Friday, 8 September 2017

LiFi vs WiFi What Is the Difference?

The world is very familiar with WiFi technology, but how acquainted are you with the term LiFi’. While WiFi is a technology which is local-area wireless network-based internet service, LiFi is fully-connected as well as a bidirectional wireless communication technology that is very similar to WiFi in functionality and in many other ways.

What is LiFi?

Li-Fi is a wireless-optical networking technology that makes use of light emitting diodes (LEDs) to transmit data. Li-Fi is built to use LEDs bulbs that are similar to those presently being used by many energy-conscious offices and offices. However, Li-Fi bulbs are fitted with chips that imperceptibly modulate the light for optical transmission of data. Just like you can flash a torch Morse code to send a message, LiFi sends binary flashes of light to transmit data. To the naked eye it looks just like a regular bulb, but in reality it is flashing thousands of times per second.

The early developmental models of Li-Fi were capable of 150-megabits per second (Mbps). Today, some commercial kits that still enable that speed are already available in the market. With different technology and stronger LEDs in the lab, researchers have enabled 10-gigabits per second (Gbps) that is quicker than 801.11ad. Imagine just turning on your lights and downloading a movie in a second.

Why is LiFi faster than WiFi?

Based on the pure frequency of the transmission, light waves are 10,000 times more denser than WiFi signals so the potential to pack more in the same space is huge.

Some of the best Li-Fi benefits include:

  • l Higher speeds than WiFi
  • l 10000-times the frequency radio spectrum
  • l More secure as data can’t be altered or accessed without a vivid and clear sight line
  • l Prevents piggy-backing
  • l Eliminates neighboring network interference
  • l Unimpeded by radio interference.
  • l Doesn’t create any interference in very sensitive electronics, thus making it ideal for use in environments such as aircraft and hospitals.

Some of the disadvantages of LiFi

  • l You need to keep the lights on, alright for the office but not so practical or eco friendly for home use.
  • l You need a receiver box or device with LiFi already installed.

Remind me, what is Wi-Fi?

WiFi works without any physical wired connection between the receiver and sender by making use of radio frequency technology – a frequency associated with radio-wave propagation and within the electromagnetic spectrum. When a radio frequency current is supplied to antennas, electromagnetic fields are created thus being able to spread through space.

The keystone of any wireless networks is an access point. The main job of access points is to propagate wireless signals that computers can sense and tune’ into. In order to connect with access points and join wireless networks, devices and computers must be outfitted with a wireless network adapter.

Some major benefits of WiFi technology are:

  • l Currently More Cost Effective.
  • l Already supported by devices.
  • l Well known and understood by the public.
  • l Eliminates wiring and cabling for PC's.

Why make the change?

When we begin considering smart home and the internet of things LiFi has a huge advantage that there will be no interference from other neighbors or nearby devices. Currently the drawback is lack of exposure and supported hardware as it seems a step back to have to connect your computer back to a LiFi receiver. For most of us regular WiFi is not the bottleneck the actual internet speed is, so a faster connection internally will have little effect of the actual speed.
at No comments:
Labels:

How Qi Wireless Charging Works

Qi – the Chinese term for ‘energy flow’, pronounced as ‘chee’ in ‘cheese’ is the widespread standard for wireless charging of the battery operated gadgets such as mobile phones, iPods, Mp3’s and cameras. With this particular technology the electromagnetic coils that send out and receive the charge are specifically safeguarded to lessen electromagnetic rays.

Electromagnetic Induction – Basic Principle of Qi Wireless Charging

The wireless power transfer happens via electromagnetic induction. With the inductive charging the necessary power gets to the device not through the conventional cable but instead wirelessly with the use of electromagnetic fields.

Wireless Charging is not a real brand-new technology. Electric tooth brushes have used the concepts of inductive charging for several years. Qi Wireless Charging runs on the resonant inductive combining between sender i.e., the charging station and the recipient i.e., the mobile device. A normal test “ping” signal is sent by the charger to check for devices and a ping is sent back, informing the Qi enabled charger platform that a Qi appropriate cell phone exists. The charger inspects the phone to see if it is compatible to the Qi standard. As soon as Qi compatibility and the power speed is determined, the induction charging starts. While charging the charger and phone stay in contact and will automatically go into standby mode as soon as the battery is completely charged.

Advantages of Qi Wireless Charging

The most significant benefit of Qi Wireless Charging technology is that cellular phones and battery chargers from various manufactures are suitable. The solely requirement is which both the parts – the sender and the receiver – complete the Qi requirements. Hence, each Qi enabled gadgets are suitable with every single Qi charging transmitter, irrespective of the producer or make of the device. The amount of enabled devices is continuously increasing as Qi wireless charging technologies are incorporated by an ever growing list of makers. This enables us to charge the numerous battery operated electronic digital devices with merely a single charging station.

Qi chargers are also energy efficient and only trigger and exchange energy when an enabled device requesting charging is positioned near the charger.

Is my phone compatible?

There is a growing number of phone available that support Qi, the latest Samsung and Xiaomi phones have this built in. There is an official list of Qi enabled phones.; if you do not have one of the phones listed you might be able to add the function, there are universal Qi charging modules that can be installed behind the battery, some Samsung phones have their own easy to install charger and iPhone 6 can enable the function with a charger case.

What charger can i use?

Any Qi labeled charger is compatible with all Qi devices so there is no hassle with compatibility. When it come so chargers there is an increasing number of styles.

Dedicated charger: A Qi charger pad or platform that you can place the phone on, there are many of these available and come in a wide variety of styles.

Embedded Qi Charger: A charger integrated into another appliance such as your desk lamp. Qi embedded chargers are still rare but gaining traction.

DIY Integration: If you are technical minded you can grab a Qi charger coil and install it into your desk, table or even inside another appliance. For example you can hollow out a section underneath your desk and install the charger. Then when your phone is in the right place on the desk it will charge. From the top the desk looks normal, but underneath is the charger.
at No comments:
Labels:

Time saving Windows shortcuts that increase your productivity

Windows have an unimaginable number of hot keys, we dived through them and unearthed this golden collection. Join us now and discover what we brought back from the depths, you wont become a pro keyboarder overnight but this is a small and solid starting point.

Internet Browsing

Ctrl+Enter – Automatically enter the .com to a web address!

Ctrl+Shift+N – New Incognito window.

Ctl+T – Open new tab in browser.

Ctl+L – Select web address for current page.

System Hot-Keys

Win Key +E – Opens File Explorer.

Win Key +R –Opens Run.

Win Key +L – Instantly locks your PC.

Win Key +F – Opens file search window.

Alt + Space – Opens the title bar menu of the page.

Window Tricks

Win Key +Arrow Up – Maximize the current window.

Win Key +Arrow Down – If in a maximized window it makes it into a smaller window. Pres it again and the window will be minimized.

Win Key +Arrow Left or Right – Moves window to the left or right of the display and also can be used into multiple monitors.

Win Key +Shift Key + Arrow Up – vertically maximizes the window.

Win Key +Tab – Cycles through the open apps, and release tab to select the app to open.

Win Key + Ctrl +Tab –Allows you to navigate through open apps using the up/down arrow keys.

Use a multi screen setup?

Win Key +P – If you have multiple monitors connected use to choose duplicate or extended .

Win Key +Shift Key + Arrow Left/Right – Moves window to the primary or secondary monitor.

How do shortcuts save time?

Hotkeys are like a dripping tap; a dripping tap slowly collects water, hot keys slowly collect time. They replace slower mouse movements and clicks, use them everyday in the office and in a week you will have collected a decent bucket of time. Add this to your favourites and show off your Microsoft proficiency. It will save you time and is also is a great way to impress your co-workers.

Don’t own a keyboard?

Well hopefully you have a PC and then you can get one of our mechanical keyboards for the best way to type and game. If you want to go totally custom you can even buy key caps and make your own unique key design.
at No comments:
Labels:

Thursday, 7 September 2017

Quality of Acer Laptops

As of March 2017, Acer laptops are generally less expensive than their competition. That is one of the reasons why consumers are drawn to the simple, no-frills machines. But that doesn't mean that Acer laptops are less reliable than other better-known laptop brands. Before purchasing an Acer laptop, ensure that it has all of the features and software that you need in your day-to-day computer usage. You may find that it has just the right amount of features, memory and functionality for the price.

Cost

As of 2017, most Acer laptops are priced between $400 and $800, but you can also find them on deep discounts during the holiday seasons and on sale throughout the year. The relatively low price can lead some to believe that Acer laptops are unreliable or lack basic features, but keeping the Acer brand in the lower-price range helps entice buyers past the less-than-recognizable name and lack of styling. Acer proves that you don't need to spend thousands of dollars to get a quality laptop.

Price

As of 2017, most Acer laptops are priced between $400 and $800, but you can also find them on deep discounts during the holiday seasons and on sale throughout the year. The relatively low price can lead some to believe that Acer laptops are unreliable or lack basic features, but keeping the Acer brand in the lower-price range helps to entice buyers past the less-than-recognizable name and lack of styling. Acer proves that you don't need to spend thousands of dollars to get a quality laptop.

Best For

It's true that an Acer laptop may under-perform for the experienced gamer or techie, warns "Laptop" magazine. An Acer-brand laptop is ideal as an individual's first laptop or a secondary computer to another laptop or desktop. While you may miss the customization options that other laptop brands offer, the focus on 2.5 hours of general battery life, large amounts of memory and general functionality are usually enough to please the casual computer user.

Reviews

Acer laptops are heavily reviewed by industry magazines and websites. In general, Acer laptops garner favorable reviews, although each outlet had similar complaints about the lack of styling and customization. However, high points were awarded by "PC" magazine and "PC World" for various Acer models' keyboards, speed, memory, battery life and general ease of use.
at No comments:
Labels:

Advantages and Disadvantages of Laptop Computers

Laptops are the middle ground of the computer world. Smaller than desktops and larger than tablets, they blend the two and provide a balance between portability and functionality. Even among laptops, there are varying sizes. Traveling professionals may prefer a compact 10-inch netbook, while movie enthusiasts prefer a big, HD 17-inch laptop. If you're considering a laptop for your next computer purchase, knowing where they shine and fall short enables an educated purchasing decision.

Size

One of the largest advantages laptops hold over desktops is their size. While desktops have similar functionality, they're difficult to move and traveling with them is highly impractical. While tablets offer more portability than laptops, the small form factor usually limits the quality of the components or their functionality. Netbooks are similar to tablets in that their small size and portability limits the quality, speed and size of components within. The size you see in a laptop's description or name denotes the size of the screen when measured diagonally. So a 15.1-inch laptop has a 15.1-inch screen across the diagonal. Laptops offer portability and desktop-level functionality for most tasks. Like the porridge in the Goldilocks story, laptops aren't too big to carry, but aren't too small to truly limit functionality.

Price

While the price gap between desktops and laptops is getting smaller as technology gets less expensive, laptops are typically pricier. The smaller components required for a laptop often cost more than their larger desktop counterparts since more technology goes into delivering the same quality on a smaller physical scale. That said, if your budget constrains your purchasing options, you can still find inexpensive laptops with lower-end specifications.

Intended Use

For students, office workers and light or average computer users, laptops provide plenty of power, speed and functionality. For PC gamers or people using resource-intensive programs, a laptop might not be the right choice. While some manufacturers offer high-quality gaming laptops, they typically cost more than comparable desktop models.

RAM and Hard Drive

Random Access Memory (RAM) is a large factor in computer speed, while hard drive capacity determines how much space you have on the computer for files, programs, games, music and other data. While desktops used to offer much higher specs in these fields, the gap is closing as technology advances and gets less expensive. That said, it's still common to find more RAM and a larger hard drive in a desktop when comparing desktops and laptops of similar price. As the two main components you can upgrade on a laptop, it may not be as big of an issue to you if you're comfortable doing the upgrade yourself. Laptop hard drives are physically smaller than desktop hard drives, but both have high-end capacities in the Terabyte range, or 1,024GB, with the laptop version being a bit more expensive. While you can also upgrade RAM, the space limitations in laptops might limit the computer's maximum capacity, where a similarly priced desktop might be capable of holding much more.

Customization

Laptops don't offer nearly as much customization as most desktops. Since desktops are larger, they're easier to open and alter, allowing you to swap parts and update components. While laptops typically give you access to the computer's memory and hard drive, other components -- like the processor, graphics card and cooling system -- aren't as easy to access and replace. This disadvantage means that when your laptop's non-customizable components become obsolete, you may have to buy a new laptop to keep up with technology. With desktops, you can switch out the obsolete component by itself for much less money than a new computer, extending the life of your current hardware.

Included Features

While desktops require an external monitor, keyboard and mouse for navigation and use, laptops offer everything you need in one form factor. This advantage means you'll have to buy less external peripherals, also reducing the clutter caused by the extra cords and pieces of hardware. Laptops also come with built-in speakers and often on-board webcams, further reducing the extra peripherals you'd need to buy if you got a desktop. While it depends on the model, many laptops include ports to connect them to your television or an external monitor when you do need a larger viewing area. If your laptop's built-in peripherals don't live up to your expectations, you can always buy external substitutes, like a wireless mouse or keyboard.
at No comments:
Labels:

What Is the Purpose of a Laptop?

Laptops are fully functional computers that are designed for portability and convenience. When compared to a desktop tower computer, laptops are smaller, weigh less, have fewer components and consume less power. Despite this, laptops can often match the performance and price of comparable desktops. This makes laptops a great choice for college students and busy professionals who travel often.

Less Weight

Laptops weigh significantly less than that of desktop machines. Laptops are made into a single unit and they have the ability to fold in half for easy transport. Throughout the years, hardware manufacturers have been able to shrink the weight and dimensions of laptops. With the introduction of Ultrabooks, computer companies have created laptops weighing around three pounds. On the other hand, a desktop computer is often enclosed in a large, bulky shell, making its portability severely limited.

More Desk Space

Anyone who has owned a desktop computer is familiar with the work space problem these machines create. The computer itself will often take up a good percentage of your limited desk space, and its weight and awkward dimensions make it a chore to move around. A laptop will take up much less of your work space due to its smaller size. Laptops can also run on battery power, without the need for a power cable or separate power adapter.desktop computer is familiar with the work space problem these machines create. The computer itself will often take up a good percentage of your limited desk space, and its weight and awkward dimensions make it a chore to move around. A laptop will take up much less of your work space due to its smaller size. Laptops can also run on battery power, without the need for a power cable or separate power adapter.

Fewer Peripherals

Traditional desktop computers need a stand-alone monitor, keyboard, mouse, speakers and wires to be fully functional. Laptop computers combine all of these separate peripherals into one device. The keyboard, monitor and speakers are built in to the computer itself and the trackpad acts as the mouse. A major advantage to no separate peripherals is the issue of complexity. With laptops, you only need a power source to operate.desktop computers need a stand-alone monitor, keyboard, mouse, speakers and wires to be fully functional. Laptop computers combine all of these separate peripherals into one device. The keyboard, monitor and speakers are built in to the computer itself and the trackpad acts as the mouse. A major advantage to no separate peripherals is the issue of complexity. With laptops, you only need a power source to operate.

Travel and Portability

Laptops are made for portability due to their slim design and light weight. They can securely fit into almost any backpack and can be carried without much fatigue. Thus, you can easily take a laptop to locations most convenient to you, such as classrooms, coffee shops and hotels. Laptops also have a built-in Wi-Fi adapter that lets you connect to the Internet in places with a wireless network. are made for portability due to their slim design and light weight. They can securely fit into almost any backpack and can be carried without much fatigue. Thus, you can easily take a laptop to locations most convenient to you, such as classrooms, coffee shops and hotels. Laptops also have a built-in Wi-Fi adapter that lets you connect to the Internet in places with a wireless network.
at No comments:
Labels:

Wednesday, 6 September 2017

How to Charge a Laptop Battery for the First Time

One of the most vital components of any laptop computer is the battery. You can purchase a laptop with a powerful processor and other top-of-the-line hardware, but if you don't properly care for the battery, the laptop is quickly rendered useless. When you first purchase a new laptop or laptop battery, make sure you charge it properly the first time.

Insert the battery into the battery slot of your laptop if it didn't come with the battery already inserted. This slot is typically located on the underside or back of your laptop.

Plug your laptop into a power source and allow the battery to charge to 100%. Most laptop batteries come discharged, or empty, and should be fully charged before use. Sometimes the battery indicator will show 100% after only a few minutes. If this happens, turn your computer off, remove the battery and attempt to charge the battery again.

Discharge the battery fully. Simply turn your computer on and disconnect the power source. Don't turn it off until the battery is completely discharged. Allow the laptop to shut down by itself.

Recharge your battery fully again. After the battery is fully charged, it has been calibrated once.

Repeat the calibration process two or three more times. Your laptop battery is now charged correctly.

02K5669 IBM Thinkpad T20 Change Power Supply fast shipping
0335C2065 0335A2065 FUJITSU SIEMENS Change Power Supply fast shipping
11.8A Dell XPS M1730 PN402 DA230PS0-00 PA-19 230W AC Power Adapter Charger Change Power Supply fast shipping
120W ADP-120MH-D AC/DC Laptop AC Adapter for MSI GE60 GE70 19.5V 6.15A

1513 24W Microsoft Surface 2 Windows RT 1512 1513 Change Power Supply fast shipping
at No comments:
Labels: , ,
Subscribe to: Posts (Atom)

Popular Articles