...
GN_Nln, send newline (CR/LF) to standard output (deprecated)
GN_Soe, write string at extended address to standard outputoutput (deprecated)
GN_Sop, write local string to standard output, local memoryoutput (deprecated)
OS_Bout, write string at extended or local address to standard output (fast block display, OZ V4.2 and newer)
OS_Hout, write a hexadecimal byte to std. output (OZ 4.5 and newer)
OS_Nln, send newline (CR/LF) to standard output (OZ 5.0 and newer)
OS_Out, write character to standard output
OS_Pout, write embedded string at PC to standard output (fast block display, OZ V4.2 and newer)
OS_Hout, write a hexadecimal byte to std. Prt, output character to printer
OS_Sout, write local string to standard output (OZ 45.5 0 and newer)
OS_Prt, output character to printer
Screen
OS_Map, high resolution graphics manipulation
OS_Sr, save & restore screen file
OS_Sci, low level screen hardware interface
OS_Nq, fetch low level window information settings, System parameters
OS_Sp, set Panel and PrinterEd values
GN_Win, Generic Window create interface
...