Vintage Micropolis S-100 floppy disk controller card for early S-100 bus microcomputer systems such as Altair 8800, IMSAI 8080, and other Intel 8080 / Z80 based machines.

This controller board was designed to interface Micropolis 5.25-inch floppy disk drives with S-100 bus computers. These early controllers were used in late-1970s microcomputer disk subsystems and supported hard-sectored floppy disks, which were common before soft-sector controllers became standard

Features

• S-100 bus compatible expansion card

• Designed for Intel 8080 / Z80 microcomputer systems

• Interfaces with Micropolis 5.25” hard-sectored floppy drives

• Used in early S-100 disk subsystems and controller setups

• Edge connector for S-100 backplane

• Ribbon connector for floppy drive interface

• Jumper configurable depending on system configuration

Disk Format (Typical)

• Hard-sectored floppy disks

• Multiple sector holes per disk

• Commonly 16 sectors per track

• Typically 256 bytes per