A fool gets rich with thoughts

ZXNet echo conference «hardware.zx»

From Alexander Kozhemyachenko To All 24 August 2006

Hello, dj--alex I got hold of the 3rd edition of M. Hooke's book "IBM PC Hardware", and on page 450 I come across the following words: > Floppy disk type sensors (only for 3.5" drives) no output signals > form. HD type sensor automatically (regardless of interface > Low Current signal) should reduce the write current when in the HD drive > QD floppy disk installed. Attention, question: how then do 1.44 MB floppy disks with a sealed window work? By analogy with 5.25" HD floppy disks, they should not be recorded, but they work!