See all articles from Timelinez v2 n10
ON ERR technique for the TS2068 to prevent accidental BREAKing of a running program, with an improvement: a secret password subroutine (lines 9000–9090). ON ERR RESET is triggered only when the user types the correct password string (with debounced INKEY$ accumulation), allowing authorized BREAKing while keeping untrained users locked out. Useful for programs handling sensitive payroll or financial data. Includes full BASIC listing.