This report analyzes the impact of Information Technology (IT) on business operations, focusing on Marks and Spencer (M&S) in the retail industry. It begins with an abstract and table of contents, followed by an introduction emphasizing IT's role in data management, communication, and profitability. The literature review covers computer classifications, IT's impact (including global reach and advertising), ethical and social issues, and the importance of the intranet and internet. The analysis and discussion section delves into the types of computers used by M&S, the specific impacts of IT on the company, ethical and social issues within the context of the business, and the importance of the intranet and internet for M&S. The report concludes with a summary of findings and a list of references, providing a comprehensive overview of IT's significance in modern business operations, particularly within the retail sector. It highlights how IT enables effective communication, data management, and business growth for companies like M&S.