understand the scenarios in which you would need to extend your battery life. They would be:

  1. General day to day use.
  2. Your battery life is hovering around 30-40% and you aren’t sure if your phone is going to make it till the next charge.
  3. You’re in a situation where you absolutely must have your phone alive, but there is minimal battery power left, probably 1-20%.

As you can see, those are entirely different situations, so it only makes sense that you take different measures depending on the severity of the situation.

Turn off background app refresh

Turning it off will help preserve battery power, but you’ll go back to having to wait a few seconds for your app to refresh its content when you first open it.

Pay attention to location services

Location services enable apps to know where you are. Sometimes there are apps that track your location too often, draining your battery.

Turn off push notifications

Push notifications by itself seems pretty harmless, but it’s worth noting that every time that your phone receives a notification, the display will turn on. So turn off notifications for apps. Pay attention if your phone gets too warm. Heat is always an enemy to your battery life, so try to keep your phone out of the sun, which usually happens when left on the dashboard of your car.

Aside from that, heat can also be a good indicator that your phone is overworking itself. If your phone is just in your pocket and it starts to get warm, it’s best to check if there is a battery intensive app that is actively running and consuming battery power.

Turn off location services

Turn it off and don’t use your GPS services. You’re in a situation where you absolutely must have your phone alive, but there is minimal battery power left, probably 1-10%.

Hopefully this guide will help you enjoy your phone for longer periods of time.

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