Micropolis Corporation (styled as MICROPΩLIS) was a disk drive company located in Chatsworth, California and founded in 1976.

[1] Micropolis pioneered 100 tpi density because of the attraction of an exact 100 tracks to the inch.

Micropolis entered the hard disk business with an 8-inch hard drive, following Seagate's lead (Seagate was the next company Alan Shugart founded after Shugart Associates was sold).

[3] After the disk business sale, Micropolis was reorganized as StreamLogic Corporation, which declared bankruptcy in 1997 amid securities fraud allegations.

Its VIDEON video on demand technology was sold to Sumitomo Corporation.