This document discusses information and communication technology (ICT). It defines ICT as the technology used for information processing through electronic computers, communication devices, and software applications. It then briefly describes the evolution of computers from first to fifth generations, noting key developments like the creation of the transistor and microprocessor. It also lists some common uses of ICT in education, banking, industry, e-commerce, and other sectors. Finally, it discusses computer security and threats like malware, hacking, and natural disasters, emphasizing the importance of security measures like antivirus software, encryption, and data backup.