manjupanneer@gmail.com (Manju Panneerselvam) — Sat, 29 Dec 2012 06:01:00 +0000

What is a programming language?

· Programming languages are formal languages that have been designed to express computations.

· They have strict rules about syntax.

· Syntax rules come in 2 flavors, pertaining to:-

a. Tokens [basic elements of the language, like words & numbers]

b. Structure [the way the tokens are arranged]

A program is formed as shown below:-

Based on how programs are run, the programming languages are of 2 types as:

Low-level language	High-level language
Programs can be run directly without any translation.	Programs have to be translated before they can run & this translation takes time.
Not that easier.	Easier programming
Runs on one kind of computer, and have to be rewritten to run on another.	Portable [ run on different kinds of computers with few or no medications ]
Eg) machine / assembly language.	Eg) Java, Python, C or C++, and Perl

· In a program, errors might come which are called as bugs.

· There are 3 types of errors:-

1. Syntax error

2. Run-time error [exceptions]

3. Logic / Semantic error

· Correcting these errors is called Debugging.

There are 2 elements in all programming languages:

1. Code [what is happening]

2. Data [who is being affected]

· Programs are conceptually organized around these elements.

· These form 2 paradigms to categorize all languages as:

(a) Process-oriented [code controls data] à C

(b) Object-oriented [data controls code] à C++, Java, etc

Now you will have an idea about what programming languages are, so the tutorials will be of more clarity. Click the menu buttons for the tutorials.

Codes Pun