The modern world is full of all sorts of new products: science, technology, medicine. People probably never possessed such a sum of knowledge in various fields. Amazing things and phenomena surround us. Today, figuratively speaking, you can get news out of your pocket, connect to a network that exists only in the information field, and send a message to a person who is thousands of kilometers away from you. Thanks to information technology, we can meet people who live far, far away, in other countries and cities.