[ih] How long did it take?

Olivier MJ Crépin-Leblond ocl at gih.com
Thu Sep 17 01:35:57 PDT 2026


Services running on TRANSPAC made lots of money.
https://en.wikipedia.org/wiki/Transpac_(data_network)

Kindest regards,

Olivier

On 17/09/2026 06:39, Brian E Carpenter via Internet-history wrote:
> DATAPAC "opened for use in 1976 as the world's first public data 
> network designed specifically for X.25." [Wikipedia]
>
> Canada won, thanks to Peter Cashin and his experience at NPL under 
> Donald Davies. DATAPAC was definitely first in the world, before PSS 
> (Packet Switch Stream) was operational in the UK.
>
> Regards/Ngā mihi
>    Brian
>
> On 17-Sep-26 14:59, Dave Crocker via Internet-history wrote:
>>
>>> If the X.25 service came out in 83
>>
>>
>> It came out earlier than that.  In the NSF meeting that produced CSNet,
>> circa 1981, there was general awareness that X.25 was already
>> commercially deployed.  Most folk thought the proffered services were
>> like the Arpanet's host-host packet service and were quite surprised to
>> hear the, really, what was being sold for customers was X.28/X.29 -- ie,
>> telnet.
>>
>> The initial email-based dial-up CSNet service was the fallback, for
>> initial operation.
>>
>> I don't know when 'raw' X.25 became a viable commercial service. Perhaps
>> that what the above 1983 date meant?
>>
>> d/
>>




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