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PROGRAMS AND PROGRAMMING LANGUAGES (Well-Known Programming Language (BASIC…
PROGRAMS AND PROGRAMMING LANGUAGES
Programs
-a set of instructions that the computer follows to perform a task
start with
algorithm-
a set of well-defined steps
Machine language
computer only executes
machine language
rather than algorithm bcs it is not ready to be executed on the computer
made up of instructions in binary numbers(101100)
programmer rather use programming language than machine language
Categories
Low-level
used for communication with computer hardware directly
often written in binary machine code (0
s/1
s) directly
High-level
closer to human language
Well-Known Programming Language
BASIC
Beginners All-purpose Symbolic Instruction Code
A general programming language originally designed to be simple enough for beginners to learn
COBOL
Common Business-Oriented Language
A language designed for business applications
FORTRON
Formula Translator
A language designed for programming complex mathematical algorithm
Pascal
structured,general purpose language designed primarily for teaching programming
From a High-level Program to an Executable File
run preprocessor to convert source file directrives to source code program statements
run compiler to convert source program into machine instructions
run linker to connect hardware-specific code to machine instructions,producing an executable file
**Integrated Development Environments (IDEs)
combine all the tools needed to write,compile,& debug a program into a single software application
Ex : Microsoft Visual C++,Borland C++ Builder,CodeWarrior