Ignoring history is even worse.<p>Burroughs B5000 in 1961, with memory safe systems programming in an Algol dialect.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Burroughs_large_systems" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Burroughs_large_systems</a><p>Similar examples can be provided for systems older or of similar age to PDP-11.