5150_5155_5160_advanced_diagnostics_2.20.zip | ||
5150_5155_5160_diagnostics_2.05.zip | ||
6025008_PC_Technical_Reference_Aug81.pdf | ||
IBM_5150_Hardware_Maintenance_and_Service_6025072_AUG81.pdf | ||
IBM Basic Reference Second Edition May 1982.pdf | ||
PCBIOS.ZIP | ||
System beep BIOS code.asm | ||
unprotecting BASIC programs.txt |