[ih] Origins of Go-Back-N

[touch at strayalpha.com]

Hi, John,

I don’t know the first instance of go-back-N, but selective repeat (in this case, selective NACK) was used by Edelcrantz in the Swiss countryside optical telegraph in roughly 1800 according to Wikipedia (I’ve seen similar descriptions in a little book the IEEE published on the history of telecom). The details of Chappe’s optical telegraph in France weren’t documented, so may have had similar functions and predate this.

I wouldn’t be surprised if go-back-N had origins near that time or before.

Joe

—
Joe Touch, temporal epistemologist
www.strayalpha.com

> On Nov 14, 2021, at 6:22 AM, John Day via Internet-history <internet-history at elists.isoc.org> wrote:
> 
> I think this came up before, but I am going to ask anyway:
> 
> Can someone point me at the first proposal for Go-Back-N?  When and by whom?
> 
> Is it before or after SDLC, which according to the wikipedia is 1975?
> 
> Thanks,
> John
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