A bit of trivia for this week’s #ThrowbackThursday, any idea what this is ?
#retrocomputing
I’ll post the answer next week.
@ebariaux flippy disk creation tool.
[0]: 5 1/2 floppies
CC: @ebariaux@mastodon.social
@ebariaux A device for GCR (Commodore/CBM) users. Since all Shuggart based systems (CP/M, IBM-DOS..) needed the index pulse and Apple][ was using both sides (afaik) from the start.
https://en.wikipedia.org/wiki/Group_coded_recording
@adorfer Apple II was NOT using both sides from the start
@adorfer (I remember these magic hole punches from the Apple IIgs computer lab at school)
@ebariaux A doubler, which can punch write-unprotect holes into 5.25" disks so that you can use their backside, too.
@ebariaux Oooh, ooooh, ooooh! I know it!!! 
@ebariaux it's a disk doubler!!!
@ebariaux I would like to have one of these (again), although I've been getting by with doing the job manually.
floppy disk notch cutter to let you use both sides of a "single sided" 5.25" floppy disk, or allow you to write to a 5.25" disk that doesn't have the "write permitted" notch
It might be useful for 8" disks but I've never had one of those myself.
@ebariaux fancy, I only had a hole-punch.
@ebariaux : a tool for adding a second side to a floppy.
@ebariaux Turns your Commodore 8050 Drive into a 8250 for pennies! - sort of :)
@ebariaux I just found one of these a week ago when going through my old stuff in storage. Although I don't have any floppies anymore
@ebariaux
looks like a hole puncher for punch cards or something similar
@ebariaux
Diskspacedoubler.
Model: "KATCHUMPF"
Been there, used that.
@ebariaux My guess would be something to punch holes in floppy disks? To convert them to double sided I believe.
@ebariaux my guess is that's a notch punch for floppy disks.
@ebariaux that’s a chonky one there.
@ebariaux I used to just use a regular hole punch when I was a kid, though it was a giant pain and did a crappy job.
I still don't have one, and they're like $60 eBay now for some dumb reason. I did however find *this* at a thrift store a while back, which was something I didn't think existed.
