Microsoft MS-DOS 2.1 (Eagle Computer OEM)
Released in 1985 by Eagle Computer
For Eagle branded computers.

This is a customized version of MS-DOS for the Eagle 1600, Eagle PC,
Eagle PC Plus, Eagle Spirit, and Eagle Turbo computers.

This includes configuration tools for Eagle proprietary hardware, and 
supports the native 800K Quad Density (96 TPI) 5.25" format used by 
the Eagle 1600.

Includes one standard 360K 5.25" disk in raw/WinImage format. 