This document discusses information and communication technology (ICT) and its impact on society. ICT is defined as the use of electronic devices and software to store, process, transmit and retrieve information. The document then covers the evolution of computers through different generations. It discusses how ICT is used in education, banking, industry and e-commerce. It also compares computerized and non-computerized systems. The document outlines some impacts of ICT on society such as faster communication, social problems, lower costs and effective sharing of information. It discusses computer ethics, intellectual property, privacy and cyber law. Security threats to computers like malicious code and hacking are also mentioned.