sizes (was Re: vacuum tube computer)

From: Dwight Elvey <elvey_at_hal.com>
Date: Mon Feb 1 16:28:50 1999

Eric Smith <eric_at_brouhaha.com> wrote:
>
> A little-known fact about the CD format is that it was specifically designed
> (in the mid to late 1970s) so that a minimal player does not necessarily need
> a microprocessor. A few early prototypes were developed that had no
> microprocessor, but AFAIK all production CD players did in fact have one.
>
> Eric

Hi Eric
 Building analog filters of the quality needed to do CD's
is going to be some trick. Even many early designs used
switched capacitor filters to get the needed responses.
Tubes as digital multipliers would require massive
amounts of parallelism to keep up.
IMHO
Dwight
Received on Mon Feb 01 1999 - 16:28:50 GMT