BASIC Programming Language Features
Application Areas
The language of BASIC is simple English which can easily be
programmed by anyone. BASIC language was widely used because it can easily be
learned and supported by most of the operating system. A popular version of
BASIC today is QBASIC. Also, BASICs documentation has been translated into many
national languages.
A popular version of BASIC today is QBASIC. BASIC is used in
many business applications and is still considered a valid choice as a
programming language for some purposes. Microsoft's Visual Basic adds
object-oriented features and a graphical user interface to the standard BASIC.
Earlier, BASIC was few among High Level Language running in
the market. The main advantage of High level language over low level language
is that they are easier to read, write and maintain. Now, there are dozens of
HLL running like ADA, ALGOL, BASIC, COBOL, C, C++, FORTRAN, LISP, Pascal and PROLOG. Read more about BASIC Programming Language Features Application Areas.
In recent years, BASIC transformed to QBASIC and then as
VISUAL BASIC. BASIC program was very slow in early day of personal computing. This
is because BASIC was executed through Interpreter. Through Interpreter program
code is executed line by line taking too much time. But when BASIC compiler was
available very less time was taken for execution. Compiler does the conversion
ahead and once converting the whole program code into executable program.
BASIC is used in many business applications and is still
considered a valid choice as a programming language for some purposes.
Microsoft's Visual Basic (VB) adds object-oriented features and a graphical
user interface to the standard BASIC.
Some of the Basic keywords used for
different purposes are defined below.
1.
Data Manipulation – LET, DATA
2.
Program flow control – If – Then – Else; for …. to…
Next; While …. Wend, Repeat …. Until, Do … loop, GOTO
3.
Input and Output – LIST, PRINT, INPUT, TAB
4.
List of Functions – ABS, ATN, COS, INT, LOG,
SIN, SQR
BASIC programming example >> where user asked to enter
a number then number multiplies by 20 and result is shown in the screen.
10 PRINT ‘ENTER A NUMBER’
20 INPUT NUM
30 PRINT ‘YOUR NUMBER * 20 IS ‘;NUM*20;
The IF construct is a compound statement which begins with IF ... then and ends with END IF. The sequence of statements (a block) inside the IF construct is indented for clarity (done automatically by the DO FORMAT command). An example of the IF statement with two or more branches is given by:
The IF construct is a compound statement which begins with IF ... then and ends with END IF. The sequence of statements (a block) inside the IF construct is indented for clarity (done automatically by the DO FORMAT command). An example of the IF statement with two or more branches is given by:
LET x = 0
DO while x <= 30
IF x = 0 then
LET f = 0
ELSEIF x <= 10 then
LET f = 1/x
ELSEIF x <= 20 then
LET f = 1/(x*x)
ELSE
LET f = 1/(x*x*x)
END IF
PRINT x,f
LET x = x + 1
LOOP
END
Features of BASIC programming
language:
1.
Easy to learn for beginners.
2.
It is designed for interactive use rather than
batch work.
3.
Adds powerful additional features for the
advanced users
4.
Despite its simplicity, it is used for a wide
variety of business applications.
5.
Lends itself to learning by hands on practical
use.
6.
It allows creation of loops.
7.
It allows User defined functions
8.
It contains various system commands.
BASIC Programming Language features Application Areas
1.
It contains powerful additional features which
can be beneficial for advance users.
2.
It is used in many business applications due to
user choice for simplicity
3.
This language is very easy to learn by the
beginners. The user having less knowledge of Mathematics can also program in
BASIC.
4. BASIC is designed for interactive use despite of
Batch work.
e- BASIC was upgraded to QBASIC and later to Visual Basics.
-- BASIC is a computer programming language developed to create macros to automate repetitive word- and data-processing functions, and generate custom forms, graphs, and reports
--- BASIC later provide a powerful features such as graphical user interface, events handling assess to Win 32 API, object-oriented features, error handling, structured programming.
e- BASIC was upgraded to QBASIC and later to Visual Basics.
-- BASIC is a computer programming language developed to create macros to automate repetitive word- and data-processing functions, and generate custom forms, graphs, and reports
--- BASIC later provide a powerful features such as graphical user interface, events handling assess to Win 32 API, object-oriented features, error handling, structured programming.
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