34. Lower-case commands
    ~~~~~~~~~~~~~~~~~~~
You will know that whereas VDU and PRINT are BASIC keywords, vdu and print
are not. However, with the MOS 'Star' commands, *FX, *SAVE, *DELETE etc.,
lower-case is treated the same as upper-case. Thus *fx0 and oPt1,2 are valid
commands. Further to this, disc filenames, though not cassette filenames, are
treated in a similar fashion. Thus if you save a program as "sneaky", it
appears in lower-case in the catalogue, but you can reload it as "SNEAKY" if
you wish, and any attempt to save a program called "SNEAKY" would overwrite
the lower-case one.