have two manuals which may be useful for those involved in active work on mainframe retro computing. Both have been preserved and are available on the Internet Archive so there is no concern there. I will happily mail them media mail with the USA. I prefer not to mail internationally because of postage and declarations but would consider it. Please reply directly off-list as I am not monitoring IBM-MAIN.
IBM System/370 Principles of Operation Publication Number GA22- 7000-10 September 1987 https://archive.org/details/bitsavers_ibm370prininciplesofOperationSep87_37959168 and MVS/Extended Architecture Overview C28-1348-0 Fnt Edition (March, 1984) https://archive.org/details/bitsavers_ibm370MVSXedArchitectureOverview198403_4895210 Please drop me an email and let me know you are interested. I continue to downsize and paper manuals are slowly getting squeezed out. Be well all! Best Regards, Sam Knutson CBT Tape (free z/OS Utilities part of Open Mainframe Project) https://www.cbttape.org/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
