VMCS Manufacturing solution from NCR. It was an entirely que based solution that ran on VRX (mainframe environment). Blisteringly fast. Why? Intelligent use

VMCS Manufacturing solution from NCR. It was an entirely que based solution that ran on VRX (mainframe environment). Blisteringly fast. Why? Intelligent use of queues, single programs that read a que, did something, put results on a que, is how bank software was done, retail software, and many more. Its a simple model that predates OOP but actually entirely consistent with OOP principles. I had privilege to see this in 80s with NCRs manufacturing and retail software, at NCR (my first job) and at there biggest user in NZ (Farmers Trading Co.).