Miscellaneous scans of documents, manuals and printouts related to my 1980s period of employment with Mayne Nickless Payroll Systems who had migrated from Honeywell mainframes to FACOM (aka Fujitsu). They initially used the OS IV/X8 operating system, but in 1987 the OS IV/F4 operating system was added because it was more scalable. Fujitsu mainframes and their operating systems are obsolete, but I found the following archived 1990s vintage PDFs describing XSP (the successor of X8 and FSP) and MSP (the sucessor of F4).

Scans of pages from the manual of the same name.

Scans of pages from the manual of the same name.

Scans of miscellaneous documents related to IBM and the MVS operating system.

Scans of pages of part of the S360 assembler code for a product I wrote that could display and manage the job and print queues on OS IV/X8. Fujitsu did not provide such a product and their staff were stunned when they saw QMAN.

Scans of pages of the ECSPOSE User's Guide (January 1991). ECSPOSE was a product that allowed AIF users on the OS IV/X8 operating system to view and optionally control all aspects of system operation.

The OS IV/X8 operating system did not have any security built into it. I patched the Open SVC binary to call my own Type 2 SVC which performed pre-open authorisation checking. Fujitsu staff pointed out that it was technically not allowed, but they later provided an official patch to support the feature. These are some scans of pages of the manual I wrote to describe the sofware.

VSAM is a flexible direct-access data storage access method invented by IBM (see VSAM). In 1983 I converted every ancient 1970s database in the payroll company to VSAM, thereby increasing performance and shrinking and simplifying the COBOL codebase dramatically. These are scans of miscellaneous pages of documentation and tutorials I presented to company staff about VSAM.