MBA
SUBJECT
NAME: Computer Applications and Management Information System
Subject
Code: RMB 108
UNIT
1(conceptual frame work)
Introduction to Programming Languages
A computer is a computational device which is used
to process the data under the control of a computer program. Program is a
sequence of instruction along with data. While executing the program, raw data
is processed into a desired output format. These computer programs are written
in a programming language which are high level languages. High level languages
are nearly human languages which are more complex then the computer
understandable language which are called machine language, or low level
language
A programming language is a vocabulary and
set of grammatical rules for instructing a computer or computing device
to perform specific tasks. The term programming language usually
refers to high-level languages, such as BASIC, C, C++, COBOL, Java, FORTRAN, JAVA
etc.
Translators
Computer can understand only machine level language which is
in binary (0&1). It is difficult to write and maintain program in machine
level language. So the need arises for converting the code of high level to low
level language and translators are used for this purpose.
1. 1 Assembler
2. 2 Compiler
3. 3 Interpreter
Assembler: It is used for
converting the code low level language (assembler language) into machine level
language.
Compiler: A Compiler searches all the error of program and
list them. If the program is error free then it converts the code and then program
can be executed.
Interpreter: It checks the error of program statement
by statement. After checking one statement it converts that statement into
machine code and then executes the statement.
This process continues for last statement of
program.
