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Origins of the 3.5in Floppy Disk [video]
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Re: Origins of the 3.5in Floppy Disk [video]
#12https://ajovomultja.hu/mcd-1-casette-floppy-marcell-janosi?l...
The rigid floppy was invented in Hungary in 1973, patented in 1974 but only in Hungary and Sony have stolen the idea.
Re: Origins of the 3.5in Floppy Disk [video]
#13https://ajovomultja.hu/mcd-1-casette-floppy-marcell-janosi?l... The rigid floppy was invented in Hungary in 1973, patented in 1974 but only in Hungary and Sony have stolen the idea.
Worth noting the inventors in Hungary weren't capable of manufacturing it until the early 1980s.
Sony released their version in 1981.
Re: Origins of the 3.5in Floppy Disk [video]
#14https://ajovomultja.hu/mcd-1-casette-floppy-marcell-janosi?l... The rigid floppy was invented in Hungary in 1973, patented in 1974 but only in Hungary and Sony have stolen the idea.
Worth noting the inventors in Hungary weren't capable of manufacturing it until the early 1980s. Sony released their version in 1981.
They manufactured it starting 1979 -- but they were ready by 1975. It was just politics.
The Japanese visited Járosi for the prototype many times and made a gazillion photos. There's zero doubt where the idea came from. As far as I am aware, Sony have officially recognized the idea came from Járosi and Járosi have acknowledged Sony's actual drive has improved on his.
Re: Origins of the 3.5in Floppy Disk [video]
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Re: Origins of the 3.5in Floppy Disk [video]
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Re: Origins of the 3.5in Floppy Disk [video]
#17Earlier quoted context omitted.
> not so much for burned CD-R. Most of them are full or errors when reading it. David Rosenthal tests this periodically. Most recently he tested in August. Notice the first sentence of the quote: https://blog.dshr.org/2023/08/optical-media-durability-updat... > The drives I use from ASUS and LG report read errors from the CDs but verify the MD5s correctly. I didn't notice them reporting any read errors from the DVDs.…
That's my experience as well. I recently imaged - a collection of CD-Roms attached to a computer magazine, 1999-2001 - my own collection of stuff downloaded or backed up around 2003-2004; most of it on Verbatim DVDs, but some on CD-R or CD-RW (likely also from Verbatim) I had very few read errors, and it was impressive especially considering it's more than 50 CDs and that I never payed too much attention to how they…
> a collection of CD-Roms attached to a computer magazine, 1999-2001
Please upload these disc images to Internet Archive if not included already, so that they can be preserved for the future. Downloads which used to be publicly available might be worthwhile too, but it could be more of a challenge to sort these out.
Re: Origins of the 3.5in Floppy Disk [video]
#18It's a shame that he glosses over 3" disks. They were widely used in the UK of all places throughout the 1980s because Amstrad selected them for their Z80-based office systems. I'd love to know what cheap deal Alan Sugar got with Hitachi to offload old stock that made this happen.
Re: Origins of the 3.5in Floppy Disk [video]
#19I can recollect possessing over 3,000 5.25-inch floppy disks, containing my entire software collection and files. Subsequently, my father procured a 3.5-inch floppy disk drive, and I distinctly remember the considerable expense associated with these acquisitions. Nevertheless, their exceptional convenience for storage was undeniable. I believe I had the original Windows 95 and IBM OS/2 Warp on 3.5-inch disks; each installation required approximately 20 disks.
Re: Origins of the 3.5in Floppy Disk [video]
#20It's a shame that he glosses over 3" disks. They were widely used in the UK of all places throughout the 1980s because Amstrad selected them for their Z80-based office systems. I'd love to know what cheap deal Alan Sugar got with Hitachi to offload old stock that made this happen. https://en.wikipedia.org/wiki/Amstrad_PCW
Not just the Amstrad PCW series, but also the Amstrad CPC home computers as well as the ZX Spectrum +3 (produced after Amstrad bought Sinclair)