Give examples of information systems.

1) reference address service of a large city;
2) transport information system, which provides not only the possibility of obtaining reference information on the timetable of trains and airplanes, but also the purchase of railway and air tickets;
3) an information retrieval system containing information of a legal nature.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.