The document presents a project on replacing the computer systems at ACCMAN INSTITUTE OF MANAGEMENT. It provides background on the institute, established in 2003. The objective is to analyze the condition of the existing 60 computer systems, purchased in 2006, and replace them if needed due to age or increased maintenance costs. Data is collected on maintenance costs from 2006-2011 and calculations show average costs are lowest in 2010-2011, so replacement after 5 years is recommended. Using a new higher-spec configuration could allow increasing the replacement period with lower maintenance costs. In conclusion, replacement theory proves an effective management tool for minimizing costs as machines deteriorate over time.