Monday, June 6, 2016

Airborne Invasion of Normandy

Airborne Invasion of Normandy

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Friday, May 27, 2016

The surprising habits of original thinkers | Adam Grant

An interesting video on how to become more creative and being more original.

Image result for ted talk

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Thursday, May 19, 2016

The History (and the Future) of Software

Computer History
The History (and the Future) of Software

In this lecture, IBM Thomas J. Watson Research Center's Grady Booch will take audiences on a journey that explores the evolution of software, from the time when computers were human to the present, where we live in a veritable sea of software. Along the way, Booch will look at historically interesting examples of software and study the evolution of the process and the tools of software development. Even now, the nature of software and software development is under rapid transformation, so Booch will conclude with some observations about the future of software.


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Professor Messer's Security+ Study Group - May 2016

Professor Messer's Security+ Study Group - May 2016

Professor Messer IT Certification Training Courses

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Wednesday, May 11, 2016

Introducing TED-Ed: Lessons Worth Sharing

TedEd Lessons

TED-Ed's mission is to capture and amplify the voices of great educators around the world. We do this by pairing extraordinary educators with talented animators to produce a new library of curiosity-igniting videos. You can nominate a teacher, nominate an animator or suggest a lesson here:

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MIT Videos

Free MIT Videos

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Old Maps Online

Old Maps Online. The easy-to-use gateway to historical maps
in libraries around the world.

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Monday, May 9, 2016

W3Schools Learn CSS, Javascript, SQL, PHP and more.

Learn CSS, Javascript, SQL, PHP and more.

W3Schools is a web developer information website, with tutorials and references relating to HTML, CSS, JavaScript, PHP, SQL, Bootstrap, and jQuery. Created in 1998, its name is derived from the World Wide Web, but is not affiliated with the W3C (World Wide Web Consortium). It is run by Refsnes Data in Norway. W3Schools presents thousands of code examples. By using an online editor, readers can edit examples and execute the code in a sandbox.  (

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Who Invented the Computer?

Who Invented The Computer?

There are more than a dozen legitimate contenders to consider, all designers of unique, remarkable machines. But with facts and timelines clouded by controversy, contradictions, and intrigue, debate has raged in courtrooms and classrooms for decades. The answer may surprise you

Ada Lovelace

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Artificial Intelligence

Artificial Intelligence by Computer History.

Computers can be taught to play chess, drive cars, recognize faces, understand speech, and talk to us. How did we endow computers with this level of artificial intelligence? And how much further can we go in getting them to reason like human beings, think for themselves, and demonstrate common sense?

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Wednesday, May 4, 2016

This is what happens when you reply to spam email - Ted Talk by James Veitch

This is what happens when you reply to spam email
Ted Talk by James Veitch

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MS Training - Database Fundamentals


Microsoft Virtual Academy   Courses 

Database Fundamentals

Microsoft Virtual Academy provides free, online training to help Developers, IT and Data Professionals, and students learn the latest technology, build their skills, and advance their careers.

Direct Link:

The database training for beginners introduces and defines the terminology, concepts, and skills you need to understand database objects, security requirements, graphical tools, T-SQL scripts, and writing database queries, in addition to executing stored procedures. It also helps you prepare for Exam 98-364, part of a Microsoft Technology Associate (MTA) certification. The database training course is designed for individuals seeking to learn database fundamentals, including relational databases, database management systems, and database components. Take this free course and expand your database skills and knowledge today.
Associated Exam(s) | 98-364: Database Fundamentals
Related Certification | MTA
Associated Course(s) | 40364A: Database Administration Fundamentals: MTA Exam 98-364

Introduction to Core Database Concepts
This module defines databases, provides examples of relational database tables, and introduces common database terminology.
Relational Concepts
In this module you’ll learn about normalization, referential integrity, and constraints.
Creating Databases and Database Objects
This module describes data types, database objects, DDL statements, and creating scripts.
Using DML Statements
This module covers DML statements, using the SELECT statement; using INSERT, UPDATE, and DELETE to manage data; and indexes and triggers.
SQL Server Administration Fundamentals
In this module you’ll find out about SQL Server security; securing database and objects; and performing database backups and database restores.
Recommended Resources & Next Steps for Database Fundamentals
Please peruse this section for additional information that supports this course. This is an opportunity for you to dive deeper into Database Fundamentals at your own pace.

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Monday, May 2, 2016

Oracle Virtual Box UUID Failed to Open Hard Disk Error

I recently copied a vdi file in my VirtualBox for Windows 7. I got the “Cannot register the hard disk C:\path\to\new\vdi with UUID {xxxx} because a hard disk C:\path\to\old\vdi already exists in the media registry (C:\path to VirtualBox.xml) error. 

The fix is easy but it takes a little bit of command line.

Open a command line in Windows.
Go to where Virtualbox is installed.
Type in: VBoxManage.exe internalcommands sethduuid "C:\path\to\new\vdi" (I drag the file from windows explorer and it sets the path for me.)

You should get something like this:

Change UUID with VBoxManager

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Sunday, May 1, 2016

Claude Shannon's Perfect Secrecy

Claude Shannon's idea of perfect secrecy: no amount of computational power can help improve your ability to break the one-time pad.

Khan Academy

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Free Online Computer Science Courses MOOCS

Free Online Computer Science Courses

Get free Computer Science courses online from the world’s leading universities. You can download these audio & video courses straight to your computer or mp3 player. For more online courses, visit our complete collection, 1200 Free Online Courses from Top Universities.

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Saturday, April 30, 2016

The best free cultural & educational media on the web

Open Culture brings together high-quality cultural & educational media for the worldwide lifelong learning community. Web 2.0 has given us great amounts of intelligent audio and video. It’s all free. It’s all enriching. But it’s also scattered across the web, and not easy to find. Our whole mission is to centralize this content, curate it, and give you access to this high quality content whenever and wherever you want it. Some of our major resource collections include:

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Socrative - An Online Quiz Solution

Socrative empowers you to engage and assess your students as learning happens. Through the use of real-time questioning, result aggregation, and visualization, you have instant insight into levels of understanding so you can use class time to better collaborate and grow as a community of learners.

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