This report provides a comprehensive analysis of the impact of Information Technology (IT) on Barclay Bank's performance. It begins with an introduction to IT and its significance in business, followed by a literature review that explores the roles of IT in business success and failure, ethical and social issues in business, different types of networking technologies, the importance of social media, and the stages of the software development life cycle. The analysis and discussion section examines the role of IT in Barclay's performance, ethical and social issues within IT, and the contribution of social media. The report highlights how IT enables global reach, enhances customer service, and improves data handling while also addressing potential risks such as security breaches and misleading information. The report underscores the need for Barclay to integrate IT services responsibly, considering ethical and implementation challenges. The report concludes with a summary of key findings and includes a list of references.