Archive for June 2013

Hide the Last Seen Notification in WhatsApp

WhatsApp the most used smartphone app for texting and chatting has some features like "Last Seen Time". This basically tells the other users that you have checked their messages.
Unfortunately WhatsApp doesn’t allow options for Invisible or Offline like some other messaging services. This can be problematic for users who want to stay anonymous or for those who don’t what to chat with some people.

Download Now. Unfortunately, it’s not yet up on play store.

How to Use
  1. Download and install the Not Last Seen app from here (root not required).
  2. Open the app and enable ‘Block Last Seen!’
  3. Open the WhatsApp, now you will see the data connection went off automatically as soon as you open WhatsApp.
  4. Read and send the messages, then close the WhatsApp screen.
  5. Once you’re out of the WhatsApp screen, the data connection will enable automatically and will send the composed messages.

Similarly Facebook has "Seen" Notification on Facebook, if you have read the messages.

Note: No rooting required. Just download and install.
Tuesday, June 18, 2013

Cloud Computing: Everything you need to know

Cloud Computing is the idea of computing as a utility. It is a technology that uses the internet and central remote servers to maintain data and applications. Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access.

Cloud computing removes the need to purchase physical servers by providing these services over the web. Just need to create an account on Amazon Web Services and set up a virtual server (EC2) and data storage (S3) all your system via the internet. Pricing is usage-based, meaning that you pay for exactly the amount of computing power and data storage you use.

Companies that provide cloud computing services (Amazon, Microsoft, Google) purchase server farms themselves and then make money by charging users for access via the internet for computing power and data storage on their servers. This is a significant innovation because it's exponentially cheaper and more efficient for anyone to run a web application.

Cloud Computing is actually an umbrella term for three service models:
IAAS – Infrastructure as a Service
Provision of servers or virtual servers that companies can use on a pay-as-you-go basis.  An example of this is Amazon s Elastic Compute Cloud (EC2). 

PAAS – Platform as a Service
Includes a set of lower level services such as an operating system or computer language interpreter offered by a cloud provider on which developers can build custom applications. A few examples include OpenShift (Redhat), Cloud Foundry (VM Ware), Google App Engine.

SAAS – Software as a Service
Software that you access simply by navigating there in a web browser.  Facebook, Twitter, Gmail, Google Docs are all examples of Saas.  People have been using Saas for a long time.

Why it matters?

In a nutshell, cloud computing is accessing business data on the fly anywhere with internet access, we already do that with our gmail or yahoo, just like that but with business app. Imagine the dynamic nature of this feature, only drawback "socially" is jobs, few large data center can manage a lot, and hardware consolidation will also be the key.
Wednesday, June 12, 2013


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