Above the Clouds: A Berkeley View of Cloud Computing : A SUMMARY


Conventionally cloud can be referred as Service over Internet and hardware, but now the term cloud computing is referred for Software as a service. Cloud is now the demand for all tech giants due to some of the benefits like: decrease in cost of electricity, network bandwidth, operations, hardware availability at very large economic scale. We can make a lot of money, leverage existing investment, define a franchise, become a platform and attack a business incubation, by adapting the cloud computing. Cloud services were not user earlier, it is due to the reliability scale which was not prominent. But now cloud efficiently provides new tech trends and business models included as cloud platform. Cloud these days provide new application opportunities, mobile interactive application and parallel batch processing , which has been the reason for catching the huge mass of cloud service consumers. 


Cloud computing strongly follows the ‘pay-as-you-go’ principle, which enables the feature elasticity providing its vendors the usage based pricing. Cloud vendors provide Virtualized resources as computation models or Virtual Machine, Storage model and Networking model. Cloud is more economic to rely on then other existing alternatives. Cloud computing application is focused on three models: Model of Computation, Storage and Communication. Software Licensing as an alternative cloud provides Pay-for-use Licensing. Conventional alternatives has limited storage but cloud provides invent storage Data-Lock In was the main issue in conventional alternatives whereas cloud provides many standardize APIs for maintaining and manipulating our data. Earlier there were no availability of services to host or run our system, but now cloud providers provide business continuity. Even cloud uses Elasticity to defend against the DDoS attacks. Cloud has improved virtual machine support: Flash memory gang scheduling Virtual Machines. Earlier bugs in Large-Scale Distributed Systems were a major issue, bug in a single hub used to damage the whole system but cloud provides invent debugger that relies on distributed virtual machines which solves the bugs without hampering the system. 


From the cloud provider’s view, the construction of very large data centers at low cost sites using commodity computing, storage and networking uncovers the possibility of selling those resources on a pay-as-you-go model below the costs of many medium sized data centers, while making a profit by statistically multiplexing among a large software startup to build its own data centre as it would for a hardware startup to build its own fabrication line. Cloud specifically focuses on following concerns:
  • Application Software of the future will likely have a piece that runs on clients and a piece that runs in the cloud. The cloud piece needs to both scale down rapidly as well as scale up, which is a new requirement for software systems.
  • Infrastructure Software of the future needs to be cognizant that it is no longer running on bare metal but on virtual machines.
  • Moreover, it needs to have billing system built in from the beginning, as it is very difficult to retrofit an accounting system. 
  • Hardware Systems of the future needs to be designed at the scale of a container (at least a dozen racks ) rather than single rack.

Note: This Article is an exact copy from my Summary Paper which I wrote on Researchgate, a year ago. It was a part of Assignment of my Elective Course Cloud Computing. I thought sharing is good.

Graphene Super Capacitor : Future of dash charging

Today’s technology has push the mobile devices far beyond than its limit. We can possibly imagine how smart phones has made our life comfortable and straightforward. With the ratio of developing smart phones their batteries hasn’t been able to be in the point where they should be. Of course there are dash charging but still they are time consuming and not completely developed as they need to be. And still we are adopting the traditional way of charging, using lithium ion and lithium polymer batteries. 

The concept of Graphene Super Capacitor might be the history changer for tomorrow’s world of fast charging. A battery, high energy storage charges slowly and discharges slowly this ability is energy density. Similarly, capacitor , a low energy storage charges rapidly and discharges rapidly which is the power density. Combining the best of both will lead to fast charging and slow discharging. Super capacitors lies between the concept of this two energy storage methods. 

Eesha Khare, a graduate from Lynbrook High School California developed a super capacitor prototype that charges very rapidly and would last longer for more charging cycles. And was runner up at Intel International Science and engineering Fair (2013) bringing out this prototype. Its still prototype in the current state but proved to be work.

Her prototype could be fully charged within time interval of 20-30 seconds and hold the charge for longer like on other similar devices. It lasts for 10,000 cycles compared to batteries in current world 1000 cycles. Much greater achievement in field of energy storage.

Nano scale and mass scale fabrication hasn’t been practically possible on today’s world. Gradually, scaling up this prototype will lead to powering phones and electric cars. Like increasing the technology the maH of batteries will also certainly increase in the future. 

Imagine plugging your phone in, charging it for about 20 second and of that charge it will work one day or more.



Human brain is a box full of mystery. You never know what new idea may explode at your course of time . And what if that your idea turned out to be so intelligent that can often act and react like human. I am quiet sure reading these line one thing struck on your mind “robot”. Robot is a machine built to carry out some complex task or group of tasks which are programmed. It is one of that example of hard work and dedication of computer scientist since that era of time. And the concept of AI has brought their dream come true. Artificial intelligence has been arguably the most exciting field for robotics. Though its certainly the most controversial that a robot can work in an assembly line . But there's no consensus on whether a robot can ever be that intelligent as that of human brain. Indeed its an challenge for AI world that a man made machine with intellectual abilities as like ours. 

Today I am going to share about a creepy robot that’s fascinating today's world “COZMO”. Cozmo is an artificially intelligent toy truck which also shows the scope and future of AI and robotics. It is an artificially intelligent toy robot unveiled by San Francisco startup Anki- and Tappeiner. Cozmo is software driven that can be connected from device to device through Bluetooth. There’s no data in cloud so Cozmo is secure. It comes with three interactive power cubes, which the robot can recognize and with that you can play game such as quick tap, keep away or just free play. Cozmo is born to be playful; it is charming, mischievous, and unpredictable. It recognizes and remembers you, interacts with you, plays games and gets to know you over time. It combines the best of animation – humor, personality, and emotional connection with robots. 

Powered by advanced robotics, AI, and computer vision it has a brain that processes millions of data per second . It uses technologies such as computer vision, animatronics, motors and AI software. It has three ARM - based microprocessors running on android and iOS. 

Cozmo’s eyes changes color from blue to green when its mood changes. It can yawn, sneeze violently or shiver. The final design is made from 340 parts and it has four motors, a camera and a OLED display. When Cozmo is put on a charger, it goes to sleep and snores.

In this challenging world for AI this robot which can wake up, blink its eye, crawls has given life to the concept of John McCarthy. 

Refrence: venturebeat

A Day's power in half an hour: One plus 3T

Like it's said 'Life is a race.If you don' run fast you'll get trampled'. And here we are talking about the most important part of a human life 'A cell phone'. We all have studied that cell is the basic unit of our life,so is our cell phones😼.
Like we are dependent on our cell phones, our cell phones are dependent on their batteries. What if we run fast in our life but our phone doesn't? What if we have to make an important call and your phone shows a low battery? What if you want to capture the best moment of your life and damn battery is low again? I mean who wants that? We expect our phone to work at least for a day without charging. We all are living in a busy life and we have no separate time to let our phone charge for hours. Big Problem, right??

And here keeping these all things in mind One plus have created a sibling phone named as OnePlus 3T. As the name suggests, this device is essentially a souped up or 'Turbo' version of Oneplus that builds on everything we loved about the first while giving it a slightly more competitive edge against the competition.
Oneplus 3T comes with Dash charge. Dash charge is faster, safer, cooler and simply better than any other charging technology available today. Unlike other technologies, charging remain consistent even while gaming, live-streaming or demanding activities. The 3400mAh battery features a 13% increase in capacity over the Oneplus 3 which gives the solution to all the battery problem we face in our busy life. It take just half an hour to charge which will last all day long.

Not only the charger and battery life OnePlus 3T has Qualcomn Snapdragon 821(2.5GHz) which runs the most demanding apps and games with enhanced performance. 6 GB of RAM can juggle countless task without slowing down and internal storage of up to 128GB means running out of space is a thing of the past. And the camera of this phone offers 16 MP front and rear camera which gives you the crisp and sharp shots because of the cutting-edge noise reduction and improved stabilization technologies. Lightening fast shutter speed, snappy auto focus and intelligent software combine to create unmatched smartphone camera experience.

As far as the design is concerned, the OnePlus 3T looks exactly like its older sibling, and features the same full metal uni body construction, with a slightly curved back and rounded sides and corners. Despite being made entirely of metal, the phone is surprisingly light, and because the back tapers along the edges, it feels thinner as well, making for a device that is very comfortable to hold.

With a 5.5 inch with AMOLED display with 1080p resolution we get rich and vibrant colors with lot of contrast, and the optical dark mode that is built-in to Oxygen OS taking fantastic advantage of deep inky blacks. If you are not fan of vibrancy though, it is also easy to switch to sRGB color mode display setting that provides a more natural and less saturated look.

" PLAY MORE, DO MORE,STORE MORE" this awesome featured gadget costs $439 in today's date. So, if your looking for a phone with dash charge, camera that allows you to click in every angle with 1080p resolution then do invest it on OnePlus 3T.


TECHCAST S01E01 With Feature Story Of Mahabir Pun | Episode 1

After a week of awesome experience, exploring new technology and concept TechJhola announces its first episode of TECHCAST. Techcast is a podcast recorder in Nepali Language for Nepali Audience. We did this in order to share the ideas, information and Information Technology News that is happening here at Nepal and all over the Globe.
We have featured the story of Tech Pioneer Mahabir Pun on Episode 1.

You can listen to our podcast from Youtube and Soundcloud. Here are the links:
  1. TECHCAST on Youtube
  2. TECHCAST on SoudnCloud
We will soon come with our second episode of PODCAST. Please provide your valuable feedback regarding the content, audio mixing, voice. We are new to this project and your feedback will help us to improve our mistakes. 

To know about how we started, our objective and more about our PODCAST click here [TECHCAST]

Samsung Galaxy C9 Pro in Nepal know more detailed specifications.

Samsung Galaxy C9 Pro in Nepal know more detailed specifications.

Samsung Galaxy C9 Pro smartphone was launched in October 2016. Samsung has started taking pre-orders for their upcoming smartphone -Samsung Galaxy C9 Pro in Nepal. The expected price in Nepal is Rs. 60,000 and it can be pre-ordered from any Certified Samsung Stores for mobile phones.

Specifications descriptions.
Display and Configuration
The Samsung Galaxy C9 Pro comes with The phone comes with a 6.00-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels with pixel density of 367 ppi. The capacitive touchscreen responds well to multi touch as well.

This Smartphone is powered by pair of quad-core processors, Cortex A72 and Cortex A53 respectively. With Qualcomm Snapdragon 653 MSM8976 Pro chipset and 6GB RAM enables the pair of processors to clock speeds of 1.95GHz and 1.44GHz respectively, which provides you the best multitasking experience. The GPU of Adreno 510 is like a hell boon for crazy gamers.

Camera and Storage

The Samsung Galaxy C9 Pro has 16MP primary cameras features a CMOS image sensor, autofocus, dual-color LED flash, ISO control and a 1.9f aperture which, together, processes images of 4,616 x 3,464 pixels resolution and records videos of 1,920 x 1,080 at 30 frames per second. And the most crazy thing for selfie lovers it also has a wonderful 16MP front camera same as the rear.

It comes with an inbuilt internal storage of 64GB, further can be expanded upto 256GB.

Battery and Connectivity

Samsung Galaxy C9 Pro has a 4,000mAh li-polymer battery which claims to render a long runtime.

This smartphone houses with dual 4G SIM slot, advanced Wi-Fi 802.11, a/ac/b/g/n/n 5GHz, mobile hotspot, advanced Bluetooth v4.2, A-GPS, Glonass, Near Filed Connectivity, and type C USB port.

Samsung Galaxy C9 Pro detailed specifications.
Release dateOctober 2016
Form factorTouchscreen
Dimensions 169.90 (mm)x 80.70 (mm)x 6.90(mm)
Weight 189.00(g)
Battery capacity 4000(mAh)
Removable batteryNo
ColoursGold, Rose Gold
SAR valueNA
Screen size 6.00(inches)
Resolution1080x1920 (pixels)
Processor1.44GHz octa-core
Processor makeQualcomm Snapdragon 653
Internal storage64GB
Expandable storageYes
Expandable storage typemicroSD
Expandable storage up to 256 GB
Rear camera16-megapixel
Front camera16-megapixel
Operating SystemAndroid 6.0(Marshmallow)
Wi-Fi standards supported802.11 a/b/g/n
BluetoothYes, v 4.20
Number of SIMs2
SIM TypeNano-SIM
4G/ LTEYes
Supports 4G No
SIM TypeNano-SIM
4G/ LTEYes
Supports 4G No
Compass/ MagnetometerYes
Proximity sensorYes
Ambient light sensorYes
Temperature sensorNo
About Samsung

Samsung was founded back in 1969 as Samsung Electric Industries, Suwon, it's headquarter is at South Korea. Samsung Electronics today makes everything from televisions to semiconductor devices. It's first Android smartphone was released in 2009 and it's first tablet to be said in 2010. The company one of the biggest players among the smartphone market in the world. It has recently developed smartphone running Tizen OS, as an alternative to its Android-based smartphones. In sooner future we will get to see many updates from Samsung.

7 Most Useful Quick Android Tips For Beginners

7 Most Useful Quick Android Tips For Beginners

We’ve been consistently coming up with various guides and tutorials for Android. If you haven’t still checked our beginner guide to basic Android settings, then you want to check them out because you might be missing 10 very useful tips to get most out of your Android device.
Moving on, here are seven most useful quick Android tips. These tips are definitely helpful to increase your productivity level, which includes disabling vibration during phone calls, taking screenshots, settings default dialer, optimizing phone screen, viewing saved wireless network password, hiding files and folders, and adjusting brightness using status bar.


Whenever you get calls on your Android, by default the device rings along with vibration. This feature during calls is useful if you’re in a noisy place where its difficult to hear the ringtone; in that case the vibration might make you aware of incoming call.
But, vibration during calls is not always useful, so some of you might want to disable it. Disabling vibration might also save you some percentage of your battery charge.
On your Android device,
  • Go to Settings
  • Open Sounds
  • Scroll down to the Vibrate section and turn on/off Also vibrate for calls option
In this way you can now select your own preference during incoming call, either ring only or both ring & vibrate.


Do you want to share your score after getting a new high-score in a game, share portion of webpages, or share anything that’s on your Android screen? Whatever might be the reasons, you can simply take a screenshot to capture your Android screen and share it online or do whatever you’d want.
Taking a Screenshot on Android
  • Hold down Power button + Volume down buttons at the same time
  • Continue holding the buttons until you hear a click or a screenshot sound
To view screenshot
  • Visit Gallery app
  • You’ll find your screenshot image under Screenshots album


Making an app default (selecting “always” options) means that the system won’t display any prompt to select an app the next time. One of my friend recently downloaded a dialer app from Google Play, and made that particular downloaded app the default dialer app to make calls. Now he wanted to revert back to the Android default dialer.
Well, there is an easy way to revert to the default one.
Visit settings > Applications > Manage Applications. 
Select the “downloaded” among the tab menu, to view the list of applications which you’ve downloaded. From the list select the dialer app which you’ve downloaded. Within the dialer app info page, scroll down and press the “clear defaults” button.
That’s it, now open the dialer, and this time you’ll be prompted to select an app to open the dialer.


LiveDisplay, one of the cool feature which CyanogenMod has added to their nightlies and I personally first came across this feature on OnePlus phones running CyanogenMod 12.1. LiveDisplay optimizes the phone screen based on time, providing various options including color temperature, brightness & saturations, enhance colors, screen color.
Viewing LiveDisplay Settings in CyanogenMod
  • Visit Settings
  • Select Display & Lights
  • Tap on LiveDisplay
Now let’s go through the available options which you can manipulate to optimize your phone screen.
Activating Night Mode in CyanogenMod
Visit Settings > Display & Lights > LiveDisplay, and tap on Display mode to select Night which automatically activates Night mode on your CyanogenMod phone.
Similarly, you can activate the Outdoor mode which optimizes the settings so that you can effectively use your phone while you’re outdoor, under bright sun.
Activating Automatic Screen Optimization in CyanogenMod
  • Visit Settings
  • Select Display & Lights
  • Tap on LiveDisplay
  • And select Automatic from the list of modes
Instead of selecting modes (day, night, outdoor), some might consider allowing the system itself to auto manage and optimize. No matter, which time you use your phone, the system automatically adjusts its settings.
Adjusting Screen Color of Your Phone Screen
While you’re inside LiveDisplay settings, visit Screen color option below Calibration. Here you can adjust the Hue, Saturation, Contrast and Intensity of the screen.
You have predefined settings: Standard & Vivid – available for adjusting Screen color.
If you want to manually adjust the settings select Custom, and tap the gear icon. Now slide the sliders as per your preference and once you’re done, tap SAVE button to apply the changes.


Sometimes you might forget the password of the Wireless networks (WiFi) which you’ve previously connected to. Once you connect to a network, your Android system automatically saves the network’s details, so that the next time you connect to the same network you won’t have to enter password again.
Logging into the router and viewing the wireless settings might be the first option, only if you’ve access to the router. What if its a public, or other networks (office/company) where you don’t have direct access to the router?  Well, in that case there’s a workaround that lets you view saved WiFi password on your Android device.
Disclaimer: Make sure that your Android device is already rooted.
  • Open Terminal Emulator on your Android device
  • Type su in the terminal to gain superuser access
  • Use cat command to view the content of /data/misc/wifi/WPA_supplicant.conf file.
cat /data/misc/wifi/WPA_supplicant.conf 
WPA_supplicant.conf files stores the details of networks which you’ve connected to.


Whenever we are forced to hang out with kids and relatives, it’s usual case that your cousins are always curious to play games and view gallery on your mobile and the hard part is you can’t say “NO”. In fact, someone may sneak your phone without permission and take valuable or private data that you don’t want to share.
Here’s the quick solution for your android device to hide any file without using any third party app. The hidden file will not be view-able on your gallery, multimedia players, office editors, etc. It’s easy and only takes a second to hide your data from anyone until and unless the person knows about this trick.
  • Unlock your device, and open File Manager
  • Click the setting option > Show Hidden files
  • Now go the desired file/folder that you want to hide.
  • Just rename the file with (.) dot before the filename and save it. For example, “.sandy” or “.thequickblog”
  • And the file will be hidden. You can mark/unmark the Show hidden file option whenever you desire.
Hiding the Contents Without Renaming the Folder
  • To do so you can create a file by naming it as “.nomedia” inside the folder that you want to hide. It’s content on the Gallery will be hidden without renaming the folder.
Note: It works on most of the android devices but for Sony Xperia series, this workaround works only if it is a Premium app. In free version you can’t access this feature. You better download a file manager from google play store.
For Samsung devices, the name of default file manager is Files.


Ability to adjust brightness of your Android device screen by sliding across status bar is one of the cool feature which CyanogenMod has brought to their latest ROMs. In most of the android devices, brightness can be adjusted using the brightness level bar, but CyanogenMod users can quickly adjust the screen brightness of their CM powered Android device by sliding across the status bar.
Activating “Slide Status Bar to Adjust Brightness” Feature
  • Visit Settings
  • Select Status Bar under personal heading
  • Tap on Brightness control
Adjusting Brightness from Status Bar
Place your finger over the status bar and slide from left to right to increase the brightness and similarly slide for right to left to decrease. You can see the changes in the brightness level of your device in realtime, while you slide your finger across the status bar.


I hope these android tips were in anyway helpful to you.
Android is the most customizable phone out there, there are many workarounds which you can perform with your Android device to get most out of it. So for now, I am signing off from this post, promising you guys that I will be back with more other Android tips and guides.
Stay subscribed to our blog for further updates.