Ключевые слова: business, caucasian, college, computer, course, covid 19, desk, device, education, education lecture, elearning, electronic, gadgets, home, indoors, internet, laptop, learning, lockdown, man, math, network, new technology, note, online, online lesson, professor, screen, self isolation, smart, student, studying, studying at home, stylus pen, table, tablet, teacher, teaching, touch pad, tutorial, university, university student, using laptop, video, virtual screen, webinar, wireless, work, writing,