Lesson #11 Personal protection and Data protection

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  This is our last lesson and it involves Personal Protection and Data protection . It is one of the most important issues to consider when using any kind of device. As educators we will have an important role and our knowledge on internet safety is essential. Also it must be constinously updated due to rapid changes in internet use and behaviour. Here are some guidelines to keep our navigating space safe We should always be on guard. Some elements to bear in mind are the following to keep track of the security in our devices: 1. Control measures : •Device access: Unlock code, facial recognition, visual pattern, fingerprint. •Shared data: Bluetooth, manage location •Remote in case of theft or loss •External memory 2. The importance of security patches and updates :           •Malware: Malicious program that seeks to obtain personal data and money. •Antivirus and Malware Detection Tool 3. Backups: •Use an external disk. •Through synchroniz...
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Lesson #9 DAY 1 THEORY. Innovative and creative use of digital technology

In this lesson we first learned about the difference between Digital Multimedia and Interactive Multimedia. On the Britannica Encyclopedia I found a definition that helps me understand them use in terms of user experience:

"Interactive media, also called interactive multimedia, any computer-delivered electronic system that allows the user to control, combine, and manipulate different types of media, such as text, sound, video, computer graphics, and animation. Interactive media integrate computer, memory storage, digital (binary) data, telephone, television, and other information technologies. Their most common applications include training programs, video games, electronic encyclopaedias, and travel guides. Interactive media shift the user’s role from observer to participant and are considered the next generation of electronic information systems.

The degree to which media is interactive may be seen on this graph, achieving its maximum level in an ascending diagonal line, for which animation is an example :

We also learned different terms regarding data, image resolution and different formats that I will briefly define below, that are also explained in more detail here:

Bitmap (raster) : describes a type of image that web-users encounter all the time without realizing it. Basically, it’s a grid where each individual square is a pixel that contains color information. The key characteristics are the number of pixels (or squares in the grid), and the amount of information in each grid square (pixel). 

Raster: Raster graphics are bitmaps. Raster graphics render images as a collection of countless tiny squares. Each square, or pixel, is coded in a specific hue or shade. Individually, these pixels are worthless. Together, they form a unit.

Vector: a vector graphic is artwork made up of points, lines, and curves that are based upon mathematical equations, rather than a solid colored square pixels. This means that no matter how large or small or how close you zoom in on the image, the lines, curves, and points remain smooth.

 Here we can see the differences between Vector and Raster graphics that are very well explained on this website. When I was studying Fine Arts I used photoshop a lot of the time and I really appreciated Vector Images for their scalability that did not hinder the quality in any way.

These are Raster Image File formats, which I use often and I'd like to share a list of them here. These are two short lists of examples both Compressed or Uncompressed Raster Image files. Generally speaking high quality images will take up space, so storage issues must be thought of in advance. It is interesting when dealing with images to take into account their aim. Storage space is not unlimited although we might think so: 

COMPRESSED 

●GIF (WEB)
●JPEG / JPG (PRINT)
●PNG 
●TIFF 
●...
 
 UNCOMPRESSED 
●BMP 
●RAW
●PSD
●...

We also learned about different sound and video formats differnciating between compressed and uncompressed files whic logically compromises quality. This is a resource of the BBC for the GCSE currilculum where this is explained.

 
 

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Lesson #11 Personal protection and Data protection

Image
  This is our last lesson and it involves Personal Protection and Data protection . It is one of the most important issues to consider when using any kind of device. As educators we will have an important role and our knowledge on internet safety is essential. Also it must be constinously updated due to rapid changes in internet use and behaviour. Here are some guidelines to keep our navigating space safe We should always be on guard. Some elements to bear in mind are the following to keep track of the security in our devices: 1. Control measures : •Device access: Unlock code, facial recognition, visual pattern, fingerprint. •Shared data: Bluetooth, manage location •Remote in case of theft or loss •External memory 2. The importance of security patches and updates :           •Malware: Malicious program that seeks to obtain personal data and money. •Antivirus and Malware Detection Tool 3. Backups: •Use an external disk. •Through synchroniz...
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