Introduction to Digital Image Representation

A digital image is a numeric representation (normally binary) of a two-dimensional image. Depending on whether the image resolution is fixed, it may be of vector or raster type. By itself, the term "digital image" usually refers to raster images or bitmapped images.

Source: http://en.wikipedia.org/wiki/Digital_image

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Record your voice for presentations

I recently came across a Blog of a teacher fellow, where one post caught my interest. She asked her students to post a personal presentation in the form of an audio file, with one condition: the file should be streamed. I asked my self, how can I help those students to get it right? So, here a short tutorial on how to create the audio file, host it at GoEar and post it in a Blogger Blog.

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Youtube we learn

In the previous post, I invited the reader to see two videos. One related to the most common file management tasks, the other related to the  most common way of organizing E-mails be Gmail. Both videos present some interesting concepts to the ICT students. Now, one question arose: how do we study from a video?

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File Management

What about a debate about folders vs. labels (AKA tags)? Traditionally, files ware organized using folders, until Gmail labels came around. 

Folders are a metaphor, in a computer a folder represents the old idea of a manila folder in a office. A manila folder contains many printed documents. It is generally formed by  folding a large sheet of stiff card in half. This is the reason why a computer folder icon looks like this:

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TED about passwords

Check out this article!  

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Password strength checker

Students from the 2nd. and 4th. HS year tested their password using the to following tools !

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Secure Passwords

Creating strong passwords is easier than you think.
Here's how to create an unlimited number of strong and simple-to-remember passwords.

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