WHAT IS A COMPUTER PROGRAM?
A computer program is a sequence of instruction given to the computer to perform a specific task.
WHAT IS PROGRAMMING?
Programming is the process of giving instructions to the computer or writing computer codes to achieve an aim.
WHO IS A PROGRAMMER?
A programmer is a person that writes, test, debug and maintain a computer program.
PROGRAMMING LANGUAGES
Programming languages are languages used in instructing the computer.
CLASSIFICATION OF PROGRAMMING LANGUAGES
Programming languages are classified into three (3)
i HIGH LEVEL LANGUAGES:
These are languages that are very close to the user language. Eg (Java, C++, C, Perl, Basic, Fortran, Pascal, Cobol).
ii INTERMEDIARY LEVEL LANGUAGE:
These uses symbolic code in representing instructions eg (Assembly language) also called MNEMONICS.
iii LOW LEVEL LANGUAGES:
These are machine languages that uses binary digits in representing instructions.
LANGUAGE PROCESSOR/TRANSLATORS
*Translators are programs that translates source programs into object programs.
SOURCE PROGRAM --->TRANSLATOR--->OBJECT PROGRAM
TYPES OF TRANSLATORS
i Compiler:
This compiles the entire program.
ii Interpreter:
This interprets the program sequentially (line by line).
iii Assembler:
This translates program written in assembly language into machine code.
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