Amdek Disks and Drives

Hey, I was wondering if anyone could give me more info on some stuff. I have bought a HUGE lot of old computer stuff, and part of it is a slew of Amdek disks and disk drives. One of the Amdek drives says Atari computer ( I think...I still have yet to get all this stuff to the house, much less sort through it....gonna be a great weekend of fun :-D) Anyway, whats the deal with Amdek? I have quite a few drives, and a bunch of disks! What was their main purpose? For just Atari, or IBM? Also, what is their capacity? The disks look neat, and rugged...I am hoping that they will still work :-) Anyway, this bunch of stuff came with lots of parts too...sealed keyboard boards for different systems and such. I think that this came out of somebodys old computer repair place. Even has some replacement doohickeys for dot matrix printers. Im still sorting this stuff out. Ill let yall know more as I go along! Mark