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Transaction Processing Management System (TPMS)cite-ref-1[1] is an online transaction processing superstructure software from ICL (now Fujitsu Services) that runs on their VME mainframe computers. The first versions were released in the mid-1970s and were sold worldwide.

• Structure

• References

The service runs in at least two Virtual Machines (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.

cite-note-11. ↑ "ICL - VME 2900 - Implementing a Transaction Processing System (TPMS 320) - Manual - Computing History". computinghistory.org.uk. Retrieved 1 July 2025.