Leccion 2 Sistemas Operacionales

This document provides an overview of information technology concepts. It defines information technology as including hardware, software, and services associated with computer operation. It describes hardware as physical computer components, software as instructions that tell the computer what to do with data, and services as activities that support computer operation. It also discusses different types of computers like mainframes, microcomputers, PDAs, laptops, and desktops. It provides a block diagram of computer system components including input, processing, output, memory, and control units. It reviews key IT terms and concepts. The document concludes with a quick quiz to test understanding of the material.