30+ free tools for data visualization and analysis

The full article originally appeared at www.computerworld.com.

“There are many tools around to help turn data into graphics, but they can carry hefty price tags. The cost can make sense for professionals whose primary job is to find meaning in mountains of information, but you might not be able to justify such an expense if you or your users only need a graphics application from time to time, or if your budget for new tools is somewhat limited. If one of the higher-priced options is out of your reach, there are a surprising number of highly robust tools for data visualization and analysis that are available at no charge.” [emphasis added]

The article provides links to:

  • 22 free tools for data visualization and analysis
  • 8 cool tools for data analysis, visualization and presentation

Kill the Password: A String of Characters Won’t Protect You

The full article originally appeared at www.wired.com.

“What we can say for sure is this: Access to our data can no longer hinge on secrets—a string of characters, 10 strings of characters, the answers to 50 questions—that only we’re supposed to know. The Internet doesn’t do secrets. Everyone is a few clicks away from knowing everything.

Instead, our new system will need to hinge on who we are and what we do: where we go and when, what we have with us, how we act when we’re there. And each vital account will need to cue off many such pieces of information—not just two, and definitely not just one.”

“In many ways, our data providers will learn to think somewhat like credit card companies do today: monitoring patterns to flag anomalies, then shutting down activity if it seems like fraud. “A lot of what you’ll see is that sort of risk analytics,” Grant says. “Providers will be able to see where you’re logging in from, what kind of operating system you’re using.””


Comparison And Differences Between LED Technologies: DIP vs. SMD vs. COB vs. MCOB

This information originally appeared at  www.hitlights.com.

“Choosing an LED technology is like choosing the right winter coat to wear: there are different models that provide more or less features depending on what you might need. Once you decide the features you want from your LED, you can easily choose the package type accordingly. The “package type” refers to the way an LED’s semiconductor die–similar to the filament in an incandescent–is ­packaged inside LED devices for different applications. The LED package can be very basic, like with the DIP LEDs, or it can be very versatile to handle lots of different needs, such as with the SMD package. Modern LED technology as we know it was developed in 1962 by Nick Holonyak with his invention of the DIP LED, and the LED industry has been innovating it ever since. The following article is meant to be a brief overview of the major types of LED package technology that are commercially available today.”

The site seems to be primarily about LED strip lighting for architectural and commercial uses.


Boarding Pass Barcode Info and why you should care

This article first appeared in The Windows Club.

“Besides the readable stuff, a boarding pass accommodates passengers’ last name and also the record key for the flight he or she is taking. Flier miles are also present on most of the reputed Airlines’ bar or QR code. Using this data on the website of the airline, people can get much more information such as details about flights booked for future, flier miles and other data that might identify a person.

With that information, anyone can change future flights’ seats, cancel the flights altogether and even reset the airline account so that the original passenger is no longer able to access his account right away.

. . .

There is a good amount of information on the boarding pass. But you need not panic if you can make sure that nobody else can get their hands on the pass slip with the barcode intact.”