The copy of SD.COM on this disk is configured for a 3 drive
system with a 24 line terminal. No video attributes are used.
The following locations are available to configure this program for
your system.
104H maximum number of drives
105H fence character used in display
106H number of columns
107H number of lines on screen
108H-10BH string to clear the screen, null or hi bit terminated
10CH-113H string to turn on terminal hilite, null or hi bit terminated
114H-11AH string to turn off terminal hilite
0E69H-0E89H initialization subroutine, to determine video type etc.
