There were 3 versions of AIX 1.3, One for the IBM RT, one for the PS/2, and one for the PS/2 RT co-processor(Crossbow). https://ardent-tool.com/AIX_1-3/ https:

There were 3 versions of AIX 1.3, One for the IBM RT, one for the PS/2, and one for the PS/2 RT co-processor(Crossbow). https://ardent-tool.com/AIX_1-3/ https://ardent-tool.com/AIX_1-3/ https://ardent-tool.com/AIX_1-3/AIX_Origions.html https://ardent-tool.com/AIX_1-3/AIX_Origions.html