Exercises 41 and 42

41.- Think you want to print out a photograph with a size of DIN A4: 210 × 297 mm maintaining a printing quality of 200 dpi. Which resolution would the image need?

Solution: To print at 200 DPI on A4 paper, your image should have a resolution of 1654 × 2338 pixels. This ensures the photograph will maintain the desired print quality at that size.

42.- Which resolution would the same picture need to have a 300 dpi picture?

Solution: The image needs to have a resolution of 2481 × 3507 pixels to print at A4 size with a quality of 300 DPI.

Mind map - digital image

Digital security - 2nd problem

 DESCRIPTION OF THE PROBLEM:

I like online games and spend all my spare time playing on the computer and phone. I even prefer playing over going out with family or friends. My parents are all time telling me to organize better my time but I think it is my hobby and does no harm on me.

PROBLEMS THAT CAN BE CAUSED BY PLAYING ONLINE GAMES NON-STOP:

- Online harassment.                                                                 - Online predators.

- Privacy issues.                                                                        - Hidden charges.

- Personal information left on consoles and PCs.                     - Malware.

- Concerns associated with the use of webcams.

The effects that can arise from excessive use of screens in our eyes can range from visual fatigue to an itchy sensation, dry eye disease, starting to suffer from blurred vision or even headaches and eyelid pain.

LINKS:

Click here (information about the risks of online gaming)

Click here (information about the video game addiction)

TIPS TO AVOID THE PROBLEMS:

1.- Use strong passwords.

2.- Use a VPN (which stands for virtual private network, protects its users by encrypting their data and masking their IP addresses).

3.- Keep your software up to date.

4.- Go out with friends.

5.-  Have just a little screen time a day.

You should listen to your parents and not spend so much time with screens, you could go out with your friends and be more organized when it comes to studies and other things that are more important.

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