"Fine" <fares@[EMAIL PROTECTED]
> wrote:
> When any person enters any shop and buy some items then goes to where he
> pays the prices of his items, the person there make scanning to each
item to
> know what's the price?
> I am asking how this is done? what's program Language used to create
this
> program scanning ?
> and what's the name of this thing that I can read to know this secret?
> From Beginner.
Such a Point of Sale application could be programmed in any number of
languages, but it is likely that one would be written today in one of
the many dialects of C or BASIC, because they are currently the most
popular languages for user applications. System software (operating
systems, hardware interfaces, compilers, etc.) are typically written
in C or C++, with some assembly language.
Learn to program for the web, and for Windows, if you want the biggest
potential market for your software. You might want to consider Visual
Studio .NET. You can download the "Express Editions" of Visual Studio
2005 free from Microsoft.com - specifically Visual Basic, Visual C++,
Visual C#, Visual Java#, and Visual Web Developer (which sup****ts VB &
C# in the Express Editions). The Express Editions can be used to write
and distribute real applications, they're not crippled. The advantage
of using Visual Studio is that it is from Microsoft and for Windows,
which makes for a huge potential market and lots of learning materials
and references readily available. But the learning curve for .NET is
fairly steep.
Beyond that, there are many free or inexpensive compilers out there.
Some of them are pretty good. I suggest avoiding DOS based compilers,
and select something for Windows, or possibly a Linux. Start from the
ground up learning GUI & web application development. Object Oriented
(OO) programming is a big deal these days, and the industry clearly
thinks OO is the wave of the future (though I'm totally not convinced
it necessarily should be), so you may want to select an OO language.
C++, Java (a dialect of C++) and Visual Basic are OO, and the most
popular programming languages for new development these days. COBOL
is still up there, even in new development, because of the vast base
of COBOL code written over 40 years. Most big companies and government
agencies still operate on core applications written in COBOL, running
on mainframes. Even so, COBOL appears marked for certain death.
--
Judson McClendon judmc@[EMAIL PROTECTED]
(remove zero)
Sun Valley Systems http://sunvaley.com
"For God so loved the world that He gave His only begotten Son, that
whoever believes in Him should not perish but have everlasting life."
|
