On Thu, 18 May 2017, allison via cctalk wrote:
 On 5/18/17 12:51 PM, Adrian Stoness via cctalk wrote:
  So a 11/03 aka a lsi11 would be to slow for such
things? Such as those
 Heathkit h11 lsi11 macheans? Witch was a hobyist pdp11 for those that are
 unfamiliar with the hearhkits
  
 No,  BBSs were run with 4mhz Z80s...  compared to LSI-11 (H11 or PDP11/03)
 The -11 is a bit faster.  The H11 was not slower, the ram used didn't inject
 bus waits.
 
...and 2Mhz Z-80s.  The first Citadel appeared on a bone stock H-89 with a
pair of hard-sectored floppy drives.  I think Ward's original S-100 box
was that clock or maybe slower, using an 8080.
g.
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