Apps Masters Web, iPhone and Android App Development, Web design and SEO Wed, 21 Jan 2015 23:29:22 +0000 en-US hourly 1 Amazing Features of Node.js that makes it in top 5 Server Side Scripts Wed, 14 Jan 2015 20:54:04 +0000 Node.js is an Server side scripting,open source, cross-platform built on Google Chrome V8 JavaScript runtime environment for easily building fast server-side and   scalable networking applications.

Its multiple advantages over other server side languages, Node.js inbuilt with a dependable package management system called NPM and its registry which is easily built and publish software and libary as packages.

how nodejs works

Node.js is functionally similar to the PHP + Apache or ASP + IIS stacks,and its applications works as an non-blocking I/O model,event-driven which are scripted in javascript and debugs within the Node.js runtime on Linux, Microsoft WIndows ,OS-X and Free BSD.

There are no classes in Node.js/JavaScript, because its objects inherit directly from other objects (prototypal inheritance). Node.js has natural with NoSQL databases like MongoDB, NoSQL databases are mostly use for cloud computing, agile projects and prototyping which are very secure and easily recoverable.


The syntax of node.js is the set of rules that define a correctly structured JavaScript program. JavaScript is mainly used for client-side scripting within modern web browsers.

Context switch

Node.js switch between different environments and languages is attributed to the drop of efficiency when writing software code.

Node.js is contains less context switches.


Node.js comes with a superior and dependable package management system called NPM and its registry and administered via the package.json file and version locally, unless lib installed with the -g option. Both PHP and Node.js are functional languages with a relatively later addition of OOP to PHP.


Node.js is growing faster than any other platform/language. This is mostly due to minimal modules and performing only a small set and sub-sets of tasks. Other factors might include such things as:

  • Existence of the specs, and abundance of JavaScript resources and gurus (such as Doug Crockford) amassed during the language’s many years of existence
  • Ease of NPM use, e.g., to publish an NPM module run $ npm publish
  • NPM is a default for Node.js and package manager for JavaScript.



Node.js works on collection of web frameworks few of them are Meteor, Express,, Sails, Mean, Koa, Socketstream, Spine, Tower, Total.js, Flatiron,,, Frisby,Stapes,, Sleek.js and some of most popular build systems for web are also available which made development with ease grunt, bower, yeoman and another futur player glup.js,


Real-time apps

Real-time apps building is just a breeze with Node.js stack of the , Express.js frameworks. another full stack players are Derby projects, Meteor, which makes real-time apps building is taken one step further by combining front and back-end code bases with the persistence layer which reduces the complexity and speeds up the development dramatically. event driven programming in node js making web development to another level.


Database apps

Node.js is natural with NoSQL databases like MongoDB.

The databases’ performances are comparable to each other and  depending on the use cases as per MySql vs MongoDB performance benchmark(MySQL), Simple Test : MongoDB vs MySQL(MongoDB) and MongoDb vs MySql – However, MongoDB is superior and highly scalable for distributed databases and has ready to use package of mango, express, angular, .NoSQL databases are secure and perfect for cloud computing, prototyping and agile projects.


Third-party services apps

Due to a  effect of non-blocking I/O, Node.js manage to handle multiple requests and make multiple requests as a client to a third-party services.

(e.g., Twitter, Amazon) with just one thread of execution.


Web servers

Node.js was created from the ground up for the network applications and there is a set of core modules to write web servers.

To start a Node.js server: $ node .

Note: In Node.js Multi-threading is absolutely possible with clusters and/or external modules.



Node.js works nicely on PaaSs, with Heroku, Nodejitsu, Appfog, nodejitsu leading the list and also the cloud infrastructure company Joyent that developed powerful operation system SmartOS that allows for painless deployment ,performance bursts and DTrace debugging.


Performance Matrix

Node.js is extremely fast due to its non-blocking I/O mechanism and Google Chrome V8 engine technology.


Node.js is platform for building applications. not a web application framework. It’s a It includes a set of tools useful in building web applications (such as modules for writing to the filesystem or making HTTP requests).


Some Important points and advantages of Node.js

Use of node.js

Node.js can be used for the following purposes

a)      Web applications ( especially real-time web apps )

b)      Network applications

c)       Distributed systems

d)      General purpose applications


The advantage of using node.js

a)    It provides an easy platform to build scalable networking programs

b)    Generally fast

c)    Great concurrency

d)    Asynchronous everything

e)    Almost never blocks


The Two types of API functions in Node.js

a)      Asynchronous, non-blocking functions

b)      Synchronous, blocking functions


Control flow function in Node.js

A generic piece of code which debugs/run in between several asynchronous functions calls is control flow function.


“Control Flow” controls the functions calls in Node.js

a)      Control the order of execution

b)      Collect data

c)      Limit concurrency

d)      Call the next step in program


Node.js is single threaded

For async processing, Node.js was created explicitly for more performance and scalability can be achieved by doing async processing on a single thread .


Async in Node.js

By following steps you can async Node.js

a)      First class functions

b)      Function composition

c)       Callback Counters

d)      Event loops


“Non-blocking” in node.js

In node.js “non-blocking” means that its IO is non-blocking.  Node uses “libuv” to handle its IO in a platform-agnostic way, it queues it within the event loop which call the JavaScript ‘callback’ on the main JavaScript thread.


Challenges with Node.js

Emphasizing on the technical point of view, it’s a bit of challenge in Node.js runs one process with only one thread to scale up on multi core server.

We are nodejs programmer and developer team based in stratford London, If you and your company looking for real time web application developed with nodejs and mongodb then we are here to help you.

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Quantum Computers – Key to Transform Future Technology Fri, 09 Jan 2015 10:29:38 +0000 NASA and GOOGLE sign a joint ventures to bring a new era of Advanced Quantum Computing Science with Artificial Intelligence. Quantum computing  focused on developing computer technology based on the principles of quantum physics technique with uses of Artificial Intelligence which guide to solve and help to knowing the nature and behavior of matter on quantum and energy (atomic and subatomic).

Quantum computer`s encoded information in bits and qubits which allows the information to be processed in ways that have no equivalent in traditional basic computing, where as traditional basic computers encode informations into bits, in which bits must have a value of either 0 or 1, a qubit can represent a 0, and 1, or both values simultaneously.

In spring 2013, NASA engineers installed a D-Wave Two™ quantum computer.The Universities Space Research Association (USRA) has also entered into a joint Space Act Agreement with NASA and GOOGLE, Currently USRA is installing a D-Wave Two™ quantum computer in the NASA Advanced Supercomputing (NAS), The system D-Wave is about the size of a garden storage shed is housed inside a cryogenics system within a 10-square-meter shielded room and 512 superconducting flux qubits which is the most powerful conducting in the world and now engineers working on  upgradation it to 2,048 qubits.

The system D-Wave runs on a novel technique which referred as advance adiabatic quantum computing, which helps users to solve and guide about complex discrete combinatorial optimization problems using advance quantum physics technique.

“Quantum computing, at this point in history could either turn out to be the biggest achievement since transistors were invented, or a massive failure”.  The Experiment is at such an early stage now, it’s still impossible to tell.  For that reason, the main advantages and disadvantages depend on how it responds to real time environment and result shakes out.

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Things You Need To Know About Android 5.0 Lollipop. Mon, 29 Dec 2014 14:11:59 +0000 Google I/O 2014 introduced a new version Android 5.0 “Lollipop” is the latest version of the Android mobile operating system. Android L Official updates over-the-air (OTA) on 12,November 2014 .

Android L features a bold, colorful and bright new UI designs, high-performance graphics support that are as good as on a Laptops and desktop computer, and great new features for users and thousands of new APIs for developers. It extends Android mobiles and even further, from smartphones ,tablets and wearables watches to  Android TVs and Automobiles Engineering .

Android Lollipop’s top upgrades include:

Material Design are Attractive, Colorful, shadow shades and UI elements design.

Lock screen notifications features includes view and respond to messages directly from your lock screen which is similar to iOS notification features.

High-performance graphics boost the gaming experiences for gamers, Khronos OpenGL ES 3.1 now provides games and other apps the highest-performance 2D and 3D graphics capabilities for supported devices. Android L also introduces the Android Extension Pack (AEP), a set of OpenGL ES extensions and AEP deliver high-performance graphics across a range of GPUs.

Android Runtime (ART) in Android L is the ART runtime which replaces Dalvik (DVM) as the platform default. ART being introduced experimentally in the Android 4.4 release. The major new features in ART`s includes Ahead-of-time (AOT) compilation, Improved garbage collection (GC), Improved debugging support. Android’s apps are based on Java and app uses Java Native Interface (JNI) to run C/C++ code.

Optimizing Battery Efficiency introduced as most useful features in Lollipop’s as Battery Saver mode this features trimming secondary functions and boost the battery saver feature which increase battery percentage and  device use by up to 90 mins  and another useful features is that the lock screen tells user how long the phone will take to charge while plugged-in to a charger.

Enhanced Security upgrade in Android Las default encryption, increased the level of protection against vulnerabilities, malware, brute-force attacks, secure device-sharing features, and SELinux enforcing mode.

Sharing features allows data more flexible sharing with family and friends which includes multiple users  can access for phones. If you are not near by or forget your phone, you still able to call any of your friends which are saved in your phonebook contact list (or read and reply any of your messages, view and share photos etc.) by logging simply  into another Android phone in which Lollipop version is running.

New Quick Settings features is the most frequently used settings with just two swipes down from the top of the screen. New handy controls on swipe down menu like  hotspot, screen rotation, flashlight, and cast screen controls as similar to iphone notify,  this features includes Easier on/off toggles for Wi-Fi, Bluetooth, and location. Auto and manually adjust your brightness for certain conditions.

Connectivity improves in Android L andbetter internet connection which supports 4G network and more powerful Bluetooth low energy capabilities and connects only if there is a verified internet connection on Wifi, Power-efficient scanning for nearby Bluetooth low energy (“BLE”) devices like wearables smart watches or beacons.

Media includes better Audio /Video features which improved the  Graphics Bolder and improved audio, video, and camera capabilities with HDR functionalities to improve images qualities . Lower latency audio input improves the mp3 sound which provide an amazing realtime experience.

OK Google iseasy access to information and performing tasks,Even if screen is off, you can say “OK Google” on devices with digital signal processing support such as Nexus Series. Talk to Google to get instant answers, send a text, get directions and more.

Accessibility featuresenhanced low vision and color blind capabilities, Boost text contrast or invert colors to improve legibility, Adjust display to improve color differentiation.

Now in 68+ languages 15 new additions Basque, Bengali, Burmese, Chinese (Hong Kong), Galician, Icelandic, Kannada, Kyrgyz, Macedonian, Malayalam, Marathi, Nepali, Sinhala, Tamil, Telugu.

Faster OS Updates features will distribute critical updates over the air (OTA) through the Google Play Store and through Google Play Services.

Android L is officially launched as 5.0 version and running to all the devices around the world.  According to users feedback  it is slow but it is steady and reports say that Google is already planning to introduce  Android 5.1 within a few weeks. Different lollipop user already lodged their issues just after the update and google now is fixing them all.

Bugs and Issues related to current officially running Android L version which might be resolved in the next update which are:

-Missing Silent mode rectified

-Stability improvements

-Efficient Ram management

-Fixed Sudden closure of apps

-Longer battery life

-Excessive network device consumption on Wi-Fi

-Wireless connections issue resolved

-Okay Google errors resolved

-Notifications problem resolved

-Problems with sounds fixed

-Many other Improvements

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Google’s amazing driverless cars Tue, 11 Nov 2014 07:34:24 +0000 Driving was considered as un-automatable task by the technologies a decade ago. But over the past few years the tremendous change in the technology has been observed in autonomous vehicles. As a result of extraordinary level of improvement, plenty of sceptics are attracted by driverless cars. These driverless cars are the result of Google’s director Chris Urmon belief, he claims that the driverless cars might be better drivers than many of the humans behind the wheel and in case of any accidental issue, they are more defensive and more courteous drivers than normal drivers we have. This is tremendously mentioned by Urmon this is car of imagination where we can get in our cars which take us wherever we want and we get out, without worrying about parking.

The driverless car is embedded with several concepts. The control of accelerating, indicating, automatic braking, anti-lane drift, cruise control, and self-parking functions in driverless cars gives a certain degree of autonomy. Unlike the skies, for the crowded roads, drunk and distracted driving, fully self- driving vehicles are designed for autonomous work without any human intervention. It is very crucial step in advancement of transforming mobility of people.

The vast barrier to increasing use of driverless vehicles, is the technological change which have been observed is availability of cheap labor and wiping out of many middle-skill jobs due to which many workers are tend to do work of low wage. The have long list of merits on the other hand like sensors that help in removing blind spots, detection of objects from a large distance. There are not much creature comforts but two seats are there, a start and stop button, some space for keeping belongings. Small pilot program are also going on in California.

Talking about speed, Google’s self-driving cars are programmed to exceed speed limits by up to 10mph.They have been testing on US roads from 2015, UK from 2015 where it has been announced by the government that people are allowed to drive driverless cars from January. This will include the requirement for self-drive vehicles to come with safety and traffic laws, and include changes to the Highway Code, which is applicable to Wales and England. There is not any paln to change speed limits of cars. Radio signals which are emitted by the vehicles help and alert drivers to potential accidents.

People should focus more on the changing and challenging nature of the policy which economies are beginning to face.There should be a need of millions of people to function as a meatware as the link between the earning of an income and work is not sufficient for living. There is a possibility of a world in which a rather large share of the population works as drivers, simply because human labour has gotten too cheap to automate out of the job.

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Shellshock : Software Bugs- Deadly attacks on Web Mon, 20 Oct 2014 12:54:34 +0000 Shellshock is one of the most recently discovered set from family of Security Bugs, that is indeed termed as one of the most widely used security bug from the UNIX BASH SHELL. The Other version and name for shellshock is known as BASHDOOR and it was first discovered on 24th September 2014. The most specific and worst condition of this bug is allowing the attacker to gain access of a computer system remotely, as a result since the numerous internet facing services including Web Server Deployments are using this bash processing certain requests therefore this is the reason that allows the attacker causing vulnerable versions of Bash executing several arbitrary commands to gain access of a system completely.

The bug was recently discovered by Stephane Chazelas who immediately suggested the name for the bug as BASHDOOR. This has also been identified as per the analysis of the source code history of bash there were many vulnerabilities that were even in existence since the version 1.03 of the Bash that was released in earlier days of September 1989. First bug that caused numerous commands executing unintentionally as with these concatenated commands executing to the end of Function Definitions that are saved in the values of Environment Variables

What is this BASH and Why It is Needed?

This might be one of the most anticipated questions among the users, that why do we need Bash and what is it used for:

  • It is a *Nix Shell or we can say that it is an interpreter that allow a user to arrange commands for linux and unix systems connecting via telnet or SSH.
  • The Bash operates as a CGI Parser Script for Web Server That we can typically see running generally on Apache server.
  • During its inception it has been there existing since late 80s era and it got evolved from earlier shell implementations
  • Also Known as Bourne Shell that is a interceptor and a term taken from the name itself

How our things are affected with Shellshock?

Basically the biggest factor that is causing more trouble is that we have already a lot of things that is running Bash which is the most interesting thing as when we refer “things” here it means the Internet of things that is increasing prevalence for setting an IP Address and a wireless adaptor into almost all the things from security essentials to light globes and door locks etc.

The Shellshock Essential:

Basically a Shellshock could potentially be used to disable and halt several unpatched servers, including numerous systems therefore it is most compared these days to HEARTBLEED bug. Apple Inc. also has commented regarding the safety of their systems Until a User configure and enhance the unix services.

Brief Background for Shellshock:

As you know now that the Shellshock vulnerabilities affect Bash that is an essential program executioner including command lines and command scripts and also installed as a system’s default CLI or command line interface.

The most primary aspect as we can know regarding the bash is that it acts as both a Command Interpreter and also act as a self command as well, therefore it is possible to execute Bash from itself. Therefore when this terminology happens then the original instance can easily export environment variables and function definitions in an another instance.

The Conclusion:

So as for the conclusion the shellshock has affected and is one of the most recent security bug that came into existence due to various interactions and enhancements to the bash. The Attackers Exploited the Shellshock even within hours of its initial disclosures, since they created botnets on several conciliated systems performing a Distributed DOS attacks including vulnerability scanning.

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Are You All Set to Explore MS Windows 10? Tue, 14 Oct 2014 10:14:39 +0000 MS Windows is one of the most user-friendly and highly preferred operating system by every age group. From the decades, people are enjoying working on its distinct versions i.e. right from the Windows 98 to windows 8.

As per the market updates, Microsoft is all set to launch it’s the latest operating system Windows 10. Indeed every PC expert and IT pro is having adrenal rush to explore this launch.

This time Microsoft is planning to introduce this new operating system with an unexpected and unusual launch strategy.

MS Windows 10 Technical Preview

Microsoft has introduced a new platform for all those PC experts who are excited to experience the Windows 10 OS before its actual launch. Windows 10 Technical Preview is recently, launched by Microsoft.

All the interested aspirants can join and download this Technical preview and grab the latest updated about Windows 10 features. Microsoft has announced that this Technical Preview will be the first platform where all the updates will be published. Hence, technocrats who have joined this platform will be able to get all the information before anybody else will have.

There are certain pre and post installation guidelines provided for Windows 10 Technical Preview.

How it helps you?

This time with Windows 10, Microsoft intends to launch an operating system which fits into the sleeves of its users. This Technical preview will involve the PC users directly into the making of this OS and provide them a feedback application.

This feedback app will allow them to submit their instant feedback for various apps available in the Technical Preview. Microsoft will certainly consider these feedbacks and modify the feature after thorough analysis on logical and technical grounds.

Features in Windows 10 Technical Preview

As soon as you successfully download and install the Windows 10 Technical Preview, you will explore some of the latest windows features as mentioned below:

  1. Brand New Start Option: Start Menu is back in Windows 10. This time, it is clubbed with the Start screen (same as available in Windows 8). User will also be able to personalize the start screen as per the requirement and this can be done by simple drag and drop.
  2. Power Button: This time, power is in the start menu. User can easily access to the power options in their Start menu itself without randomizing in other sections of the OS interface.
  3. Multiple Desktop Support: Windows 10 Technical Preview supports the multiple desktop options.
  4. Multitasking: In Windows 10, user will get faster and better multitasking options along with simple touch screen options too.
  5. Faster and Broader Search: Same as Windows 8, Windows 10 will provide a faster and broader search feature. User will be able to custom search anywhere in the system and web with a single click.
  6. Feedback app: User will be able to submit their feedback for any preferred application of the OS.

Basic System Requirement

All those systems which can run Windows 8.1 and above can easily support Windows 10 Technical Preview. Below mentioned are the basic system requirements for the same:

  • Processor: 1 GHz or faster
  • RAM: 1 GB (32 bit) or 2 GB (64 bit)
  • Free Hard Drive: 16 GB
  • Graphic Card: Microsoft DirectX 9 graphics device with WDDM driver
  • Microsoft Account and
  • A good Internet Connection


Windows 10 Technical Preview is an innovation in the field of OS development. This is the first time when customers can equally participate in the making of an Operating system. Their feedbacks will be worth posting and they will be able to experience the making of every feature in just few updates.

In the brief, Microsoft has turned the table round for all the PC experts and IT pro by equally involving them in this creation and launch.

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Kali Linux- A leading name in the field of penetration testing Tue, 30 Sep 2014 07:03:20 +0000 Penetration Testing Brief:-

In the system development life cycle of a project, testing plays the most vital role. This phase explicates whether the development efforts are fruitful or they are appealing for some revamping in the code?

While testing an app, testers sometimes neglect certain scenarios which later emerge as a big blunder in the process, especially if the project involves the sharing of confidential data or financial transactions.

Online hacking is a very common threat residing in almost every individual using online payments and transaction services. Digital data are actually prone to the hacking, if it is not properly guarded by the testers and developers. Penetration testing is the solution to all these apprehensions. This is also known as ethical hacking, which helps in determining the loopholes in the security of a web application/tool.

About Kali Linux and BackTrack

Kali Linux is the reformation of the Backtrack Linux, which was a Linux distribution with the focus on digital forensic and penetration testing.

In March 2013, Back Track was rebuilt; adhering to all the standards of the Debian development and it was christened as Kali Linux. While re-constructing the Back Track all its packages were reevaluated and only necessary and useful tools were kept and all unnecessary stuffs were eliminated.

Most of the penetration testers are still in the perplexity that what makes Kali Linux different from BackTrack? Technically, this is indeed a very tough question to be answered. But, below mentioned advantages cum differences will be helpful to distinguish the two from each other:

  1. Elimination of unnecessary tools:   Kali possesses most of the BackTrack tools in its packages, but, many of the redundant tools are eliminated in the contemporary version.
  1. Available Free of Cost: Kali Linux is a free technology that helps the testers to do ethical hacking and safeguard the applications. It is announced that this technology will always be available for free of cost, however; few tools which fall under the Debian standards might have some paid schemes associated with them.
  1. Easy and Direct Access to Git Repositories: Kali Linux provides the direct access of its Git repositories to the testers; they are open to customize their own Kali for rebuilding their packages.
  2. Following FHS: Kali provides the access of all the File Hierarchy System as well as it adheres to all of the FH standards.
  1. Excessive support of the wireless devices: Kali is built in a manner that it can support “N” number of wireless devices at a time without any hassles.
  1. Involvement of the Latest Injection patches: Because of the need to access the wireless assessment frequently during the penetration testing, the latest injection patches are included in the kernel of the Kali Linux.
  1. Highly Secure: It is built with some highly secure protocols which allow the testers to interact with the repositories directly avoiding any sort of leakage in the testing scope.
  1. Authentic: All the repositories and packages involved in the Kali Linux are highly authorized and credible.
  1. Multi-Lingual Support: Kali provides multi-lingual support to its users and allow them to search the preferred tool using their native language.
  1. Customizable: Users can easily customize the Kali as per the requirement and that’s also up to the kernel.
  1. Kali’s ARM device support: Kali genuinely, support all the ARM devices.


Categories catered by Kali Linux:

Following are the categories catered by Kali Linux and its tools:

  • Information Gathering
  • Maintenance
  • Stress Testing
  • Forensic
  • Reporting Tools
  • Services, etc.

In a very short span of time, this technology has enhanced its roots in the penetration testing industry. For all the testers it is an advantage one must grab. In short, this technology, and it’s all the latest tools and packages have given a new shape to the ethical hacking.

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Swift- An innovative Programming Language for iOS and OS X Fri, 26 Sep 2014 08:12:43 +0000 Swift Overview:

iOS and OS X have become one of the most demanding technologies of this era. This has resulted in the immense discoveries of the supporting programming languages for these technologies.

Swift is one the ground-breaking programming languages, recently announced and created by the efficient team of Apple for the OS X and iOS development. It is designed mainly, to support and work with the Cocoa and Cocoa Touch frameworks of Apple.

Swift is developed using LLVM compiler along with the runtime Objective-C Code.

The best part of this programming language is its user friendly behavior due to which, programmers enjoy working with this language. This is compatible with all the imminent updates in the apple platform as well as in the apps installed in the gadgets.

While developing an iOS based app, the first concern that every developer has in their mind is to build the scalable app. Swift is meant to resolve this issue as its concise and interactive code results in the lightening fast application.

Why Swift is better than others?

Being a new arrival in the industry, this is still a mystery to most of the developers. Here, are some quick credentials about Swift programming language that make it different from others:

  • Change in the Variable Declaration: Unlike Objective C, developers will be free from the variable declaration. Now, there is no need to mention the type of variables in the code itself like string, floating point numbers, etc. This role will be played by the compiler automatically.
  • Easy Integration: This programming language can be easily integrated with other languages like Objective-C and C as the compiler used in all the three languages is same.
  • Suitable for Oldies: Developers who are still in the favor of older technology like Objective-C will also love working with Swift as there are lots of features which have the glimpses of Objective C like Basic numeric Types, Most C operators, Use of braces, Use of Control statements, Class methods, etc.
  • Lighter Language: As compared to Objective-C, Swift has lighter use of syntax which makes it comfortable for developer to develop a quality code and further, deliverables.
  • Befitted for the Naïve Developers: In case, you are a newbie in the iOS development and not that friendly with other programming languages, take a sigh of relief because, Swift coding is quite easy to comprehend and handle.

Hence, if you have the basic knowledge of logics and C Programming language Syntax, it will be easier for you to code with the Swift language and you can build your very first iOS application with it.

  • From the customer’s end: Swift is that efficient in customization and getting integrated with other programming languages that the overall product after its launch will never let the customers realize how and what exactly was integrated into the app code.
  • Elimination/Modification of some disturbing elements: A. Swift has very efficiently eliminated or updated the use of some disturbing elements like Pointers. They will no more be exposed in the Swift and programmers won’t be bothered to keep the track of all of them during coding.  B. Use of break statement in the Switch Block does not exist in swift. C. Overflows, which usually cause run time error in C are allowed in swift along with the arithmetic operators like &+, &-, &*, &/.



In conclusion to the above mentioned, the launch of Swift programming language has simply turned round the table for all the Apple developers. It has filled the apple developer’s community with a new zeal and has provided them an innovative tool that will certainly embellish their code and provide them an option to develop an out of the box application for their customers.

For all the developers: Swift programming language is worth experiencing!

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ART : Strong surrogate of Dalvik Mon, 08 Sep 2014 12:36:08 +0000 Google announced its new runtime on Android, ART, a strong replacement and successor for Dalvik. It is basically a virtual machine required for execution of Java code with the main purpose to improve performance of stock apps, third-party apps and core Android platform with improved battery life and other core metrics. Thus, Google has more advance JIT caching system now and it is declared that future android versions will use ART so developers should aware of it and make sure their code run very well with art. The applications having interaction with system’s core have differences in their performance when working with ART and Dalvik.

Dalvik and ART both  are the different runtimes executing instructions of applications inside Android where way of compilation and execution is different.  Dalvik is primarily a Just-in-Time (JIT) runtime that executes code only when application is running, ART which was firstly introduced in Android 4.4 KitKat uses an Ahead-of-Time (AOT)  compiler runtime that executes code before it is needed actually when the application is installed.

When talking about execution time and battery life both have incredible speed up. And other important metrics have improved significantly. The implications to  life of battery are significant since  during the runtime of an app there is no more JIT-work to be done. CPU cycles and power consumption is thus saved.

The performance and responsiveness is also improved through better garbage collection of ART and improved developer pages. The performance improvements can be shown easily from below graph:

ART : Strong surrogate of Dalvik


The significant performance gain over Dalvik exists as speed for code is improved two times running on VM.  ART vitual mahine is more than three times as fast as the same code running on the Dalvik. If a test iteration, running synchronously on its own thread on Dalvik,  takes about 1400 milliseconds to complete, the same test takes only about 400 milliseconds on ART. ART also used 2 MB less storage space.

ART improves the efficiency by making use of an entirely new memory allocator called Rosalloc which is runs of slots allocator which interferes with the garbage collector and other memory operations. Without locking, smaller objects which are common in Java are allocated in a thread-local region. Thus it doesn’t have to wait until the garbage collector frees an unrelated area of memory, when their is attempt by the application to allocate memory for a new object.

ART is completely compatible with “dex”, Dalvik’s executable byte-code format. And also, ART compiles an ELF executable. So, better memory management and less memory usage  is possible and kernel is now able to do page handling of code pages. CPU usage in ART is less than Dalvik who has to convert portable bytecode into executable code for the specific CPU in the phone every time when app launches. ART converts all the Apps bytecode into executable code for the specific CPU in the phone only once. Less CPU usage results in less battery drain, which is a big plus for portable devices today.

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Nexus 6: Prime release date, news and rumors Thu, 04 Sep 2014 17:05:53 +0000 The Motorola “Shamu” having  5.9-inch screen, a fingerprint sensor is reported to be new Nexus smartphone after iphone 6 and is supposed to be next Android smartphone from Google. Nexus X has been rumoured with its features, performance and price. According to the techsites, this new Nexus smartphone is Nexus 6 but it can be named as Nexus X or Nexus 5 by Google. Earlier, Nexus was rumoured to be manufactured by LG but after statement of LG global communications director Ken Hong, rumor  was spurred and lately  in  July,it is reported by Android Police that a Nexus 6  will come from Motorola and it is in work .

Nexus 6: Prime Release date and price

It has been a trend of big tech firms to launch a smartphone each year, same is the thing with Google’s Nexus range. The  senior vice president, Sundar Pichai stated that Nexus X (Nexus 6) would not launch in the first half of 2014. But we can expect to see the smartphone in  October or November of this year. New Android Silver line was earlier suspected to be discontinued but later it was declared as an encouragement to manufacturers to use bulid materials of higher quality keeping an eye on style specifications of Google. It has been heared that the Nexus X (Nexus 6) will be launching this year around the same time as  Nexus 5 was hitting stores in November of 2013. Talking about price, the Nexus X is estimated to cost around 419 Euro.

Nexus 6: Operating system

Google has always come up with some hardware along with its new version.The Nexus 6 could be dubbed forthcoming Android (aka Lollipop) or Android 4.5 and can be the first device to run the next version of Google’s operating system. Nexux 6 will be ushered with the next instalment of Android KitKat which was there in Nexus 5. According to the latest information from TK Tech News, the Nexus X will become running Android 5 Lemon Meringue Pie instead of Lollipop.

Nexus 6: Specs

Android Police says Motorola can be a possible partner for the Nexus X (Nexus 6), despite being sold to Lenovo and it will have a phablet sized 5.9 inches  screen and will arrive in November.

According to IBT reports  the Nexus X to bring it into line with the iPhone 5S and Samsung Galaxy S5 will have the specs like   5.5 inches QHD display,  1440×2560 resolution, Octa-core 64-bit processor,  Fingerprint scanner, IP67-certified dust-proof and water-resistant device. The specs are rumoured, but the specification is for sure that Google will maintain its standard  and a Nexus device with all above features would be impressive with a low price.


Nexus 6: Performance

According to the reports of benchmarks by  GFXBench,  the Motorola Shamu or Nexus 6 scored 11.5fps, just slightly below the Samsung Galaxy S5 and HTC One M8, but it is claimed to be faster than the Sony Xperia Z2 and LG G3.

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