The document discusses the different types of IT lessons offered at a school. It describes lessons on operating systems and computer networks that teach students about OSes like Windows, Linux, and Mac OS as well as older ones like DOS and UNIX. Students learn about network topologies like star, ring, double ring, and bus. Internet applications lessons teach students how to create websites using languages like HTML, XML, and Flash. Database lessons have students make, program, and install databases on servers. Computer graphics lessons provide opportunities for students to do graphics work using good computers and programs.