Backspace (ASCII Code 08), Carriage Return (ASCII Code 13), Horizontal Tab (ASCII Code 09), and Line Feed (ASCII Code 10) are some examples of non-printable characters.

Using an OS/390 PDSE for ASCII HTML Output /* Allocate a PDSE for the HTML Output. */ filename pdsehtml '.example.htm' dsntype=library dsorg=po disp=(new, catlg, delete); /* Specify the files to ...

For example, the ASCII code for uppercase A is 65 and for lowercase a is 97. Most computers use ASCII codes to represent text, which makes it possible to transfer data from one computer to another.

C Cursor Forward (n=1) Move cursor forward by n D Cursor Back (n=1) Move cursor back by n E Cursor Next Line (n=1) Move cursor to the beginning of the line n lines down F Cursor Previous Line (n=1) ...

in which case, I guess Ctrl keys are something that came after the ascii standard and aren't part of it. but it's not just the control keys. It is using character 26 as EOF, when in ascii it's SUB ...