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How to sit infront of computer?


Whether you are using Windows PC, MAC computer or Google Chromebook – it is important to maintain proper body posture while using these devices. You may suffer physical harm if using these devices if wrong body posture is kept. RSI (also called Repetitive Strain Injury) could be possible outcome of prolonged usage of devices in bad body posture. Hence, it is important to maintain correct body posture while you use and sit in front of computer or laptop.

Adjust ‘body posture’ while sitting on chair

Since height of each individual is different, it is important to adjust corresponding height of chair and table desk for proper overall body posture while you sit and work on computer.

1. Adjust height of desk and chair accordingly so that your arm forms a right angle when you place your hand over the keyboard while sitting on the chair.
2. Adjust height of chair so that heel of your foot is comfortably placed on the floor. Also, keep the center of leg weight not on the chair but on the feet while sitting on the chair.
3. Adjust back of the chair so that your waist is straight while you sit on chair in front on the computer. Use proper good quality office chair with comfortable back to prevent any physical pain as you sit on the chair for long time.
4. Do not use phone kept on shoulder while you sit on the chair. Alternatively, you may use headsets for comfortable phone conversation without causing any strain on shoulders.
5. When using laptop or portable computing devices – do not lie down on bed or on the floor while using them. Also, avoid placing laptop on your lap – this can result in excessive heat and may cause burning sensation.  If possible, always use them in proper position while sitting on chair with laptop placed on the table.

Adjust ‘eye position’ & monitor display height


Eyes can get real tired after prolonged computer usage. While there are tips to prevent eye strain from computer use – maintaining proper eye position also helps in reducing risk to well being of eyes.

1. Do not place monitor or display screen too close to your eyes. You should maintain atleast 50 cms distance between eyes and the monitor.
2. Besides the distance, adjust vertical height of the monitor for comfortable usage. Adjust height of the monitor so that its top height is equal or lower than your eyes.
3. Adjust screen brightness according the light conditions in your room. Do not use too bright display as it can tire and dry your eyes quickly. Hence, it is recommeded to reduce monitor brightness for comfortable viewing.
4. Keep monitor clean and free from dust and greasy hand stains to prevent any strain on eyes while viewing the display on the screen.
5. If you wear glasses, make sure you keep them clean for neater view of the display screen. If possible, get anti-glare glasses as they have least light reflection and more clearer view of bright objects.

Adjust ‘hand arm position’ while using Computer


With mouse and keyboard usage, arm and hands are extensively used while working on computer. Hence, it is important to keep arm position in correct state to prevent any physical pain or injury.

1. Try to keep arm at right angle at most times while using keyboard and mouse in the front of the computer.
2. Do not rest your palm on the keyboard while tying. Keep palm above the keyboard and softly press keyboard keys while typing. This will not tire your palm or fingers even after prolonged typing session.
3. Hold mouse with complete hand while you move it around for working on the computer. Also, do not apply too much force while using mouse.
More tips for Proper posture while using Computer
1. If using laptop for long time, you may connect external mouse and keyboard for more comfortable usage as trackpad and small keyboard on laptop can tire hands and fingers quickly.
2. Take adequate breaks while using computer for long time. Stand and move away from your workstation to refresh yourself.
3. Mainting proper light and temperature in the room for proper computer usage. Extreme light and temperature may result user adopt bad body posture to use computer. [Images & Credits: Samsung.com/support]



This article was written by Davinder.If u like this article you can check his updates here.

Web Browsers for Kids safe internet


Internet has both good and bad sides of online content access, sharing and interaction. With kids accessing internet, parents are worried lot on how to manage their child’s internet access. Fortunately, there are number of ways to keep check and provide Kids safe internet environment. Besides teaching and advising kids on what type of content should be accessed, parents can also download / install special web browser software that only allow access to kids safe content on the internet.
1. KidZui – Internet for Kids
KidZui – Internet for Kids
KidZui is most popular and very efficient web browser for kids. You can download it as standalone web browser or use as Firefox plugin for effective parental control. KidZui browser provide access to Kids friendly version of Youtube website featuring funny videos and that of Kids favorite celebrities like Justin, Miley.

It also feature quality games that helps in kids overall development. This includes mind puzzles, dress up games, arcade and other games like Lego Indiana Jones or Secret Bear World. It features new and interesting online resources for kids like new kids websites and tools.
2. PikLuk – Kids safe Internet
PikLuk – Kids safe Internet
Pikluk is another excellent web browser specially designed for kids. As a parent you can control all the content that your kid can access and even disable access to stuff you feel is not good for your child. You can login into dashboard at pikluk.com from anywhere (even while at work) to keep check on kids email interactions and allowed websites.

Also, while your kid use internet through PikLuk browser – other parts of computer cannot be accessed like file and documents stored on computer. Browser has funky and colorful interface – which your kids will love and you as a parent will like this because of its strict online content restrictions feature.
3. Internet Explorer – IE 9 kids safe browser
IE 9 kids safe browser has been made available by CEOP (Child Exploitation and Online Protection Centre) and Microsoft. This is a customised version of Internet Explorer browser for children with instant access to CEOP’s one stop shop for Internet safety.
Internet Explorer – IE 9 kids safe browser

This is only available for Windows 7 OS users using Internet Explorer browser. Just visit the website and upgrade your existing IE 9 browser with CEOP kids protection. For sure a better alternative, if you do not want to install standalone browser for your child (but those special browsers do provide better control than this IE9 upgrade).
4. Zac Browser – kids with Autism & special needs
Zac Browser is a free download-able web browser software developed specially for kids with Autism and special needs. It provides lot of features to manage content and other customizations. You can control kids browser usage by setting timer. Besides PC, it is also compatible to work on mobile and tablets.
5. Firefly – Simple web browser for kids
Firefly is a simple web browser software for kids. Windows users can install this web browser to provide their kids a safe internet surfing interface. This browser starts from luciboo.com and you can navigate further to liked pages or websites added in favorites. It provide kids safe Google search results and parents can set timer to restrict usage duration to specific amount of time.
Besides above, parents need to be play active and constructive role in monitoring child’s online activity. You can follow online safety tips to prevent exploitation and bullying of kids online. Windows 7 users can configure parental controls to restrict access to certain installed programs.

This article was originally published in tothepc.com

Five Reasons to Eat Organic Apples


There are good reasons to eat organic and locally raised fruits and vegetables.  For one, they usually taste better and are a whole lot fresher.  Yet most of us can’t afford to buy all our food at the farmer’s market or natural foods store, and in many places, locally produced and organic foods are a struggle to find.
So if you can only buy a few organic fruits and vegetables – which should it be?  Which single piece of produce could have the greatest impact on agriculture, the environment and your family’s health, all at once?

The data says: apples

Reason #1: The average conventionally grown apple has more pesticide residue on it than any other fruit or vegetable.

According to the Environmental Working Group‘s analysis of USDA data, pesticides showed up on 98 percent of the more than 700 apple samples tested (yes, they were washed).  And it wasn’t just one pesticide either – apples from around the country, domestically grown and imported, were found to have up to 48 different kinds of pesticides on them.  While less than the 69 types used on cucumbers, that’s still far more than the single pesticide found in sweet corn (shucked) or the 15 on oranges (peeled).

Reason #2: We are not quite sure what some of those pesticides do to humans or the environment.
Apples are commonly sprayed with Syngenta‘s fungicide Paraquat, a pesticide under scrutiny for a possible link to Parkinson’s disease.  Additionally, apple growers in Michigan received an exemption for the last three years (and have recently applied again) for “emergency use” of the unapproved antibiotickasugamycin.  While not an antibiotic currently in use by humans, data on its affects on ground water and animal reproduction and development are not known.
Additionally, several new studies question if even allowable levels of pesticides do harm to humans, particularly organophosphates – substances the USDA reports are found on 81 percent of all conventionally grown apples.
Five Reasons to Eat Organic Apples
Reason #3: Farm owners and workers like to live and work in safe environments too.
Even if the pesticide residues break down and are no longer found on the apple when you purchase it, those who spray the pesticides, and their communities, are affected by the chemicals directly.
The USDA’s 2007 Agricultural Resource Management Survey (ARMS) of organic apple producers found that most farms chose organic methods because they could increase their income.  But many also said they grew organic apples primarily to protect the health of their families and of the community, and because many wanted to adopt more environmentally friendly practices.
The problem with chemical use on farms is that someone has to apply them, and often communities nearby are hit with pesticide “drift.”  
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What is 4G?

In telecommunications4G  Also known as "Beyond 3G", is the fourth generation of cell phone mobile communications standards. It is a successor of the third generation (3G) standards.


4G is all about convergence; convergence of wired and wireless networks, wireless technologies including GSM, wireless LAN, and Bluetooth as well as computers, consumer electronics, communication technology and several others. 4G is a Mobile multimedia, anytime anywhere, Global mobility support, integrated wireless solution, and customized personal service network system.

4G wireless technology is also referred to by “MAGIC” which stands for Mobile multimedia, Any-where, Global mobility solutions over, integrated wireless and Customized services. 
What is 4G?

4G is an all IP-based integrated system will be capable to provide 100 Mbps for high mobility and 1 Gbps for low mobility , with end-to-end QoS and high security, and will offering various services at any time as per user requirements, anywhere with seamless interoperability, at affordable cost. The user services include IP telephony, ultra-broadband Internet access, gaming services and High Definition Television (HDTV) streamed multimedia.


Moving Beyond 4G
4G is not the end of all. "5G Technology" is already in research arena and is bound to up the data rate further.5G is going to alter the way of our usage of our cellphones; may replace our Desktop PCs/laptops. Coupled with innovations being done in the field of smart sensors, 5G mobile phones with extremely high data rates, IP core, and world-wide coverage will offer features which have not imagined so far.

What is lte?


Long Term Evolution (LTE), is a radio platform technology . LTE uses Orthogonal Frequency Division Multiple Access (OFDMA) on the downlink, which is well-suited to achieve high peak data rates in high spectrum bandwidth. LTE is part of the GSM evolutionary path for mobile broadband, following EDGEUMTSHSPA (HSDPA and HSUPA combined) and HSPA+.

In the same way that 3G coexists with second generation (2G) systems in integrated networks, LTE systems will coexist with 3G systems as well as 2G systems. Multimode devices will function across LTE/3G or even LTE/3G/2G, depending on market circumstances.

What does LTE provide?
  • Peak theoretical downlink throughput rates of 326 Mbps in a 20 MHz bandwidth channel with 4X4 MIMO and 86 Mbps uplink in 20 MHz
  • Operation in both FDD and TDD modes
  • Scalable bandwidth up to 20 MHz, covering 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz and 20 MHz in the study phase
  • An increase in spectral efficiency of two to four times that of HSPA Release 6
  • Reduced latency to 10 milliseconds (ms) round-trip time between user equipment and the base station and to less than 100 ms transition time from inactive to active
What is lte?
 What are the main benefits of LTE? 
A simplified, flat architecture from an all IP, packet-based network helps to reduce both latency and cost for LTE. The OFDM technology used by LTE also serves to lower operators' equipment costs. The technology also uses a worldwide standard that has garnered broad support from operators across the globe.

An important feature of LTE is the amount of flexibility it allows operators in determining the spectrum in which it will be deployed. Not only will LTE have the ability to operate in a number of different frequency bands (so operators will be able to deploy it at lower frequencies with better propagation characteristics) but it also features scalable bandwidth. Whereas UMTS/HSPA uses fixed 5 MHz channels, the amount of bandwidth in an LTE system can be scaled from 1.25 to 20 MHz. This means networks can be launched with a small amount of spectrum, alongside existing services, and adding more spectrum as users switch over. It allows operators to tailor their network deployment strategies to fit their available spectrum resources and not have to make their spectrum fit a particular technology.

LTE will increase spectral efficiency over Rel-6 HSDPA by a factor of two to four, approaching 2 bps/Hz in the downlink and 1 bps/Hz in the uplink in ideal conditions.

What is 3G?


3G refers to the third generation of mobile telephony (that is, cellular) technology. The third generation, as the name suggests, follows two earlier generations. 3G brings in an era of high internet speed and data transfer in mobile devices.  It enhances internet speed that enables us to enjoy myriad features like video calling, faster audio and video streaming, quicker downloads, live TV and a superior social networking experience.

3G provides the additional advantages of data transfer. 3G uses superior software called High Speed Downlink Packet Access (HSDPA), which allows users to send any kind of data, including graphics, audio and video content, many times faster than current 2G networks.
The International Telecommunications Union (ITU) defined the third generation (3G) of mobile telephony standards IMT-2000 to facilitate growth, increase bandwidth, and support more diverse applications. For example, GSM could deliver not only voice, but also circuit-switched data at speeds up to 14.4 Kbps. But to support mobile multimedia applications, 3G had to deliver packet-switched data with better spectral efficiency, at far greater speeds.


3G technology itself is available in two different forms – WCDMA and HSDPA. While the broader spectrums of 3G benefits are provided by both, they are some subtle differences between them.

 W-CDMA or Wideband Code Division Multiple Access is a 3G network interface that allows data connections up to 384 kbps per user (64kbps, 128kbps, 384 kbps) in optimum conditions.

HSDPA or High-Speed Downlink Packet Access on the other hand, is an enhanced 3G interface that enables higher data transfer speeds and capacity. While both are an integral part of 3G technology, the latter provides enhanced speed and capability and is also known as 3.5G.
What is 3G?

In otherwords,3G networks are wide area cellular telephone networks which have evolved to incorporate high-speed internet access and video telephony. It offers large capacity and broadband capabilities. It has greater network capacity through improved spectrum efficiency. 3G technology supports around 144 Kbps, with high speed movement, i.e. in a vehicle, 384 Kbps locally, and up to 2Mbps for fixed stations, i.e. in a building. 3G technology uses CDMA, TDMA and FDMA. The data are sent through Packet Switching. Voice calls are interpreted through Circuit Switching. It is a highly sophisticated form of communication that has come up in the last decade.

3G has the following enhancements over 2.5G and previous networks:
·               Enhanced audio and video streaming;
·               Several Times higher data speed;
·               Video-conferencing support;
·               Web and WAP browsing at higher speeds;
·               IPTV (TV through the Internet) support.
·               Global Roaming
There are many 3G technologies as W-CDMA, CDMA2000. UMTS, DECT, WiMAX.

3.5G – HSDPA (High-Speed Downlink Packet Access)
High-Speed Downlink Packet Access (HSDPA) is a mobile telephony protocol, also called 3.5G. It is an enhanced version and the next intermediate generation of 3G UMTS allowing for higher data transfer speeds.
HSDPA is a packet-based data service in W-CDMA downlink with data    transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. This high data rate is enabled by use of adaptive modulation can coding (AMC), hybrid automatic repeat-request (HARQ), and fast packet scheduling at the access point

3.75G – HSUPA (High-Speed Uplink Packet Access)
High Speed Uplink Packet Access (HSUPA) is a UMTS /WCDMA uplink evolution technology. The HSUPA mobile telecommunications technology is  directly related to HSDPA and the two are complimentary to one another.
HSUPA will enhance advanced person-to-person data applications with higher and symmetric data rates, like mobile e-mail and real-time person to person gaming.


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