LESSON 11: Personal Protection and Data Protection

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LESSON 9: Innovative and Creative use of digital technology

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In this lesson, we have learned about different types of multimedia content.

Multimedia is the integration of text, images, graphics, videos, animations, sounds and any other media that can be processed digitally, using a computer system as support, through which these elements are presented. To correctly use multimedia we need to learn to distinguish between the different types of media available.


We can classify them based on their nature and origin, like in the picture below:



On the other hand, digital images are classified into two types:
  • Pixel-based. Each pixel is assigned a color. The image quality is linked to the resolution (number of information points per inch that are captured from the image), so the higher the resolution the better the image quality will be.
  • Vector images: Originating from shapes (bézier curves, polygons, which have different associated attributes) defined mathematically, they are independent of the resolution, therefore when increasing their size they will not suffer pixel effect.

Digital techonologies can be divided as follows: 
  • Text.
  • Images are characterized by bitmaps (rectangular grid of pixels) and we find different formats, depending if we want them to be compressed or uncompressed. Nonetheless, images can also be formed of vectors, which are very useful if we don't want to lose quality. 
  • Graphics.
  • Videos.
  • Animations. 
  • Sounds are also classified in different formats depending on the quality. 

Images can also come in different formats:

  • Bitmat formats: JPG, GIF, PNG, TIFF, RAW, BMP, PSD...
  • Vector formats: PDF, PS, EPS, SVG and AI

We also saw some video formats (MPEG H.264, MPEG-4, DIVX, FLVo SWF, AVI, WMV, 3GP,  XVID, etc) and sound formats (WAV and AIFF, FLAC - free, ALAC, APE, MP3, AAC, OGG vorbis - free, WMA, etc).

For the practical work we need to do:

1. Search the software in MyApps

2. Click on the software icon

3. Go to the downloads folder and double click on the icon of the downloaded software, if it asks you which program to open it with, choose "vWorkspace"

4. And choose Gimp to start practing.



In these two pictures you can see the final work and the results about this lesson:





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