Since childhood, we always wondered why the teachers gave us so much work and apparently did nothing themselves… but NOW, we understand that it’s the other way round! Teachers work so much harder just to prepare the topics and questions for the students and we just have to simply answer them! This we got to know only when we got the chance to lead the lab session 9 and we are sharing our experiences with all of you.

Since no one volunteered from group 4 to lead the lab session, thus, Saurabh Yadav and I(Shayan) volunteered to lead the lab session as Saurabh was part of the latex project and I was part of the webcrawling project, thus, we thought we would pool our knowledge together to lead the lab session. We covered BACKING UP OF DATA, DATA RECOVERY, LATEX AND WEBCRAWLING.

Backing up of Data

We explained how one can backup their data using the inbuilt backup tool available in Windows 7. Then we explained how we can do the same in linux by installing the sbackup package. But there were problems with 1 or 2 computers in which the package was not getting installed correctly. This was a minor hiccup that we faced with this section.

Data Recovery

We covered how one can recover their data in Windows and Linux. The Windows part would have taken a long time, so it was not covered in the lab. In linux, we used the photorec command (after installing the testdisk package) to recover mistakenly deleted data from a pendrive. We used pendrives with small storage size for this purpose as it would have taken too long for the photorec to recover data deleted from a hard disk partition.

Latex

Although this part was to be done in Windows environment using Miktex but since the administrator password was not available so we worked in linux. It took about 15-20 minutes to install the latex package for linux. So we had initially asked people to install latex first and while the installation was being done in the background, we planned to cover the other topics. But unfortunately when the installation was happening, we found that we could not install any other package. Thus we could only use half of the computers in the beginning (the one’s which had latex installed already).Initially it was hard to create interest in this topic but Saurabh did a good job of getting people interested in the topic! I was left marveling at his skills :P

Webcrawling

In the last 15 minutes of the class, we covered a webcrawling tool, websphinx. In the lab computers, we did not have the permission to install JAVA, so we had asked everyone to get their laptops with them for the demonstration. But in the lab, we found out that most people did not have the correct version of JAVA installed, so instead we demonstrated it on my laptop. Saurabh noted that while I was giving the demonstration, people enjoyed watching the formation of the tree graph of the web pages that had been crawled and which were being displayed on the websphinx interface.

Most people were keen to just get over with the lab, in fact one person kept on asking me how long the lab would take to end :P I was asked at 2:15, 2:45 and again at 3:15 this one particular question!

All in all, it was a unique as well as a good experience leading the lab session. We got to appreciate the problems that the previous lab leaders had faced especially in finishing off their portion within the required time

Shayan Lahiri
2010078

Saurabh Yadav
2010077

leading a lab session

I know I'm a little late but still there is always a first time :P (as im not much into blogging) .

I along with my partner ( lokesh) lead the lab session for week 8 - setting up wireless routers,security options in wireless routers and firewall. Its totally a different experience being on other side of the class, specially when we have to teach our own friends ;).

We struggled with the resources as our lab was solely based on wireless functionality and we had only 4 laptops (though i mailed every one to bring there laptops) so we decided to split ourselves

and lead the sessions in two halves which came out to be fruitful as we were able to complete our work in time and ( at-least i ) think didn't make the session a boring one .

I thank Amarjeet sir for giving us such an unique experience.

would love to learn all my subjects just like SM

:D

Hey guys

In this blog I am just mentioning a few interesting shortcuts that come in very handy when you need to act swiftly trust me :D

1. Win+ M : Minimizes everything (really handy when someone just comes all of a sudden :P )

2. Win+ Home : Minimize/restore all open windows except the active one

3. Win+ Left/Right Arrow: Dock a window to your left or right side of the screen

Hope you enjoy using these shortcuts when you need them :)

Firefox Mobile - the FOX comes to your phone

Firefox for mobile (codenamed Fennec, for the Fennec Fox the small desert fox) is the name of the build of the Mozilla Firefox web browser for ARM devices such as mobile phones and personal digital assistants (PDAs). Firefox for mobile 1.0 uses the same version of the Gecko layout engine as Firefox 3.6

Now Gecko is a free and open source layout engine used in many applications developed by Mozilla Foundation and the Mozilla Corporation (notably Firefox web browser), as well as in many other open source software projects. Gecko is written in C++ and is cross-platform, and runs on various operating systems including BSDs, Linux, Mac OS X, Solaris, OS/2, AIX, OpenVMS, and Microsoft Windows.Cross-platform, or multi-platform, is an attribute conferred to computer software or computing methods and concepts that are implemented and inter-operate on multiple computer platforms.

Talking about the browser now it supports the same web standards and it even accepts add-ons. The Firefox Sync lets the user have the same bookmarks, tabs, search history and other information like auto-fill form data and passwords whether the user is on the phone or on the computer. The user has the option of personalizing the homepage & sharing web links over social networks. One of the best features in the Fennec browser is the unique side-to-side swipe action, which brings up menus for things like tabs, bookmarks and settings. It minimizes the browser chrome and leaves more screen for web pages. This new version has the pinch-to-zoom browsing feature also.

The main limitation is that it is only compatible with Android and Maemo devices. Android phones like the Motorola Milestone and HTC Desire and Maemo phones like the Nokia N900 and the Nokia N810 Internet Tablet. Now Maemo is a software platform that is mostly based on open source code and powers mobile devices such as the Nokia N810 Internet Tablet. Maemo platform has been developed by Nokia in collaboration with many open source projects such as the Linux kernel, Debian , GNOME , and many more.

The main glitch according to different users comes in the form of its lack of speed but then this is a beta. In case you wondering what a beta is it is actually the name for the second stage of software testing, in which it is released for free or at a reduced price to a group of users just like a preview.

Where to get it from: http://firefox.com/m/beta

In case any of you want to know more about the features you can go to https://wiki.mozilla.org/Fennec

doubt related to OS

hello guys,
                i have a doubt regarding windows 7 as all the laptop users may be knowing this better than me and help me out..
what i want to ask is when we try to install windows 7 on some system already having some other windows..say windows xp, so windows 7 will replace the windows xp in the system then...will the info in the hard disk remain intact or will that info also get formatted??

this is i talked to someone and he told me that windows 7 needs a bare system for its installation... so just wanted to clarify..

DIFFERENCE BETWEEN i3 , i5 , i7 PROCESSORS

With all of these commercials coming in front of our faces about Intel’s newest line of processors, we can’t help but wonder what in the world the difference is.

This is something that I have been pondering upon and I found out that I wasn’t the only one wondering what on earth Intel has done by releasing these new processors.

 You can thank the coffee on a late night for this post. 

Intel Core i3 Processor

This particular Intel processor is the enter level processor of this new series of Intel processors. While it may not be the fastest one of the bunch, it can get the job done, at least for most applications.

Mind you, if you need high speed, I suggest one of the other processors that I will unveil in front of your eyes later on in this post. Here’s some of the Core i3 features.

• Uses 4 threads. Yes, it uses hyperthreading technology which is the latest craze due to its improved efficiency over earlier processors that were put on the market.
• This processor consists of 2-4 cores, depending on which one you get your hands on.
• Contains A 3-4 MB Cache
• Uses less heat and energy than earlier processors, which is always a good thing in this day and age.

Intel Core i5 Processor

• This is the mid-size processor of this bunch, recommended for those who demand a little speed, but not quite enough where the user will be running resource-intensive applications.
• As with the Core i3 processor, this comes with 2-4 cores, the main difference is that it has a higher clock speed than the Core i3.
• This is also a heat and energy efficient processor, but it does seem to be better at this particular job than the Core i3 processor.
• The number of threads used in this is no different than the Core i3 with 2-4 threads, and it also uses hyperthreading technology for a boost in performance.
• The cache of the Core i5 is bigger than the Core i3, it’s at 3-8 MB.
• The Core i5 is where the turbo mode is made available, this provides users with the opportunity to turn off a core if it’s not being utilized.

Intel Core i7 Processor

• This is for the users that demand power. Great for gamers and other resource intensive users.It suits our IIITD FIFA players.Guess who! 
• The cache on this one is 4-8 MB.
• This processor comes with 8 threads, definitely enough to get the job done quickly, maybe even at the speed of light if you’re lucky.  And yes it also utilizes hyperthreading technology.
• You will have four cores to take advantage of with this particular series.
• And just like the other ones in this Intel series of processors, it is more energy efficient and produces less heat.

I hope this shed some light on these new processors for you! 

Project Summary : Spyware and Keyloggers

Our (N, Anmol and mine) project covered the basics of spyware, keyloggers, cookies and phishing and how they all worked. Spyware is malware that is installed on a computer without the knowledge of the user and which monitors the user's activities while using the computer. Keylogger is software or hardware that keeps a log of all your keystrokes. Cookies are biscuits text files that are stored by websites on your system. They contain info about what you did while on that website. Phishing is a type of identity theft where users are fooled into surrendering personal data like passwords or bank account details. We gave a demonstration of a keylogging software and phishing. The demos were a little botched because we were running out of time. Still, we thankfully managed to finish within the 20mins. It had earlier seemed like we wouldn't be able to. Shayan asked a particularly nasty question, to which I had no answer at that point - What are the extensions of keylogger log files? I did a bit of Googling right now. Log files have the extension ".log" :)