Data
access
high.
speed of floppy disa is very
Answers
Answer:
Hard disks rotate at high speeds of 5000 through 15000 rpm, depending on how much you pay for them. Floppy disks rotate at 300 to 260 rpm. That’s ‘rotation delay’, how fast the desired sector comes under the read/write head.
Hard disks read/write heads move across the drive’s cylinders/tracks so fast it’s just a twitch. Floppy drive’s head move across the surface very slowly in comparison. That’s ‘seek delay’.
Modern hard disks, spinning so fast, can pick up or write data at rates like 200 or 300 MB per second. Floppy disks, spinning slow, get less than 3 MB per second. That’s ‘transfer rate’.
Floppy drives’ rotation and seek delay are way slow compared to hard disks and so is the transfer rate. Their read/write heads actually touch the magnetic surface and higher speeds would eat it up quickly. Read/write heads on a hard disk fly on a thin layer of air and don’t touch the magnetic surface to they can spin as fast as they can without the metal in the disk flying apart. That’s maybe 5000 rpm for the cheaper alloys used in consumer drives or 15000 for the more expensive alloys used in enterprise class drives.
All these factors make floppies slower than hard disks. Now, solid state drives with no moving parts are way faster than hard disks and I guess hard drives will be obsoleted some time before after I retire as an elder geek.
It’s been at least a decade since I had a machine with a floppy drive installed on it. The last time I had a USB floppy drive in my hands a few years back, I was tickled to see that programs written by kids and stored on floppy disks in a summer camp in 1982 were still readable. And, Intel’s been so good at making processors backward compatible that the code still ran, made a little dog move around the screen with cursor arrows, bark when you hit B, sit when you hit S.
Explanation: