Wednesday, April 25, 2012

Understanding Cloud Computing - 2

Remember the analogy I presented to you in my last post in the series? About the cloud being akin to a giant computer. We also talked about the 3 layers of this computer. What was interesting was the fact that each of them had the "as a Service" suffix. What does this mean and what are its implications. 

Extending out giant computer analogy a little further, it is certain that such a giant computer is not for any individual or institution's use alone. Rather it is a computer that can be used by everybody who has a need for the same. Theoretically, the computer is so huge that every body could make use of it at different points of time or at the same time. While somebody might be needing just a few GB of hard disk space on this computer and some processing power, another team might be thinking of requesting several TB of space and lots of RAM and some specific applications. As each and every individual/team requests these units from the computer, these are allocated almost in real time to these individuals. Once they are done using the computer for their use, they relinquish the requested resource units that get added to the main pool for somebody else to take advantage of them. Hence the giant computer's resources are available on demand as a service. Just like how a taxi is available as a service for you when you need to get from one point to another or your when your own car has broken down. 

All three layers of the cloud, the infrastructure layer, the platform layer and the software layer are available as a service for its consumers. Hence  the suffix "as a service".

In our next post in this series, lets look at the Infrastructure layer in detail and understand its intricacies

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Tuesday, April 17, 2012

IT Quiz - Edition 5 - Answers


  1. What is the name of the photo application that Facebook paid $1 billion in cash and stock to purchase? //Instagram
  2. What is the name of the company that has partnered with BSNL to bring out a Rs. 3499 tablet? //Pantel
  3. What is the name of the new IT services company that Ashok Soota, founder of MindTree earlier on, launched earlier this year? //Happiest Minds
  4. What technology innovation comes to your mind when  you see the following images? //Android OS. These are the logos of the Android versions 
  1. DreamScreen is a popular desktop PC model in India. Which company is it from? HP

 The closest attempt came from Bharatesh !! Great work :-)

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Understanding Cloud Computing - 1

A lot of my readers ask me fundamental questions on cloud. This series of posts are dedicated to all my fans and readers who would like cloud computing to be simplified for them.


Let's start with a pictorial analogy of cloud computing to something that we are more familiar with. Consider a server or even your desktop computer or a laptop. A scratch at the surface to see what makes these computing devices tick reveals 3 distinct layers.

  1. The hardware consisting of the motherboard, the memory (RAM, hard disks), the processor, etc
  2. The operating system that loads when you first switch on your computer - Windows, Linux, Unix, etc
  3. The software applications that you use when using your computer - Notepad, Word, Paint Brush, Winamp, Internet Explorer, etc
A cloud in simple terms is your computer multiplied sever hundred thousand times and can go beyond theoretically to infinity. More on this characteristic in my next post.

Coming back to the analogy, imagine the cloud to be one giant computer. Obviously you would need the equivalent of the 3 layers here too, right?
  1. Infrastructure - IaaS (Infrastructure as a Service) - The hardware layer equivalent
  2. Platform - PaaS (Platform as a Service) - The Operating system equivalent with more bells and whistles. Lets understand that in a separate post
  3. Software - SaaS (Software as a Service) -The software applications you would use to draw on the power of the giant cloud computer.
You might have noticed that all three had the terms "as a Service" attached to them. Let's explore that in our next post in this series.

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Thursday, April 12, 2012

IT Quiz - Edition 5


  1. What is the name of the photo application that Facebook paid $1 billion in cash and stock to purchase?
  2. What is the name of the company that has partnered with BSNL to bring out a Rs. 3499 tablet?
  3. What is the name of the new IT services company that Ashok Soota, founder of MindTree earlier on, launched earlier this year?
  4. What technology innovation comes to your mind when  you see the following images?
  5. DreamScreen is a popular desktop PC model in India. Which company is it from?

 Answers will be published on Monday!! Happy answer hunting :-)

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Tuesday, April 10, 2012

Top 5 MS Power Point Tips

A lot of my blog readers ask me to blog on tips that could enhance their computer productivity. Here's a first of a series of posts dedicated to all my readers

Power point has become so common a tool that every Windows user clicks on MS Power point icon when asked to research, create a presentation, draw a flowchart or even just take notes.

However, there is so much of power under the hood that hardly gets utilized. So here are the top 5 power point tips to upgrade your power point experience

1. Stop Ctrl+C (Copy) and Ctrl+V (Paste). Select an object and do a Ctrl+D (Duplicate). Not only are you reducing the number of key presses, the Duplicate shortcut also aligns every newly duplicated object to create a pattern of equidistant objects

2. Pasted a image and it has an irritating white background?. Relax. You can clear the white background by double-clicking on the image, go to Colors on the menu bar, select "Set Transparent Color" and click anywhere on the white background of the image

3. Do you have a table that does not fit into a single slide? Do not fret. You can divide the table across two slides and use a cool slide transition to let the audience know that the table is continuing over two slides. Select the first slide and Go to Transitions on the menu bar and select "Push" as the transition.

4. Need to fit the letters of a word onto a curve? Type your word. Select the text box. Go to Format on the menu bar. Select Text Effects --> Transform --> Follow Path and the needed layout.

5. You are projecting your slides and you suddenly need the audience to stop looking at the slides and focus on you the speaker. You can press "B" or "W" on the keyboard to produce a Black or White background respectively. This works only in Presentation mode.

So there you go. You should return to your workstation feeling a lot more energised :-)
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