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this post was submitted on 12 May 2024
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Explain Like I'm Five
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If memory serves, arm was developed several decades after the 8088. Arm was intended to be a low power low cost cpu for simple devices that intel had no product to service. Arm and the 8088 were not contemporaneous.
But the ARM architecture is based on the MOS 6502 CPU and it is an almost successor of the Motorola 6800. So the roots are almost from the same time. Had IBM chosen the 68000 instead...
PS: the first ARM CPU was made in 1985. The 8086 is from 1978.
They were all predated by the 8008, launched in 72. It could be argued the later 8000-series (8080,8085,8086,8088) are effectively variations built on the 8008.
That's a lot of development/expertise time.
Didn't the 6502 come out in mid-70's? (I vaguely recall reading about all this many years ago, and how Intel was playing catch-up to Moto and others to some degree in the mid 70's).
Both the Motorola 6800 and the MOS 6502 were created in 1975.