Electronics > Projects, Designs, and Technical Stuff

Harddrives - nice pictures

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Noopy:
Hi all,

I did some high resolution pictures of two old WD Caviar harddrives (22100 and 22500).



Of course with some die Pictures too.  8)



If you are interested go to:
http://www.richis-lab.de/HDD_WD_Caviar_22100.htm
http://www.richis-lab.de/HDD_WD_Caviar_22500.htm

Text is german...  :scared: ;D

Have fun! :popcorn:

Greetings,

Richard

simxdx:
 :-+,Very clear pictures!

Miyuki:
Nice pictures  :-+

Wonder how much tinier is reading head now in Terabyte sizes and how weak signal it produces compared to back then

Noopy:
Thanks!  8)

I have some newer models lying around here.
Coming soon...  :-/O

I don´t know if you can compare the signals of an old device to a newer one. The technology changed a lot as far as I´m informed...

pwlps:

--- Quote from: Miyuki on May 15, 2019, 04:46:44 am ---Wonder how much tinier is reading head now in Terabyte sizes and how weak signal it produces compared to back then

--- End quote ---

The signal is not so much smaller, in fact it was rather the progress in the reading head technology (AMR,GMR,TMR...) giving more signal strength that allowed increasing areal density.  For example the development by IBM of new heads based on the GMR effect in the 90's allowed to break the technological limitations of the previous AMR generation  (still used in WD Caviar models, WD acquired the GMR technology from IBM circa 1998).

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