Boot disket on data directory you must use letter on caps lock #.COM is the start up object version 0.03v int 21h ah=1 ah=2 ah=9 ah=0ah ah=5 ah=6 ah=8 ah=7 ah=4c ah=0bh int 21h and int F0h are ocupate int F0h is use to emulate int 21h add auto exec on startup to file AUTO.COM add mzload.com than loads mz .exe name LOAD.EXE than dont have relocation relative
are 4 special files file 0 console output screen ,file 1 console input keyboard , file 2 printer output , file 3 com printer and com devices com1, 4 drivers ,files from disk are only suport 10kbytes in size
60k loads com files if you use stack segment relocation