the first hard disk was made available for macintosh computers on september 17, 1985.
the first hard disk was made available for macintosh computers on september 17, 1985.
when was the first hard disk is made available for macintosh computers?
september 17 , 1985
the macintosh hard disk 20 was the first hard drive developed by apple computer specifically for use with the macintosh 512k. introduced on september 17, 1985, it was part of apple's long-awaited solution toward completing the macintosh office (a suite of integrated business hardware & software) announced in january 1985. it would be over a year more before apple would release the file server software appleshare that would link all of the hardware together. by that time the scsi interface introduced on the macintosh plus in january 1986, would accommodate far faster and more efficient hard drives, rendering the hard disk 20 virtually obsolete.
hard disk 20
hard disk 20sc









































the apple hard disk 20sc (not to be confused with the apple macintosh hard disk 20, the first hard drive manufactured by apple computer exclusively for the original macintosh floppy disk drive port interface) is apple's first scsi based hard drive for the apple ii family as well as the macintosh and other third party computers using an industry standard scsi interface.









































section::::history.
hard disk 20sc