This presentation provides an introduction to information technology, including the classification of computers, the importance of the internet, and the use of social media. It discusses the various types of computers, such as supercomputers, mainframe computers, minicomputers, and microcomputers. It also highlights the significance of the internet in individual's life and business growth, including improved connectivity, enhanced visibility, and gathering information. Additionally, it explores the usage of social media in businesses, such as free marketing, ease in taking feedback, and increased competition. The presentation includes references for further reading.