Well, I never knew that....

[DallasDad]

Don't shoot me but....

I worked for Datapoint between 1989 and 1993.
My office was in Goswell Road EC1
The head office was just off the North Circular in Neasdon.

Datapoint introduced several then ground breaking technologies including Arcnet for example.
I think DOS had some Datapoint heritage as well.
They also were early adopters of line of sight "colour" teleconferencing.

During my time the business was predominately Motor trade systems Ford DARTS for example running on networked clusters of 8600 processors and using an NCR 286 PC as central storage.

Datapoint were leaders in Call Routing, Datapoint ACDs were in most BT switch rooms, e.g. for the 192 service.
Later Power Dialers came along which I guess was the dawn of today's cold calling call (scam)centres, sorry about that

[DallasDad]

For the nippers out there.
Once upon a time in a galaxy far away long before the internet you know today there was the original Arc system that was initially going to be called 'Internet'.

https://www.youtube.com/watch?v=WBH642ZEkHM

And I just remembered during boot the 8xxx range of Datapoint Processors used to boot up with a croaking sound and they continued to go rivet, rivet, until the network was found that sound really was exactly like a frog!