OS/2 CP-DOS Boot Disk (v7.68)
Released October 22 1986 by Microsoft
For 386 IBM PC computers

The OS/2 CP-DOS Boot Disk (v7.68) contained a pre-1.0 version of OS/2
built on October 22, 1986.  OS/2 SIZZLE Boot Disk (v7.68.18)

The OS/2 SIZZLE Boot Disk (v7.68.18) contained a pre-1.0 version of 
OS/2 built on January 7, 1987, which was based on an interim source
code fork known as "SIZZLE", the code-name for a collection of
changes intended to improve overall OS/2 performance.  OS/2 SIZZLE
Boot Disk (v7.68.18 DEBUG)

The OS/2 SIZZLE Boot Disk (v7.68.18 DEBUG) was largely identical to 
the previous disk, with the exception of a DEBUG kernel (with 
built-in debugger) and a different assortment of tools.
