rural center for management informatics and, importantly, dean of the moscow state university faculty of computational mathematicsey are it people. here is some classification. we can say that today we are all it people, as soon as we had smartphones, in which we now have them, we all had to be able to use tools, information technologies, to be able to use these gadgets to understand how they work. otherwise, we simply will not fit into the modern rhythm and lifestyle with those people who have associated their profession with this phenomenon with these technologies. with these tools, which actually create them, these technologies, including those created, of course this, i think, is the most, of course, the fundamental layer of it people who develop methods in our time, they were called engineers. engineers, including, i think i still mean scientists scientists, who are scientists who, on the basis of fundamental mathematical results of deep penetration into these mathematical results, create those methods that then turn into technologies into tools. here, which we use the other layer - these are the people who