This report provides a detailed IT infrastructure plan for Priority Advertising Organization, a growing digital advertising company with offices in Brisbane and Toowoomba. The report begins with an executive summary and introduction outlining the company's needs and objectives. It then reviews the current IT resources, highlighting the need for an IT department, upgraded hardware, and improved network infrastructure. The technical solution section proposes various computer systems for general use, graphics design, and film production, along with server specifications for email and FTP requirements. It also includes a network logical diagram, shared hardware equipment details, ISP service recommendations, subnetting and addressing plans, and security considerations. The report concludes with recommendations and a conclusion, providing a comprehensive overview of the proposed IT infrastructure improvements to support the company's growth and operational efficiency. The assignment covers topics such as network design, hardware selection, server configuration, and security measures.