Turbo BASIC

Turbo BASIC is a Environnement of development integrated which was published by Borland International (version 1.0 is appeared in 1987 in France). This environment allowed to program in language BASIC.

Contrary to the other environments BASIC of the time, which were very often interpreters, the Turbo-BASIC offered the great advantage of being able to compile a program BASIC directly on Hard drive or Disquette. One could then obtain a achievable Fichier for MS-DOS usable independently. During the phase of development, the compilation could be carried out in the memory of the Ordinateur.

The Source code was safeguarded in the form of a Textual file (extension .BAS) and could thus be easily open by others programs.

The BASIC supported made it possible to be freed from the problem of the numbers of lines and also offered labels for the connections (like the Goto).

The Turbo-BASIC also offered a practical interface in Mode text colors with a system of windows (editor, messages, execution, trace). (the orders were the same one as those of the text editor Wordstar)

Example of source of program Turbo BASIC:

INPUT " Which is your nom" ; A$
PRINT " Hello " ; A$
  
C
 
 
  INPUT " How much stars you want " ; S
 
 
  FOR I = 1 TO S
    S$ = S$ + " *"
  NEXT I
 
 
  PRINT S$
 
 
  C 
    INPUT " Want you more étoiles" ; Q$
  LOOP WHILE LEN (Q$) = 0
 
 
  Q$ = LEFT$ (Q$, 1)
 
 
LOOP WHILE (Q$ = " O") HOWEVER (Q$ = " o")
 
 
PRINT " Goodbye " ;
 
 
FOR I = 1 TO 200
  PRINT A$; " " ;
NEXT I
 
 
PRINT
end

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