Linked by Thom Holwerda on Wed 29th Aug 2012 12:07 UTC, submitted by MOS6510
Hardware, Embedded Systems "n the fall of 1977, I experimented with a newfangled PC, a Radio Shack TRS-80. For data storage it used - I kid you not - a cassette tape player. Tape had a long history with computing; I had used the IBM 2420 9-track tape system on IBM 360/370 mainframes to load software and to back-up data. Magnetic tape was common for storage in pre-personal computing days, but it had two main annoyances: it held tiny amounts of data, and it was slower than a slug on a cold spring morning. There had to be something better, for those of us excited about technology. And there was: the floppy disk."
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3.5" floppy capacities
by mrAmiga500 on Wed 29th Aug 2012 22:25 UTC
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The article says "The first 3.5” disks could only hold 720K". Actually, the first 3.5" disks were 400K (Mac formatted). They then quickly went DD (double density) - 720K on PC, 800K on Mac, 880K on Amiga - same disk, but different capacity depending on filesystem. It doubled again with HD - 1.44Mb on PC, 1.6Mb on Mac, 1.76Mb on Amiga.

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RE: 3.5" floppy capacities
by MOS6510 on Thu 30th Aug 2012 09:56 in reply to "3.5" floppy capacities"
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IIRC there was a tool (on the Amiga) to use some extra unused tracks on the disk to increase the capacity.

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RE[2]: 3.5" floppy capacities
by zima on Fri 31st Aug 2012 06:05 in reply to "RE: 3.5" floppy capacities"
zima Member since:

Also & its See also

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