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(Save Screen) mnemonic (SB) mnemonic Scan Codes (Scan Codes Off) mnemonic (Screen) mnemonic Screen Colors Screen formatting SECURE statement Security SELECT statement (SelectFont) mnemonic (SelectHatchBrush) mnemonic (SelectPen) mnemonic (SelectSolidBrush) mnemonic (SelectSysFont) mnemonic Semicolon (;) Sending a message to all terminals Sending a message to another terminal Sequential file SET directive (SetBkColor) mnemonic (SetBkMode) mnemonic (SetOrientation) mnemonic (SetPaperSize) mnemonic (SetTextAlign) mnemonic (SetTextColor) mnemonic (SF) mnemonic SGN function (Shell to DOS) mnemonic (ShellExecute) mnemonic (Show Cursor) mnemonic (Show Mouse Cursor) mnemonic (Single Key Transmit) mnemonic Skip n lines (SL=n) mnemonic Slash sign (/) (Spool Message) mnemonic Sort gateway Sort ascending in memory Sort ascending sort/merge Sort begin sort/merge Sort descending in memory Sort descending sort/merge Sort move pointer to top Sort record length

Source Program Divisions SOURCE command Special characters (compiler) Special Characters (in MTB source code) (Spool Message) mnemonic SQRT function Square root (SSB) mnemonic Start background (SB) Start foreground (SF) Start suppressed background (SSB) Statement Continuation Statement labels Statement Summary Status function (STS) (Std Keyboard Off) mnemonic (Std Keyboard On) mnemonic STOP statement STR function String Operations STRING function STRIP function STRIPL function STRIPR function STS function SUB function Subprograms Subroutines Subscripted variables (arrays) Subtraction SWAP function (Switch Session) mnemonic Symbolic constants (SET directive) Symbolic constants, system SYSPART$ system variable System date System driver (X00) mnemonics System time System symbolic constants System variables System variables (chart) SYSTEM parameter, ERRORSUB SYSTEM parameter, ERRORTO SYSTEM parameter, ESCAPESUB SYSTEM parameter, ESCAPETO