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Wednesday, November 25, 2015

Li-Fi : Will It Be Great Alternative To WiFi?

Li-Fi, a super-fast alternative to Wi-Fi is finally getting in real world with its massive speed. It can provide upto 1 Gbps, which is 100 times faster than current Wi-Fi. So one can download a full HD movie within few seconds.

What is Li-Fi?

Light Fidelity or Li-Fi is a wireless technology allows data to be sent at high speed using visible light communication (VLC). It uses IEEE standard 802.11 a/e for its wireless communication.

Li-Fi allows user great security on local networks as light can not pass through walls provides less interference between devices. The technology offers great speed of 224 Gbps in perfect Lab conditions. Li-Fi could be much more cheaper than Wi-Fi.

Disadvantages:

  • As the system uses light spectrum to send and receive data, the range of the system is very limited as light can not pass through walls. 
  • The reflected light from walls can downgrade the performance of this system which can affect its reliability.
The inventor of Li-Fi, Professor Harald Hass from university of Edinburgh, has claimed that in the future every LED light bulb could be used as ultra-fast alternative to Wi-Fi. Hass said, "In the future we will not only have 14 billion light bulbs, we may have 14 billion Li-Fis deployed worldwide for a cleaner, greener and more bright future."  It is difficult to create a whole new infrastructure for Li-Fi so it will be a challenge to integrate current systems to make it compatible with Li-Fi. 

Thursday, November 19, 2015

Charging Mistakes Those Kill Your Smartphone.

Overcharging The Phone

If your palm is sweating after disconnecting the phone from charger when it shows 100% charged, You are overcharging your phone which leads to bad battery performance. Maintaining your phone to 100% always is not an efficient way to keep battery strong. People often connect their phones to charger when its below 90%. Do not charge your phone too often. Let it go below 70% then connect the charger.

Letting Your Phone Die Frequently

Some people starts their day with 30-35% juice and at the end of the day it drops to 1-2%. Frequently letting your phone battery die is bad for Li-ion batteries. For better battery performance the phone should not show "Low Battery" warning too often. If you are switching off your phone for long time make sure you have charged it to at least 50%, if you keep the battery completely depleted then it will get into state known as "Deep Discharge State" which can severely affect battery life. 


Overheating The Batteries

Never keep your smartphone under direct sunlight for too long period. This will overheat the battery and can permanently damage your smartphone. Playing games or watching videos on phone while its on charging can degrade the battery life and performance of your phone. Avoid talking on phone while its charging because it can overheat the phone and it will be harmful to user also. To avoid overheating charge your phone in cool places and remove phone covers while charging.

Battery Banks

Battery banks are very popular as a backup for your phone. But using it too often can lead to bad battery performance and it can damage your battery bank too.

Avoid Using Wrong Chargers

Every smartphone is designed differently, so the chargers came with the box is designed to provide perfect current and voltage rating. Some smartphones chargers have built-in kill power facilities when phone is fully charged. Using cheap or wrong chargers and USB cables can damage your smartphone due to its different power ratings.

For Better Battery Life

  • Let your phone discharge completely then charge it to 100% once in a month.
  • Keep Wi-Fi, Mobile Data, Bluetooth Off when you are not using it.
  • Uninstall useless applications from your phone. 
  • Uninstall the applications which overheats your phone while using.
  • Clearing caches and rebooting your phone once in a week can help in better performance.
  • Keep your smartphone in Flight mode while travelling to long distance as phone will drain more battery for low or no range/ network locations and for searching the network.

Friday, November 13, 2015

Sony PlayStattion 4 Gets 3.11 Update.

Sony has released a new update for the PlayStation 4 console. The update weighs 250.4MB in size and will improve performance, and also include improvements to stability. Sony PlayStation 4 was launched in India in December 2013 at price tag of Rs. 39,999. Sony has dropped the prices of PlayStation 4 which is now available at Rs. 32,990.

At other side Microsoft is planning to release Windows 10 update for Microsoft Xbox One which is competitor of Sony PlayStation 4. This update will include game streaming. Gamers will be able to stream games to any PC or tablet running Windows 10, through the Xbox app. It will also integrate Cortana into Xbox One console.
Sony is working on the PlayStation VR headset, which was earlier known as Project Morpheus. According to the company's statement the device will be released in early 2016. Meanwhile, Microsoft is working on the Hololens augmented headset, which will cost $3,000. Both companies are also planning to introduce virtual reality-augmented reality to gaming.