TRS-80 Model I

[Fred Cisin]

On Sat, 3 Feb 2007, Jim Battle wrote:
> By comparison, the apple II controller is brilliant.  Yes, there existed
> disk controllers with DMA, but those were more complex and cost a whole
> lot more in 1977.  Besides, the Apple II had a great expansion bus, and
> some enterprising company could have plopped a 177x disk controller in
> machine at the point it made sense, but apparently it never did as its
> market was happy with what apple offered.

Sorrento Valley Associates?