IBM Mainframe Evolution: A New Wave by zEnterprise

This IDC Insights (a translation of the Japanese report IDC #J11220154) explores the latest trends in the Japan mainframe market and considers IBM's market strategies and future problems in this market.

The Japan shipment revenue used in this study is based on Japan Server Quarterly Model Analysis 1Q11 and Worldwide Quarterly Server Tracker 1Q11.

This document refers to the number of server units shipped by vendors (manufacturers) as unit shipment, while shipment revenue refers to the factory shipment value from the vendor (manufacturer).