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Showing posts from 2016

Should I use TKIP or AES on my router?

TKIP is an older encryption used by WPA1 and AES has been modified for use with newer WPA2. Hence you must use WPA2/AES only.

What are the highlights from Sep 7th Apple iPhone Launch?

1. Super Mario Comes to App Store 2. Apple Watch goes waterproof 3. Nike Teams up for Next version of Apple Watch 4. Real-time Collaboration comes to Apple Docs, Sheets 5. Apple Introduces Wireless Headphones called AirPods 6. Apple Introduces iPhone 7+ having a dual lens camera and partial dust + waterproof. 7. Apple Music now has 17 Million Subscribers.

How does Angular2 compare with React?

One is developed by Google and other by Facebook. One uses Typescipt as an intermediate language and the other uses JSX. One uses Ionic and other uses React Native. But there is more to the differences. Here is a page that sums it all.

What is the US and India fiscal deficit trend lately?

The U.S. Treasury reports the federal budget balance on a monthly basis.The deficit for the first 11 months of the U.S. fiscal year was $589 billion in 2014. The deficit reached a peak of $1.4 trillion in 2009. However, it has been improving since then. The deficit as a percentage of gross domestic product (or GDP) has been declining.For June 2014, the deficit as a percentage of GDP was only 3.1%. This is a comfortable level—compared to the 9%–10% levels in 2009. The deficits continue to accumulate. They keep getting added to the U.S. federal debt. The federal debt has exploded since 2008. A steeply increasing deficit is concerning in the U.S.However, the situation is getting better. The deficit is manageable.  Beating its own financial target, the Indian government has contained the fiscal deficit at 3.99 per cent of GDP in 2014-15 to Rs 5.01 lakh crore. 

What is the difference between Parallelism and Concurrency?

What is the difference between parallelism and concurrency? Concurrency is when two or more jobs are being performed at the same time. One is 'paused' for a short duration, while the other is being worked on. Parallelism requires that at least two "workers" actively performing jobs in parallel. This means that you require at least two 'processors' for parallelism.

What is BREXIT and what will it mean to everyone?

Last year this time we were all talking about GREXIT now we are here a year later talking about the four letter E word and this time it is BREXIT. For the uninitiated, BREXIT is the referendum Britain is going to have at the end of June for either Staying or Leaving the European Union. 1973 was when Britain joined EU and they did not even join Euro so at the very beginning they were not comfortable of clubbing everyone in Europe with them. Now they are contemplating to leave EU again and in the short term it may have some risks. Some of them that come to my mind are below. People internally are divided in Britain in terms of staying or leaving. EU is bigger than US in terms of GDP. Business confidence may be affected and it may lead to a recession in business investment. Pound Sterling may lose value a bit.  US companies may have a tough time selling in Europe and that may lead to US slowdown. One risk is that Scotland may want independence from UK even more now since they are really w

Any way to learn some key languages in 30 mins!!

Here it is

Which Flash Player version is my system on?

You can check it very conveniently here

What is LTE-U?

Cellular Carriers ordinarily rely on the radio spectrum to which they have exclusive licenses, LTE-U would share space with Wi-Fi equipment like home and business hotspots etc. LTE-U is intended to let cell networks boost data speeds over short distances, without requiring the user to use a separate Wi-Fi network.

What does it mean to re-classify equity with a class structure?

It is a juggling game in which the founders of the company can keep control and still give away economics tied to the equity like dividends etc. Berkshire, Google, Alibaba have all done it in the past. Now facebook also has decided to do the same. Facebook currently has a dual-class structure: Class A shares, which are what trade under the ticker "FB" on public markets and have one vote per share, and Class B shares, which have 10 votes per share and is what company insiders own. The Class B shares don't trade on an exchange. Now, for each outstanding Class A and Class B share held by our stockholders, Facebook intends to issue two new Class C shares as a one-time stock dividend. The Class C shares will have the same economic rights as the existing Class A and Class B shares. The primary difference is that the Class C shares are non-voting.So in effect FB has split 3:1. There will also be a new ticker for the Class C stock that will trade on the exchange.

What and Why is Comprehensive Business Tax Reform in USA Important?

The United States now has the highest statutory business tax rate among the major industrial countries. The companies owe taxes at the full U.S. corporate tax rate of 35 percent on profits they earn around the world. They get tax credits for payments to foreign governments and don't have to pay the residual U.S. tax until they bring the money home. Among most other developed nations, U.S. is the only one that taxes foreign income.This places businesses at a distinct competitive disadvantage since most foreign competitors are not required to pay a similar tax to their home countries. This particular aspect of the U.S. tax code poses real challenges when it comes to global investment decisions and the return of foreign profits to the U.S. A reduction in the business tax rate to at least 25% must be accompanied with other proposed reforms such as reevaluating whether foreign tax credits are necessary given that they are utilized as an offset against the high corporate tax rate.  The cu

How to visualize a weight of 1 Newton and How much force does 1 N-Meter have?

This is how you can explain it to a fifth grader. Imagine having a 102 gms dumbell on one of your hands.  The weight on your hand due to this dumbell and earth's gravity is around 1 Newton (102 gm x 9.8 m/s/s). Now imagine a one meter long spanner hooked to a nut and you put this dumbell on the end of that spanner. The twisting force on the nut due to this dumbell and that one meter long spanner will be around 1 Newton-Meter.

How to Upgrade the RAM on a Unibody MacBook from 2010

The unibody MAC from 2010 comes with a 2GB memory. You can upgrade it to an 8GB memory using this video below Memory Upgrade Video

What is TAC and who is it important to?

TAC includes the Transfer Acquisition Cost that Search Engines pay to search distribution partners for distributing Google/Bidu/Yahoo Search as distinct from their own branded search.  TAC can be thought of as the cost of doing business for Search Giants.

What is Skylake and how does it compare with Broadwell or Haswell?

Haswell, Broadwell and Skylake are are codenames for the respective 4th, 5th and 6th Generation iterations of Intel's processor microarchitechture. Broadwell is perceived as a version upgrade from Haswell however Sklyake is a major microarchitecture re-design. Apple has introduced the latest lineup of Laptops that now use Intel Core M processors based on Skylake. Core i5/i7 are faster than Core M. Core M lies in between the ATOM and the Core i5/i7 series but on a Skylake Architecture however. Intel has the Core i5/i7 versions on both Skylake and Broadwell.

What is Hadoop Streaming and Why Should I use it?

Hadoop, formally called Apache Hadoop, is an Apache Software Foundation project and open source software platform for scalable, distributed computing. Hadoop can provide fast and reliable analysis of both structured data and unstructured data.  Hadoop can scale up from single servers to thousands of machines, each offering local computation and storage. Hadoop consists of HDFS and MapReduce HDFS uses a master/slave architecture in which one device (the master) controls one or more other devices (the slaves). MapReduce takes care of scheduling tasks, monitoring them and re-executing any failed tasks.  Even though the Hadoop framework is written in Java, programs for Hadoop need not to be coded in Java but can also be developed in other languages like Python or C++. You can translate your Python code using Jython into a Java jar file but this is not convenient. Or you could write the code in python itself. The "trick" behind the following Python cod

What are the key ideas from Facebook Developer Conference 2016?

Speaking to 2600 developers around the world Mark Zuckerberg laid down three main areas of focus for Facebook in the coming 2-3 years. 1. Artificial Intelligence - Sifting through information shared by users like photos and videos, text. 2. Connectivity - Internet connectivity for all through drones or lasers 3. Virtual Reality/Augmented Reality - Meeting virtually friends across the globe using "normal" glasses than those thick geeky ones.

How do I prevent a batch file from waiting on a program?

Use the START command within your script. Here is a detailed explanation.

What is the Global Android and iOS Market Share?

IDC Suggests that overall smartphone market grew 13% YOY in 2015.  Android dominated the market with an 83% share in 2015 Q2 and  iOS enjoyed a 14% share. So between iOS and Android, there is about 97% market right there.

As of April 2016 what is the most used Android OS Version?

From Google's Dashboard  seems like 4.x is on 57% of devices. 5.x is on 35% of devices With around 5% on the newly released 6.x Marshmallow.

Is multiprocessing possible in Python?

If your machine has a single processor you can use the module named threading for python to spawn multiple threads on single core. If your machine has more than one processors which is the case mostly these days, then due to global interpreter lock, threading module will not work for you. In this case you have to use another module named multiprocessing. Here are simple examples of multiprocessing module from PyMOTW import multiprocessing import time import sys def daemon():     print 'Starting:', multiprocessing.current_process().name     time.sleep(2)     print 'Exiting :', multiprocessing.current_process().name def non_daemon():     print 'Starting:', multiprocessing.current_process().name     print 'Exiting :', multiprocessing.current_process().name if __name__ == '__main__':     d = multiprocessing.Process(name='daemon', target=daemon)     d.daemon = True     n = multiprocessing.Process(name='non-

Should I relocate to SD for my startup from SFO?

You probably should.  Here are the reasons why.

Is WiMax Dead Now?

It is probably dead as a mobile technology but has life as a fixed tech. Here is an interesting blog post from me from 2007 on WiMax from my other writings.

How to make a nice AC Alternator for kids' project?

https://www.youtube.com/watch?v=wU5BWgouuYg

What does LTE Advanced Pro Promise us?

LTE Pro will be an "intermediate" standard before the wireless industry continues with "Release 15" in 2020 and beyond, also known as 5G technology. LTE Advanced Pro is essential Rel 13/14. Below is what LTE Advanced Pro will deliver. Carrier Aggregation Delivering fiber-like speeds by using Carrier Aggregation (introduced with "LTE Advanced" networks in 2013) to aggregate more carriers, and to use simultaneous connections to different cell types for higher spectral efficiency LAA In short, Licensed Assisted Access (LAA) is the 3GPP's effort to standardize LTE use inside of 5GHz WiFi spectrum. It was introduced in 2015 and allows mobile users to simultaneously use both licensed and unlicensed spectrum bands at the same time.  Full Dimension MIMO This technology uses elevation beamforming by using a 2D antenna signal array in order to exploit 3D beamforming. Later down the road in 3GPP Releases 14 and beyond, we can expect support for higher-order "

How should we replenish bore-wells by recharge?

Here it is  We are planning for the same https://www.youtube.com/watch?v=91K-28X7qcM

How are US Presidential Elections Held?

Here is a summary.... Over a period of a year, the states and territories and citizens living abroad hold their primaries or caucuses. Super Tuesday is when maximum number of states hold primaries or caucuses together. When finished, the delegates representing the citizens who voted in those elections travel to the national convention. Most of the delegates are forced to vote as the citizens of their state wanted them to but some of them are free to vote as they like. At the national convention the delegates meet up with the super delegates and together they make the final decision on who will be the nominee of for the president of USA. Note: Primary vs Caucus : Primary is like secret ballot for citizens to vote independently and caucus is like a discussion that happens first and sides are taken in groups. Note: Citizens vote for delegates and not the candidates themselves. Delegates then pick nominee along with super delegates. Note: Super Delegates a

How many subscribers does Apple Music Have?

As it stands in 2015 several months after launch, Apple Music has 1/3rd the paid subscriber base as Spotify. So Around 7 Million for Apple Music vs 21 Million of Spotify

What different alliances are there for iOT?

There is a lot of noise in this area. With IBM opening up Quark Dev Platform and Industry showcasing AllJoyn, there are many alliances Here is an important alliance https://allseenalliance.org/alliance/members Here is the list of other alliances. http://postscapes.com/internet-of-things-alliances-roundup

Is Virtual Reality Picking up?

Yes it seems like now this technology is trying to come out of niche and be main stream. FB has Oculus in the cards, Google has cardboard and Apple has PrimeSense/MetaIO

Who holds the most LTE Patents?

This is something that needs actual investigation into the ETSI database but Samsung claims that it has more than 3,600 standard essential patents (SEP) for the LTE and LTE-Advanced (LTE-A) technology, citing a 2014 report by Taiwan's intellectual property office. That is 17 percent of all LTE-related SEPs. It also claims that LG Electronics and Qualcomm followed Samsung Electronics in second place with 14 percent of SEPs, each. Ericsson, Panasonic, Nokia and NTT DoCoMo hold the third spot with 5 percent, each. So 70% patents held by these 7 companies. Take these numbers with a pinch of salt.

What is FIDO Spec for BioMetrics?

Unlike Apple's Touch ID and the SamSung's Sensor which happens to be capacitive, the FIDO Spec is pushing for ultrasonic. It can work in presence of disturbances between finger and sensor. That is a HUGE advantage.

Why is CQ56 Presario showing OSOD sometimes?

May be related to battery woes.... http://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Presario-CQ62-hangs-at-orange-screen-instead-of-booting/td-p/4503476 http://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Laptop-won-t-get-past-Compaq-product-screen-Can-t-do-system/td-p/1327729 https://in.answers.yahoo.com/question/index?qid=20120319202714AA9vX7t

Any tools for creating screencast videos?

Here are the tools http://www.educatorstechnology.com/2012/06/8-free-and-simple-tools-to-create-video.html