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A comment on The Next Vulnerability: Looking Back on Meltdown and Spectre One Year Later. Parent comment

Re:The Next Vulnerability: Looking Back on Meltdown and Spec... by gpderetta on Saturday February 09, 2019 @11:41AM (#19123186)
More like 4 decades. OoO itself is about three decades.
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Re:The Next Vulnerability: Looking Back on Meltdown and Spec... by vardump on Saturday February 09, 2019 @02:59PM (#19124246)
Yup. OoO is a thing from the mid-nineties for us mere mortals. CPUs like Pentium Pro and AMD K5. Of course the first out-of-order CPU is way older CDC 6600, back from 1964.

MIPS R2000 from 1986 could do simple form of speculative execution.

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