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GN_Gdt, convert ASCII to internal date
GN_Dei, convert zoned format date to internal format
GN_Die, convert internal format date to zoned format
GN_Gmd, get (read) machine date in internal format
GN_Ldm, Country localized date manipulation (OZ 4.5 and newer)
GN_Pdt, write internal date as ASCII string
GN_Pmd, put (set) machine date
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GN_Nln, send newline (CR/LF) to standard output
GN_Soe, write string at extended address to standard output
GN_Sop, write string to standard output, local memory
OS_Bout, write string at extended or local address to standard output (fast block display, OZ V4.2 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. output (OZ 4.5 and newer)
OS_Prt, output character to printer
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