Mathematical basis of IT – number systems, logic operations. Hardware – short history of personal computer, types of computers, components of computers (what they are, how they work, choice of components, performance of components and the impact on the system, basic problems and solutions), peripheral devices (monitor, mouse, printer, scanner, uninterruptable power supply). Software – Application software, AS types (commercial, open code), selection of AS (versions, copy rights, licensing), examples of AS (text editors, text processors, composite tables, presentations, Google maps/earth), development environment (phases of software development, html, java script, kml/kmz), GUI/terminal shel, types of users (the role of the end user, administrator, programmer). Communications – LAN/WAN, intranet/internet, services (mail. http, ftp, chat, social networks). On-line resources – Indexes, libraries, sources of spatial data.