Skip Repetitive Navigational Links

Blogs

We are proud for some bloggers from our community members in terms the topics covered, presentation, style of blogging. Please do post to share your ideas to our community members.

Thanks,

KolkataNET Team

 rss-img

Blog Posts

W(8)DP Customization Trick:  Ritaban Guha | 11/5/2011 at 10:04 AM
With a Hit over million, on the very 1st day of the launch of the Windows Developer Preview, WDP is probably the most Hot Topic in the market. Yet, a good size of crowd is disappointed with some of its new style statements. In aid to solution, this document will help improve the look & feel of the next windows, in the manner you desire. 1. There are already tools available to change the theme color and the Metro UI background. If you are not interested to get down dirty and get a flavor of full control of the UI style, I suggest you go for these tools. BluePoison, Win8StartTweeker etc. 2. And here’s the dirty method to get stuff customized. i. Download a hex editor. Anyone you like. E.g. HeXEdit, HxD etc. and install it. ii. Open the command prompt in admin mode. iii. Go to windows/System32/ and type takedown /f uxtheme.dll iv. Now type icacls uxtheme.dll /grant Administrators:F v. Now, copy the uxtheme.dll file to desktop or some other convenient place to edit. vi. Open up the file with your hex editor. vii. For the RGBA values, use the hext code for the color in red-green-blue format and use the alpha to set transparency. viii. Backup the uxtheme.dll in the System32 folder and copy the modified one there.. After reboot the changes will be a effective. If anything goes wrong, press F8 at boot time and go to Troubleshoot > Advanced Options > Command Prompt. Type the following commands, ren C:\windows\System32\uxtheme.dll uxtheme.dl.blabla ren C:\Windows\System32\uxtheme.dll.old uxtheme.dll [here uxtheme.dll.old is the backup file] Continue to read in detail >> http://ritaban.webs.com/apps/blog/show/10055772-w-8-dp-customization-trick-
ReadyBoost On Linux  Ritaban Guha | 6/8/2011 at 8:44 AM
In my previous post on readyboost I tried to explain out the basic ideology of the technique called readyboost and also some performance statistics to support the theory. Well that was for Microsoft operating systems [dedicatedly available in Vista or newer and have to be manually configured in older OSs].
 
 The idea of readyboost is simple. For machines with low RAM, whenever the data access requirements over-flood the RAM, the OS starts to pass the least probably-important data to the page files on the hard disk and loads currently required/most important/high priority data on to the RAM from the hard disk/page files. This is where the machine slows down. Activating the readyboost adds another layer in between the page files and the RAM in the data access hierarchy. Thus whenever the ram over-floods, the new data is loaded from the flash drive and the old data is passed to the flash drive. In the flash drive also data is collected and maintained in the same manner as the RAM.
 

Now, Linux also uses something similar to the paging file systems called the swap partition. Swap partitions do the almost the same job that is done by the page files in the windows environment. So it is possible to create swap partition on a flash drive. As because flash drives give a higher access speed, the swap partition will be faster on the flash drive. And if we assign priority to the flash drive swap compared to the dedicated hard disk swap, the flash drive enters in to the hierarchy scheme and performs almost the same way as the readyboost concept.

 

Read more
Y moved to Multi Core  Ritaban Guha | 4/3/2011 at 8:56 PM

 

We know its better, but how is the multicore architecture better than the single core and why this change is important, is an interesting question. A more important question is, how is a single core 2.55GHz single core [e.g. pentium 4] processor is not better than a 1.6GHz Dual-core, Core2Duo etc. processors.

Well it’s certainly a very strong point that, the clock frequency ultimately decides the processor speed. Higher the clock frequency, better the processor performance. But still we moved to the multicore architecture even if the clock frequency is not necessarily greater.  WHY?

 

 

Keep reading
instant ON  Ritaban Guha | 1/10/2011 at 12:53 PM
At the beginning when I used to get so amazed to see that “Loading Windows” screen [1st  was introduced to windows later other OSs ].  After an year or 2, I used to get amazed to realize that the behind that boring screen so many drivers were being loaded, so many things are happening behind the screen. And finally the OS logon screen appeared. WOW.
And now, I feel like throwing my PC if takes to much time to boot. “60 second to boot!! I rather keep in on”. :P
Many people does keep their PCs on, as because the boot time is too much for them. Power isn’t cheap. IF every one can save 1Watt/month, that could serve someone or few with no power at all.
Apart from the Nobel thoughts, keeping the PC ON, reduces the device lifetime and there are other side effects also. So the Idea of Instant boot was in the dreams for a long time.

And voila, Microsoft hints for an 8 second boot Windows 8. With Intel’s SandyBridge processors, It may be possible to provide boot time less that 8sec.  Microsoft didn’t promise anything but they are working on the feature called “Instant ON”.

read more.. 

Be fast....be a Dvoraker....  Ritaban Guha | 8/24/2010 at 9:41 PM

 

 
 
Now, for all the programmers, there should be a common quality among them, which is, faster coding capability then normal people..

But still we r not yet a Dvoraker..

lets get in to the description ..

There are two popular types of keyboards [the main weapon of a programmer]. The all time favorite QWERTY
ant the myChoice, Dvorak.

what is QWERTY keyboard layout!!

well. its the keyboard thay we use generally.

it was designed for the typewriters..
the early typewrites had a problem if subsequent keys were pressed very quick.
they couldn't recognize them that fast, causing errors. So, the QWERTY type keyboard was invented by Christopher Sholes.

So the most frequent keys were kept apart from each other, which improved the efficiency of the typewriter but not the typist.

But it somehow became the most popular convention of keyboard layout.

what is Dvorak keyboard layout!!

this is the layout which was designed to improve the efficiency of the typist not the typewriter.
Dvorak layout keeps the most important keys on the middle row. The mid importance keys on the top row and the list important keys on the bottom row [approximately].
In the middle row, the vowels are placed on the left side and the most important consonants on the right.
So, a Dvorak typist would keep his fingers on the middle row. this provides a faster typing speed compared to QWERTY.
 
Lets look at the statistics..

topic                                  QWERTY                                         DVAROK

keystrokes                            32%                                                  70%
in middle row

keystrokes                            52%                                                   22%
in top row

keystrokes
in bottom row                       16%                                                   8%

finger movement                 30Km/Day                                         15Km/day

user friendliness                 takes time to get used to                very quick to get
                                                                                                             used to..
 
============================================================

almost all computers supports DVAROK today by default. MaCs use DVAROK.
many great programmers [Bram Cohen(inventor of BitTorrent), Matt Mullenweg(lead developper of WordPress), Barbara Blackburn(world's fastest typist)]

it is a good practice/choice for efficient coders who take less time to think then to type.
most importantly,.. it was a nobel work.. It deserves respect..

Page: