Friday 7 September 2012

Try To Answer - Think Smart

Below are 4 questions. Answer them instantly. You can't take your time.
Answer them immediately. No pencil or paper! OK?
Let's find out just how smart and clever you really are.
Ready? ...
GO!!!

*FIRST QUESTION: *You are participating in a race. You overtake the second
person. What position are you in?
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*ANSWER:* If you answer that you are first, then you are absolutely wrong!
If you overtake the second person and you take his place, you are second!
Try not to screw up in the next question.
To answer the second question, don't take as much
time as you took for the first question.
*SECOND QUESTION:* If you overtake the last person, then you are...?
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*ANSWER:* If you answered that you are second to last, then you are wrong
again. Tell me, how can you overtake the LAST person?!
*THIRD QUESTION:* Very tricky math! Note: This must be done in your head
only. Do NOT use paper and pencil or a calculator. Try it.
Take 1000 and add 40 to it.
Now add another 1000.
Now add 30.
Add another 1000.
Now add 20.
Now add another 1000.
Now add 10.
What is the total?
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*ANSWER:* Did you get 5000? The correct answer is actually 4100.
Don't believe it? Check with your calculator! Today is definitely not your
day. Maybe you will get the last question right?

*LAST QUESTION:* Mary's father has five daughters: Nana, Nene, Nini, Nono.
What is the name of the fifth daughter?
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*ANSWER:* Nunu? Nana? Nene? NO NO! Of course not. The fifth daughter's name
is Mary.

                                                                                                                            By
                                                                                                                *Subbulakshmi.S*
                                                                                                                          III CSE

ANDROID ICE CREAM SANDWICH VS APPLE iOS 5

T
he battle for Smartphone supremacy is at the peak with Google releasing the Samsung Galaxy
Nexus to counter Apple’s iPhone 4S that runs iOS 5.
With the iPhone 4S flying off the shelves, Google will be relying on the fourth iteration of
Android, dubbed Ice Cream Sandwich (ICS), to continue attracting users. We take a look at how
the operating system shapes up against iOS 5.
User interface-android gets a revamp, iOS gets a polish
Ice cream Sandwich will come with a revamped interface, which aims to blend the best
of existing Android Honeycomb and Gingerbread platforms. Google has created a new
typeface, which it claims is optimized for high resolution screens. The “Roboto” font might
have a comical name, but it looks swish, is easy to read and provides a refreshed look to the
Android platform. Gone are the context sensitive buttons that have been sitting under the
touch screen on previous Android smart phones. These have been replaced by virtual buttons
in the system Bar similar to the Honeycomb platform. The onscreen buttons come in the
form of Back, Home and Recent Apps. A feature that Android had borrowed from iOS is the
ability to create them by dragging and dropping apps on top of each other. This feature has
been long overdue and will help users to group items together without the three click process
of having to create a folder and then drag items into it.
Meanwhile, Apple resisted the temptation for an overhaul, and to be fair the iOS
platform didn’t really need one. The solitary home button is still found beneath the screen on
iOS devices and home screens display apps and folders in the same fashion.
A key addition to iOS is the inclusion of a Notification center, which funnily enough has
been borrowed from Android. This is accessed by swiping a finger down from the lock
screen a feature that has also just debuted on the stock version of Android.
Apple has also integrated Twitter into iOS, allowing users to tweet directly from core
applications such photo, camera, you Tube, Maps as well as the safari browser.
Voice controls- siri has a head start
Apple has taken voice recognition to the next level. The software included in iOS 5 that
has created the most buzz is the voice recognition, from what we have seen so far this is shaping
up to be the best example out there. Siri is capable of understanding nature speech and of
answering questions as well as performing tasks. It is possible to dictate emails and txt messages
as well as set appointments and reminders and these features work well as the video below
shows. In the US, user can also say thing like”I want a pizza” and siri will search the area for
pizza restaurants close by. This feature is yet to be available outside the US, but a expected to
land in the UK in the not too distant future. Google is no slouch when it comes to voice
recognition either. The ability to search hands-free on mobile devices has been available for a
while, but didn’t set the would alight. Of course, siri will force everyone including Google to up
their game and unsurprisingly ICS introduces additional voice capabilities. Users are now able to
dictate text and can speak continuously or pause if needed. As text is entered, any errors are
underlined and these can be corrected with a quick tap. Google seems to have nailed down the
dictation aspect, but there are no signs of ICS being able to do the other things can do. Perhaps
we will see the “Droid “assistant in the near future.
Multitasking-ice cream sandwich shows the biggest improvements
ICS has just upped the stakes when it comes to Smartphone multitasking, edging it ever
closer to desktop experience. Depressing the recent apps button will bring up a list of thumbnails
of apps used, and tapping one of these will take users directly to that app. In comparison, multitasking
on iOS 5 smart phones is no different than with iOS 4 devices. Users can double tap the
home button and this brings up a row of apps that are being used together with music controls. It
is surprising that apps haven’t improved this as even Windows phone mango has a better system.
Internet-Too close to call
Andy Rubin, the vice president of mobile at google and the man behind android, claims
that ICS will incorporate a “desktop-class browser”, so big thing are expected. User will be
pleased to hear that page loading times will be significantly improved. Google is touting some
pretty impressive benchmarking results. The firm says that pages load nearly 220 percent faster
on the older Google Nexus S when using ICS in place of Android 2.3 Gingerbread in the V8
Benchmark suite. The revamped Android will allow users to sync Google chrome bookmarks
from all of their accounts, and allow users to save content so it can be viewed later. Users can
also tinker with the prowler’s zoom levels and change default test sizes. Of course, Android
also comes with flash support, which means that the platform provides one of the best all-round
internet experiences.
Another feature that we were happy to see is the data usage menu, which has been lacking
in Android devices. Users will now be able to see exactly how much data they are crunching
through on a cellular and Wi-Fi network. Android 4.0 will also tell users how much data each
app is using and will allow users to set warning levels or limits. This is going to be really useful
for people who have crossed their data limited before and for travelling users.
Unsurprisingly, iOS 5 also brought a significant speed bump to browsing compared
with previous devices .In over test we found that the iPhone 4S was able to load pages at least
a couple of seconds faster than the iphone4. On the ipad, tabbed browsing is also available,
bringing this closer to desktop browsing. Additionally ,a “Reading list” feature has been added
to safari, allowing users to cache pages to cache pages so that they can be viewed offline, much
like with Android 4.0. The iCloud also keeps this reading list synced across apple devices. As
regards usage monitoring, it is possible with iOS devices to see the total amount of data sent over
a cellular connection but not on an individual app basis, and there is no way to set warnings or
limits. Adobe Flash compatibility remains a major omission for Apple devices, and this does not
look like being rectified soon.
In terms of raw speed expect there to be little difference between the platforms, but Android
has the edge as it provides a more rounded experience.
Messaging and email
Android has made some significant improvement in this area. ICS comes with improved
error correction and word suggestions. A spell checker underlines miss-spelt words and tapping
on this will bring up suggestions. In terms of email, users can credit quick response and store
them in the app, this enter them from a menu when composing. When a replying to a message,
it is also possible to Reply All and Forward without having to change screen. Enterprise users
will be pleased to hear that the Email app supports exchange ActiveSync v14. EAS certificate
authentication is included and administrators will also be able to limit attachment size or disable
them altogether.
A resizable email widget also lets users flick through recent emails right from the home
screen, then jump into the email app to reply.
Meanwhile, Apple has introduced a new messaging service that aims to compare with BBM
and Google talk. iMessage allows user to send a instant messages between iOS 5 devices via Wi-
Fi or 3G. Users are able to send texts, photos, videos, contacts and locations. The app is synced
with iCloud, so users can start a conversation on one Apple device and continue it on another,
which will be useful for users who have multiple iOS devices.
Basic improvements have been made to email-with users able to format text, flag messages
and search the body of text messages. User can also setup an @me.com email, which is then
synced with iCloud.
Cloud-iOS finally follow in Android’s footsteps
Android has been synced to the cloud pretty much since day one, with users able to link their
Gmail account to their device and access games, photos, emails and contacts across devices.
Apple has only just started to offer cloud based services, in their form of iCloud. This service
aims to back up photos, mail, contact, music, documents and apps. However, free storage is
limited to 5GB per user.
Android ice cream bonus
Ice cream Sandwich also has a couple of extra features as it aims to outshine iOS. These
come in the form of Face Unlock and Android Beam. Face Unlock to pretty self explanatory, as
it allows user to unlock their devices with their faces instead of a pin. The system users facial
recognition technology to register a face and is able to recognize it later when unlocking the
'device.
Meanwhile, Android Beam allows two Android devices to share a content using near-field
communication (NFC). Links to apps, contacts, music, videos can be exchanged and there is no
menu option or paring required. Devices just need to be touched together to send. The feature is
similar to the “Bump” app available for iPhones, but Google’s app should be faster.
Overall
Both operating systems have a vast number of features that makes them appealing, but it feels
like a Android just has the edge when it comes to areas such as notifications, multitasking and
web browsing. Face Unlock and Android Beam are also interesting features, and Google will be
hoping that these apps generate interest in the platform.
Apple does, however has head start when it comes to voice recognition. Siri has certainly
captured the imagination of their public and shows Apple’s ability to take existing technology to
the next level.
There is little to separate the platforms in terms of user interface, but Ice Cream Sandwich is a
complete overhaul thus some bugs had been reported.


                                                                                                                          By
                                                                                                                     C.Mejari
                                                                                                                        II CSE

MASSIVE MULTIPLAYER ONLINE GAMING

A massively multiplayer online game (also called MMO and MMOG) is a multiplayer video game which is capable of supporting hundreds or thousands of players simultaneously. By necessity, they are played on the Internet and feature at least one persistent world. They are, however, not necessarily games played on personal.. Most of the newer game consoles, including the PSP, Play Station 3, Xbox 360, Nintendo DS,  PS vista and Wii can access the Internet and may therefore run MMO games. Additionally, mobile devices and smart phones based on such operating systems as Android, iOS and Windows phone are seeing an increase in the number of MMO games available.
   
Game types:

1.      Role-playing ex: Final Fantasy XI

2.      First person Shooter ex: Planet side 1 & 2

3.      Real-time strategy ex: Warcraft series

4.      Turn-based strategy ex: War on vehicles, Ultracorps

5.      Simulations ex: World War II online

6.      Racing ex: Need for speed: world, Race or Die

                                                                          By

                                                                     K.Dhivya

                                                                       III CSE

 

 



Lustre Parallel Storage Solutions

As digital media and content continues to change our lifestyles and the way we work our need for increased storage and storage bandwidth continues to grow at a worrying rate. Storage needs have far exceeded expectations and clients are now looking for reliable storage solutions that offer genuine scalable performance without compromise for large bandwidth applications and high performance compute clusters.
Building upon our award winning range of Igloo storage solutions, our new range of Igloo "L series" parallel storage solutions provide genuine enterprise class storage that can be scaled to suit user needs whether it may be increased I/O performance, supplementary storage, further virtualised machines or improved availability and functionality.
Launched in partnership with Alces Software we assure our solutions deliver high throughput low latency performance to meet your requirements and budget.

Key Features
·         Dedicated High performance parallel storage appliances
·         Enhanced software tools deliver simplified management
·         Expand existing live systems on the fly
·         Support for over 10PB (Petabytes) of storage
·         Support for over 200GB/sec and over 25,000 clients
·         Add further storage nodes to suit your I/O performance and capacity needs
·         Upgrade & Extend existing Lustre systems
·         Discuss configuration and support services via remote access or on-site warranty
·         Discuss comprehensive training courses available including how to manage and extend file systems
·         Free software updates and annual onsite cluster health check
·         Onsite survey to measure current storage utilisation
·         Network and infrastructure assessment
·         Workload benchmarking to profile applications and data requirements
·         Perform data growth profiling to assess current and future needs

Specifications
Lustre Storage Solution
Raw Storage
Useable Storage
Write performance
Read performance
Small - single unit
10TB
7.2 (7336GB)
450 MB/sec
350 MB/sec
Small - two units
20TB
14.4 (14,672GB)
900 MB/sec
700 MB/sec
Medium - Single unit
22TB
14.4TB (14,672GB)
850 MB/sec
700 MB/sec
Medium - two units
44TB
28.8TB (29,344GB)
1700 MB/sec
1400 MB/sec
Large - single unit
32TB
21.6TB (22,008GB)
1350 MB/sec
1050 MB/sec
Large - two units
64TB
43.2TB (44,016GB)
2700 MB/sec
2100 MB/sec

Scalability through parallelism - what makes these solutions special?
Lustre works by considering your data files as a number of blocks of data where each block may be stored on one or more object-storage servers (OSS) with file metadata recorded by a dedicated metadata server (MDS). Compute nodes can mount the Lustre file system and use it like any other POSIX compliant file system under Linux providing compatibility with most Linux applications. As users write to the file system the compute nodes send blocks of data to the OSS's which write them to disk. By using multiple OSS's performance gains are observed as the I/O data is served by multiple storage devices in parallel. By adding more OSS's it is possible to achieve near linear scaling in aggregate storage performance over a HPC cluster.
Lustre supports a wide range of communication networks including Ethernet and Infiniband. Typically servers providing MSD and OSS services are connected to the cluster interconnect with all head and compute nodes. Files written by any node can be read and updated by any other node on the cluster similar to traditional NFS or CIFS storage solutions. To Expand the capacity or performance of the Lustre file system additional OSS machines may be dynamically added when required - the file system simply expands into the new space as it is attached.
·         Scale from TB to PB dynamically without downtime
·         Flexible deployment over Infiniband or Ethernet interconnects
·         Mix-and-match building blocks providing high capacity and performance
·         Single file system provides simple management and low cost-of-ownership
·         High density, power efficient storage servers
·         Certified and benchmarked configurations for speed of deployment
·         Ideal for video rendering, live broadcasts, media content storage and distribution
·         Parallel access to massive energy, manufacturing and imaging datasets
·         Snapshot long-running CFD and bioscience jobs to disk at gigabyte-per-second speeds

What is the Lustre Parallel File system?
The Lustre Parallel file system provides unprecedented storage performance to all nodes of a cluster for a wide range of data intensive HPC processing workloads. Whether you are performing a reservoir simulation across a multi-terabyte dataset, gene sequencing across millions of stored proteins or rendering the next Hollywood blockbuster, delivering data to your nodes is likely to cause a bottleneck.
The Lustre parallel file system provides a single file system namespace to every client node in your cluster thereby reducing the management overhead of multiple traditional file systems required to achieve scalability. With support for over 10PB (Petabytes) of storage, 200GB/sec aggregate performance and over 25,000 clients Lustre is the most scalable HPC file system currently available with 7 of the Top10 HPC systems worldwide using it in production.
                                                                                                                              By
                                                                                                                    K.  Pon abinaya
                                                                                                                      III  year CSE


COMPUTATIONAL GENOMICS

Computational genomics refers to the use of computational analysis to decipher biology from genome sequences and related data , including both DNA and RNA sequence as well as other "post-genomic" data (i.e. experimental data obtained with technologies that require the genome sequence, such as genomic DNA microarrays). As such, computational genomics may be regarded as a subset of bioinformatics, but with a focus on using whole genomes (rather than individual genes) to understand the principles of how the DNA of a species controls its biology at the molecular level and beyond. With the current abundance of massive biological datasets, computational studies have become one of the most important means to biological discovery.
The roots of computational genomics are shared with those of bioinformatics. During the 1960s, Margaret Dayhoff and others at the National Biomedical Research Foundation assembled databases of homologous protein sequences for evolutionary study. Their research developed a phylogenetic tree that determined the evolutionary changes that were required for a particular protein to change into another protein based on the underlying amino acid sequences. This led them to create a scoring matrix that assessed the likelihood of one protein being related to another.
Beginning in the 1980s, databases of genome sequences began to be recorded, but this presented new challenges in the form of searching and comparing the databases of gene information. Unlike text-searching algorithms that are used on websites such as google or Wikipedia, searching for sections of genetic similarity requires one to find strings that are not simply identical, but similar. This led to the development of the Needleman-Wunsch algorithm, which is a dynamic programming algorithm for comparing sets of amino acid sequences with each other by using scoring matrices derived from the earlier research by Dayhoff. Later, the BLAST algorithm was developed for performing fast, optimized searches of gene sequence databases. BLAST and its derivatives are probably the most widely-used algorithms for this purpose.
The emergence of the phrase "computational genomics" coincides with the availability of complete sequenced genomes in the mid-to-late 1990s. The first meeting of the Annual Conference on Computational Genomics was organized by scientists from The Institute for Genomic Research (TIGR) in 1998, providing a forum for this speciality and effectively distinguishing this area of science from the more general fields of Genomics or Computational Biology.The first use of this term in scientific literature, according to MEDLINEabstracts, was just one year earlier in Nucleic Acids Research.. The final Computational Genomics conference was held in 2006, featuring a keynote talk by Nobel Laureate Barry Marshall, co-discoverer of the link between Helicobacter pylori and stomach ulcers. As of 2010, the leading conferences in the field include Intelligent Systems for Molecular Biology (ISMB), RECOMB, and the Cold Spring Harbor Laboratory and Sanger Institute's meetings titled "Biology of Genomes" and "Genome Informatics".
The development of computer-assisted mathematics (using products such as Mathematica or Matlab) has helped engineers, mathematicians and computer scientists to start operating in this domain, and a public collection of case studies and demonstrations is growing, ranging from whole genome comparisons to gene expression analysis. This has increased the introduction of different ideas, including concepts from systems and control, information theory, strings analysis and data mining. It is anticipated that computational approaches will become and remain a standard topic for research and teaching, while students fluent in both topics start being formed in the multiple courses created in the past few years.
Contributions of computational genomics research to biology include:
§  discovering subtle patterns in genomic sequences
§  proposing cellular signalling networks
§  proposing mechanisms of genome evolution
§  predict precise locations of all human genes using comparative genomics techniques with several mammalian and vertebratespecies
§  predict conserved genomic regions that are related to early embryonic development
§  discover potential links between repeated sequence motifs and tissue-specific gene expression
§  measure regions of genomes that have undergone unusually rapid evolution 

                                                                                                                       BY
                                                                                                                 P.NIVETHA
                                                                                                                III YEAR CSE

Best answer by B.E students during viva...............

 This is best answer by B.E students during viva. >---------------------> This one is for those who had nightmares during their Engineering Viva's (EEEs and ECEs). They bring back fond memories for those who care to smile at the past.


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Interviewer: Why is a thicker conductor necessary to carry a current in A.C.as compared to D.C. ?
Candidate : An AC current goes up and down (drawing a sinusoid) and requires more space inside the wire, so the wire has to be thicker.

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External (to student) : "Why does a capacitor block DC but allow AC To pass through ?
Student: See, a capacitor is like this ---| |--- , OK. DC comes straight, like this ----------, and the capacitor stops it. But AC,goes UP, DOWN, UP DOWN and jumps right over the capacitor!" ------------------- good one : - )

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Interviewer: How will you tell if that wall outlet carries AC or DC?
Candidate: I will put my finger in. If it is pushed away, it is AC. If it gets stuck, it was DC.

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Interviewer: H! ow will you reverse direction of an Induction motor?
Candidate: I will remove the four bolts at the x-ud, turn the motor around, and put back the bolts.

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Interviewer: How do you start a synchronous motor?
Candidate: Vrrrrrrrmmmmmmmmmmmmmmmmmmm (in rising pitch)

Interviewer: Stop! Stop!
Candidate: rrrrrrrmmmmmmmmmmmmmmmmmmmm (in falling pitch)

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Examiner: "What is a step-up transformer?"
Student: "A transformer that is put on top of electric poles."
Examiner (smiling): "And then what is a step-down transformer?"
Student (hesitantly): "Uh - A transformer that is put in the x-udment or in a pit?"
Examiner (pouncing): "Then what do you call a transformer that is installed on the ground?"
( Student knows he is caught-can't answer )
Examiner (impatiently): "Well?"
Student (triumphantly): "A stepless transformer, sir!"

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Examiner: Do you know Ohm's Law???
Student: Sure Sir...
Examiner: Well...Narrate me...
Student: Which one Sir?? 1st or 2nd Law???
Examiner (getting shocked): How many Ohm's Law do you know???
Student (with confidence): Well sir...there are two Ohm's Laws.Every one knows...
Examiner (Smiling): Ok. Then tell me the 2nd one.
Student (thinking and thinking): Sir.I can't remember the entire law exactly...But the last portion of the law I can remember.
Examiner: Ok. You tell me the last portion only.
Student: Well sir. The last portion of the law tells like "This is called Ohm's Law" !!!!!!


                                                                       ~N.VINODHINI
                                                                   III CSE

FEW JOKES ON LEAVE

 "A leave letter to the head master: " As I am studying in this school I am suffering from headache. I request you to leave me today."



"Since I have to go to cremation ground at 10 O'clock and may not return, please grant me half day casual leave."



"an IT Comp., Bangalore: "Since I have to go to my village to sell my land along with my wife, please sanction me one"-week leave."
"My wife is suffering from sickness and as I am her only husband at home, I may be granted leave."
Employee:
Boss, Now I have got married..! Please increase my salary..!
BOSS:
Factory is not responsible for accidents occurring outside the company..!

After reading the form filled by an applicant..
The employer said: " WE do have an... opening for you...! "
Applicant:
What is it?
Interviewer:
Its called the "door..!"

Long back, a person who sacrificed his sleep, forgot his family, forgot his food, Forgot laughter were called
"Saints"
But now they are called.. " IT professionals "

                                                      ~K.SYLVIA FRANCY MARY
                                                III CSE