Japan Mainframe Market: By Product Type (Systems (Z systems, GS Series, Clear Path Dorado Systems, Others), Software (Cloud and On-premises), Services); Application (Transaction, ERP, Census, Consumer Statics, Application Development, Operations Management, Testing and Quality, Compliance & Data Protection, Accounting, Payroll Computations); End Users (BFSI, IT and Telecom, Healthcare, Government and Public Sector, Retail, Travel and Transportation, Manufacturing, E-businesses, Others)—Market Size, Industry Dynamics, Opportunity Analysis and Forecast for 2025–2033