IBM Mainframe Operating Systems: Timeline and Brief Explanation for the IBM System/360 and Beyond
IBM Mainframe Operating Systems: Timeline and Brief Explanation For the IBM System/360 and Beyond Dave Morton Version 37.2 - December 2014 2 Contents Page (approximate) • 3 Short Introduction, IBM Motto and Logo • 4 Pictures • 7 Hercules Notes • 8 Brief History of the System/360 • 10 Summary of IBM Mainframe Operating Systems • 11 Emulators and Simulators for 14xx/70xx Computers • 12 Operating System Progressions • 13 Dates • 15 Program Products Statement (licensed products) • 15 DOS/360 History • 16 DOS, TOS, BOS, BPS • 18 OS – PCP, MFT, VS1 • 20 OS – MVT, VS2, SVS, MVS, Z/OS • 25 VM - Virtual Machine • 26 TSS - Time Sharing System • 26 ACP and TPF – High Volume Transaction Processing • 27 Miscellaneous Operating Systems: OS/44 and PS/44. IX/370 and AIX (IBM's version of Unix). • 28 Non-IBM Operating Systems Running on IBM or Other Mainframes: MUSIC, MTS, Unix, Telpar, ORVYL, VP/CSS, UTS, PICK/370 • 30 Some Components and Features • 41 Mainframe/PC Comparisons (for PC People NEW to Mainframes) • 68 Additional Links • 69 Acknowledgements and Credits • 69 Where to send comments Updates: 37.1 - NovemBer 2013. Additional credits and links added for Hercules contriButors and others. 37.2 - DecemBer 2014. A stronger note written regarding Hercules, that it is not for NewBies. It never was!! NewBies install Hercules, it doesn't work, then join the Hercules groups and ask thousands of questions of the memBers. "What is a mainframe?? What is JCL?? What does ABEND mean?? What is a PROC?? Why is there air?? Where am I??" Do they walk upside down in Australia?? Do Penguins fly??".
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