7 Oct
2007
7 Oct
'07
4:10 p.m.
dwight elvey wrote:
That is why I said floppy controler chips. A board of TTL vs 1 chip
on uprocesser. BTW what computer uses 20 bit words?
Date: Sun, 7
Oct 2007 08:49:56 -0600> From: bfranchuk at jetnet.ab.ca> To: > Subject: Re:
these RTL or what?> > Allison wrote:> > > Does it really makes that much
differnce the number of bits for a char?> > Really, Six bits was kinda tight for
work where upper or lower case> > was used but it didn't affect calculating Pi
to a 100 places.> > Wasn't the basic chunk 9 bits for PDP10 and it happened (DEC
> > software) used 6 bit char notation as a carry over from earlier > > life
with friden flexowriter and TTYs on earlier machines?> > Floppy disk is 8 bit I/O.
That made all the difference when standard> floppy disk controlers came out. Ben.>
Hi
Actually there is nothing in the floppy disk drive that cares
about byte size or anything else. It is entirely a function of the
controller. I have a machine that has floppies and it writes 20 bit
words. The floppy is just a bit serial device and could care less
about where you choose to partition it. Dwight
Ben.