24 Oct
2024
24 Oct
'24
3:47 p.m.
Impressive claims were made about station wagon full
of tapes hurtling
down the highway.
That was Jim Gray's favorite way of illustrating the difference between
bandwidth and latency when discussing e.g. high speed networking.
Nowadays, of course, it would be a Chevrolet Suburban full of 1 TB
micro-SDXC cards.
Micro-SD volume[1]: 21.5 mm × 20 mm × 1.4 mm = 0.000602 liters
Suburban cargo volume[2]: 144.7 cu ft = 4097.4477 liters
# TB = # cards = 4097.4477 / 0.000602 = 6,806,392 TB = 6.5 EB
[1] https://en.wikipedia.org/wiki/SD_card#Physical_size
[2] https://www.chevrolet.com/suvs/suburban
On Thu, Oct 24, 2024 at 3:26 PM Fred Cisin via cctalk <cctalk(a)classiccmp.org>
wrote:
> On Thu, 24 Oct 2024, Chuck Guzis via cctalk wrote:
> > How about Tymshare/Tymnet/SBC....etc.
> >
> > Did Call Computer in Mountain View employ a file transfer protocol for
> > use by subscribers?
>
Impressive claims were made about station wagon full
of tapes hurtling
> down the highway.
>