# Transaction Processing Management System

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{{Short description|Online transaction processing superstructure software}}
{{Use dmy dates|date=April 2022}}
{{One source|date=July 2025}}

'''Transaction Processing Management System''' ('''TPMS''')<ref>{{cite web |title=ICL - VME 2900 - Implementing a Transaction Processing System (TPMS 320) - Manual - Computing History |url=https://www.computinghistory.org.uk/det/39806/ICL-VME-2900-Implementing-a-Transaction-Processing-System-(TPMS-320)/ |website=computinghistory.org.uk |access-date=1 July 2025}}</ref> is an [online transaction processing](/source/online_transaction_processing) superstructure software from [ICL](/source/International_Computers_Limited) (now [Fujitsu Services](/source/Fujitsu_Services)) that runs on their [VME](/source/ICL_VME) mainframe computers. The first versions were released in the mid-1970s and were sold worldwide.

==Structure==
The service runs in at least two [Virtual Machine](/source/Virtual_Machine)s (VMs)
*a Control VM (CVM), responsible for connecting, disconnecting terminals and routing messages
*one or more Application VMs (AVMs), responsible for all application processing - receiving input messages and returning output messages.

==References==
{{Reflist}}

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Category:International Computers Limited

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Adapted from the Wikipedia article [Transaction Processing Management System](https://en.wikipedia.org/wiki/Transaction_Processing_Management_System) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Transaction_Processing_Management_System?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.