Wang 2200 PCS-II

By June, 1977, Wang had introduced the PCS-II. This was a PCS system that had a dual 5.25" floppy disk system bolted on top of the terminal.

Perhaps the most significant feature was that this was the computer that the 5.25" floppy was invented for. Wang decided that 8" drives would be too cumbersome for this class of machine, so they contacted Shugart for development of the smaller drives and media.