Busses vs no busses

From: allisonp <allisonp_at_world.std.com>
Date: Tue May 9 19:45:39 2000

>Bill said
>> ...a distant decendant of the DEC CI780 and HSC50
>> disk interface SDI cable.


That and the C64 serial bus, Epson PX-8 serial bus, Appletalk interconnect.
Even I did a simple two wire bus for interconnect back in the early 80s.
Firewire and USB are nothing new save for they are fast and cheap.

>CI780 =? Cluster Interconnect ??

Yep

>HSC50 =? Heirarchic Storage Controller ??


Yep yep.

>SDI =? No Freakin' Clue. ??? Help!


Strategic defense inititive... Storage domain interface... I forget.

They did have onthing in common serial buses that ran at very high speeds
as a simpler interconnect that could span significant distances. Even
eithenet
has been used that way.

To revisit a earlier point S100 ws not a simple bus, crude yes, not simple.
The cpu in the raw was on the bus so you had to do a lot of cycle decoding
and grabing the right lines. If it had been done right the odd pins would
have been all grounds and the bus would have ended up looking like multibus
or STD.

A simple bus would be SS50, much better in some ways and easier to interface
to.

Allison
Received on Tue May 09 2000 - 19:45:39 BST