IBM System/370

[WIP]
Even though "virtual storage" was heavily advertised, the first models in the series didn't come with this feature. IBM implemented it on a different series first, possibly for marketing reasons only. However, the other advertised ability to update from a floppy disk was included. So, older models could be easily updated with virtual memory when it was provided by IBM months later. The virtual storage feature was most useful for backwards compatibility, such as running software and operating systems make for the S/360 series.

Announced for 1970-06-30 but not delivered until 1971-01.
1972-80-02 virtual storage feature was made available. Subsequent models came with the feature, older models could be upgraded.

IBM System/370 Model 155
IBM System/370 Model 165
IBM System/370 Model 145
IBM System/370 Model 195
IBM System/370 Model 125
IBM System/370 Model 135
IBM System/370 Model 138
IBM System/370 Model 148
IBM System/370 Model 158
IBM System/370 Model 168
IBM 3033
IBM 3032
IBM 3081
IBM 3082
IBM 3084
IBM 3090
IBM 4300
IBM 4331
IBM 4341
IBM 4321
IBM 4361
IBM 4381
IBM 9370

Clones:
UNIVAC 9000
RCA Spectra 70
English Electric System 4
Soviet ES EVM
Amdahl Corporation 470 series

These companies also made clones:
Fujitsu
Hitachi
Magnuson Computer Systems
Mitsubishi
Siemens
Two Pi Corporation

Many of the later models of 370 series (30XX, 43XX, 93XX) can run GNU+Linux and are used for compiling using GCC.