Lesson 11: Personal Protection and Data Protection

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  In this lesson we are going to talk about important tips and information that we need to know when using our computer: Nowadays we use our devices for everything, and they contain a lot of private information that we need to protect against possible cyber attacks. Therefore there are som recommendations that we should consider: - Keep our devices updated. - Use safe passwords (there are websites where you can check how good your password is). - Clean regularly your devices from cookie information. - Try to hide your wifi so that only those who know its name can have access to it. - Beware of spam emails that you may receive and always check the information and the source, to make sure that nobody is trying to trick you.  In addition, because of the importance of technologies nowadays, we also spend a lot of time in front of our computers. This is why there are some recommendations that we should consider: - Maintain a proper posture. - Make sure all elements from your enviro...
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Lesson 9. Develop of digital contents: GIMP

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 17.03.21


THEORICAL PART

In this lesson we will learn how to use digital technology in an innovative and creative way for our teaching. 

Multimedia it is made up of text, images, graphics, videos, animations, sounds and / or 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 have the digital multimedia (Text, Images, Graphics, Videos, Animations, Sounds) and the Interactive multimedia (User, Interaction, Examples: test, social networks, etc).

At the same time, digital images can be 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.

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).

 

PRACTICAL PART

In today's practice, we had to create a post containing the images created in the 2 previous exercises, therefore we had to edit 3 images with GIMP:

GIMP's exercise 1

GIMP'S exercise 2

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