010203h, not the correct value which is 7Bh. Most printers support the PC's extended character set. Some machines, like the Apple Macintosh, do not provide native support for the extended IBM-PC character set. However you may obtain a PC font which lets you display the extended character set. Worse still, different machines often use these control codes in different ways.
End of line is a particularly troublesome example.
Apple Macintosh, Apple II, and many other systems mark the end of line by a single CR character. UNIX systems mark the end of a line with a single LF character. Needless to say, attempting to exchange simple text files between such systems can be an experience in frustration. Fortunately, such conversions are rather simple. The rapid growth of the Web has created a need for a new global standard for software.