David Murray (The 8-Bit Guy) explains how my generation got started in computers — Beginners All-purpose Symbolic Instruction Code. For more information on BASIC go to (GOTO) Wikibooks for books and Calormen (JS Basic, to run the code below).
10 REM http://www.calormen.com/jsbasic/ 20 INPUT "What's your name?"; name$ 30 PRINT "Hello, "; name$; 40 INPUT ", how are you? (OK/Not)"; ok$ 50 IF ok$ = "OK" THEN PRINT "Glad to hear that." 60 IF ok$ <> "OK" THEN PRINT "Too BAD!"