6502 BASIC or Assembler and Intel 8271/WDC 1770 info req'd
From: Eric Dittman <dittman_at_dittman.net>
>The third-party controllers were most popular on the Model 1, since the
stock
>FDC was SD. There were a few third-party controllers for the Model III
and
>the early Model 4, but they weren't as popular as the 1793 was more
capable.
>The stock Model 1 FDC also had reliability problems that lead to
third-party
>data separator plug-in circuits.
Yep, the M1 data sep was the 1771 internal and that was at best terrible
and WD would tell you that. That lead to the Piggyback card to at least
add a decent data sep. The 1793 came later but was very desirable
as the 35/40track Single sided FD100 or SA400 drives were tiny storage
wise.
Allison
Received on Sun Oct 07 2001 - 17:54:37 BST
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