Thanks; many turntables of the day did not have the 16 RPM option,
just 33, 45 and maybe 78.
Actual mask ROMs were impractical for most things like this except
large volume applications of several thousand units because of the
setup costs.
On Mon, Jul 8, 2024 at 2:58 PM John R. Hogerhuis wrote
Hi,
I tried twice … but the photo I’ve been trying to post seems too many bytes
even at a 1Kpixel x 1Kpixel size …
The speed is 33-1/3 RPM for the FloppyROMs … If the photo ever makes it, you
can see it on the record, but making the photo small enough to post, all the
text which is dark
The records would been at a standard speed found on any turntable, probably
33 because you could fit more onto the small record. Undoubtedly the
programs would have been cassette files that you would have loaded as such.
I saw a car record player at a car show once. You put "singles", those 7
inch
I'm going to have to see if I can find one; maybe Walt can tell us
more, i.e. the speed and the magazines that used them. I couldn't find
any info except for this snippet from
https://en.wikipedia.org/wiki/Type-in_program
"Some UK magazines occasionally offered a free flexi disc that played
on a t
Yes there was the Crytronics/PCSG ROM Module (attached photo). It can hold up
to six (6) Option ROMs and it has a rechargeable battery pack. It attaches into
the M100 leg holes and plugs into the Option ROM socket. The batterles plug
into the power socket and the wall wort plugs into the ROM Mod
Those are called "Flexi-Discs" and music was even sometimes distributed
that way.
On Mon, 8 Jul 2024 at 11:58, John R. Hogerhuis wrote:
> Here's a picture of floppy rom
>
> https://upload.wikimedia.org/wikipedia/commons/c/c8/FloppyRom_Magazine.jpg
>
> Says 33 1/3 RPM
>
> Meanwhile actual mask "
Here's a picture of floppy rom
https://upload.wikimedia.org/wikipedia/commons/c/c8/FloppyRom_Magazine.jpg
Says 33 1/3 RPM
Meanwhile actual mask "ROMs" are "etched it stone" as it were. I'd guess
they'd be excellent long term storage.
-- John.
On Sun, Jul 7, 2024 at 9:13 PM Mike Stein wrote:
> I don't know about outer space but that was a fairly popular medium
> for distributing audio files including computer programs; they were
> real grooved audio disks similar but smaller than a 45 RPM record but
> on a thin flexible medium similar
