1. 7.1.BASIC
   1. 7.1.1. THE BASIC ENVIRONMENT
      1. 7.1.1.1. STARTING THE BASIC ENVIRONMENT
      2. 7.1.1.2. BASIC COMMANDS
         1. 7.1.1.2.1. NEW
         2. 7.1.1.2.2. LIST
         3. 7.1.1.2.3. RUN
         4. 7.1.1.2.4. SAVE
         5. 7.1.1.2.5. OLD
         6. 7.1.1.2.6. RESEQUENCE
         7. 7.1.1.2.7. SEQUENCE
      3. 7.1.1.3. ALTERING A BASIC PROGRAM
         1. 7.1.1.3.1. SIMPLE CHANGES
         2. 7.1.1.3.2. DELETE
         3. 7.1.1.3.3. EDIT
         4. 7.1.1.3.4. APPEND
      4. 7.1.1.4. VMS SYSTEM COMMANDS WITHIN BASIC
      5. 7.1.1.5. HELP IN BASIC
      6. 7.1.1.6. LEAVING THE BASIC ENVIRONMENT
   2. 7.1.2. PROGRAMMING IN BASIC
      1. 7.1.2.1. IMMEDIATE MODE
      2. 7.1.2.2. PROGRAM STATEMENTS
      3. 7.1.2.3. END STATEMENT
      4. 7.1.2.4. REMARKS
      5. 7.1.2.5. CONSTANTS
         1. 7.1.2.5.1. NUMERIC CONSTANTS
         2. 7.1.2.5.2. STRING CONSTANTS
      6. 7.1.2.6. VARIABLES
         1. 7.1.2.6.1. NUMERIC VARIABLES
         2. 7.1.2.6.2. STRING VARIABLES
         3. 7.1.2.6.3. LET STATEMENT
      7. 7.1.2.7. EXPRESSIONS
         1. 7.1.2.7.1. ARITHMETIC OPERATORS
         2. 7.1.2.7.2. OPERATOR PRECEDENCE
         3. 7.1.2.7.3. CHARACTER STRING OPERATORS
      8. 7.1.2.8. INPUT AND PRINT
         1. 7.1.2.8.1. INPUT
         2. 7.1.2.8.2. PRINT
         3. 7.1.2.8.3. READ / DATA / RESTORE
      9. 7.1.2.9. BRANCHING
         1. 7.2.1.9.1. UNCONDITIONAL BRANCH
      10. 7.1.2.10. SELECTION
          1. 7.1.2.10.1. RELATIONAL EXPRESSIONS
          2. 7.1.2.10.2. SINGLE LINE IF-THEN
          3. 7.1.2.10.3. SINGLE LINE IF-THEN-ELSE
          4. 7.1.2.10.4. MULTI-LINE IF-THEN-END IF
          5. 7.1.2.10.5. SELECT/CASE
      11. 7.1.2.11. LOOPING
          1. 7.1.2.11.1. FOR
          2. 7.1.2.11.2. WHILE/NEXT
      12. 7.1.2.12. FORMATTING OUTPUT
          1. 7.1.2.12.1. PRINT FUNCTIONS
          2. 7.1.2.12.2. PRINT USING
      13. 7.1.2.13. PREDEFINED FUNCTIONS
          1. 7.1.2.13.1. MATHEMATICAL
          2. 7.1.2.13.2. STRING
          3. 7.1.2.13.3. UTILITY
      14. 7.1.2.14. ONE-DIMENSIONAL ARRAYS
          1. 7.1.2.14.1. DIM
          2. 7.1.2.14.2. USING AN ARRAY
      15. 7.1.2.15. SUBROUTINES
          1. 7.1.2.15.1. GOSUB / RETURN
          2. 7.1.2.15.2. TEMPLATE FOR PROGRAM ORGANIZATION
      16. 7.1.2.16. EXERCISES
   3. 7.1.3. PROGRAM DEBUGGING
      1. 7.1.3.1. ERROR TYPES
         1. 7.1.3.1.1. SYNTAX ERRORS
         2. 7.1.3.1.2. RUN-TIME ERRORS
         3. 7.1.3.1.3. LOGIC ERRORS
      2. 7.1.3.2. DEBUGGING EXAMPLE
      3. 7.1.3.3. MAKING SENSE OF SYSTEM MESSAGES
         1. 7.1.3.3.1. SYNTAX ERROR MESSAGE
         2. 7.1.3.3.2. RUN TIME ERROR MESSAGE
   4. 7.1.4. ADVANCED BASIC
      1. 7.1.4.1. TWO-DIMENSIONAL ARRAYS
      2. 7.1.4.2. USER DEFINED FUNCTIONS
      3. 7.1.4.3. FILE INPUT AND OUTPUT
         1. 7.1.4.3.1. OPEN
         2. 7.1.4.3.2. CLOSE
         3. 7.1.4.3.3. WRITING TO A FILE
         4. 7.1.4.3.4. READING FROM A FILE
   5. 7.1.5. EXAMPLE OF A COMPLETE ASSIGNMENT
      1. 7.1.5.1. DOCUMENTATION
      2. 7.1.5.2. INTERNAL REMARKS
      3. 7.1.5.3. VISUAL APPEAL
      4. 7.1.5.4. OUTPUT
      5. 7.1.5.5. EXAMPLE
   6. 7.1.6. BASIC ERROR MESSAGES
      1. 7.1.6.1. TYPICAL ERROR MESSAGES
      2. 7.1.6.2. LOGIC ERRORS
   7. 7.1.7. SAMPLE QUESTIONS