Was 2021 Really the End of IBM’s AS/400? Nope. Why is AS/400 still used? Four reasons to stick with a classic. https://lnkd.in/gUg8T4Mg. I am still surprised by how many orgs out there still use AS/400. We make our students take an ERP class & we use SAP (around 1/2 the orgs that recruit our students use SAP)....