Enterprise System/9000 (ES/9000), as in 360 for 1960s, 370 for 1970s. Enterprise Systems Architecture/390 (ESA/390) was IBM's last 31-bit-address/32-bit-data
The IBMSystem/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970. The series mostly
The IBMSystem p is a high-end line of RISC (Power)/UNIX-based servers. It was the successor of the RS/6000 line, and predecessor of the IBM Power Systems