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FDD speed and capacity
- Subject: FDD speed and capacity
- From: "Allen Bong" <sfbong@tm.net.my>
- Date: Sat, 11 May 2002 11:53:11 +0800
- Newsgroups: comp.sys.apple2
- Organization: TMnet Malaysia
- Xref: archiver1.google.com comp.sys.apple2:19484
Something had bugged me for a long time about what are the factors that
control the speed of transferring a file to a FDD and the capacity of the
floppy disk drive in DOS, ProDos and GS/OS.
If Apple II was designed with a faster cpu, would it end up with a DOS
system that transfers a large file to the FDD faster or a disk with a higher
capacity? As the file was written to FDD using the RWTS subroutine which
uses software timing, does it determine the transfer rate? What did
Pronto-DOS and Derversi DOS do to make the transfer faster?
Which has the faster transfer speed ? An Apple IIgs (2.8MHz) with 3.5"
800K using GCR format disk or a 720K DSDD using MFM format running on a PIII
1GHz windoz machine?
If the 6502B was selling at $10 in 1976, Would Woz come out with a DOS that
runs faster or a bigger capacity disk drive?
Allen.