This looks like C not C++, so look into creating structs.

Have a microcontroller generate the PWM.
You can communicate with the microcontroller using the PC.

An XY graph with amplitude on Y-axis and time on the X-axis. Excel or any software with good graphing capabitlites should do.

This is how 5 samples of 8-bit PCM with a sampling frequency of 1KHz...

http://www.intmath.com/Fourier-series/7_Fast-fourier-transform-FFT.php

I believe that's only useful for describing
the wave mathematically, as a series of sines and cos waves added together...

Are you able to obtain an amplitude for every sample from beginning to end from the wav file? That's the information you need.
So if the wave is sampled at 44.1 KHz, you have an amplitude at every...

The parallel port is the most simplest port you'll find on a computer and could do those things for you. I'd start there (providing you have a parallel port). Your operating system is also a factor.

A loopback test would verify that.
http://zone.ni.com/devzone/cda/tut/p/id/3450

Some programs don't need human interaction directly. Just look at some of the programs that make up the software installed on your computer, or belong to your OS.
Frontends are often written for...

Division is repeated subtraction.
6/3 = 2.
3 can be subtracted from 6 twice, until you're left with zero. Which explains why dividing by 0 is infinity.
Multiplication is simply repeated addition....

Yes. You'd need to limit rand to the amount of cards in a deck.
You'd typically use a switch statement instead of the if/else's there. You'll need a for loop to check if the card has already been...

You'll have no problem there, you have the World Wide Web at your fingertips and it contains
countless examples of how to reverse strings.

If this is C++, best to avoid functions like sprintf.

If your ints are one digit, you can add '0' to them to make them char.
If they are multidigit, you can convert them to a C++ string like...

itoa is a non-standard function.
Have a look at sprintf instead. http://www.cplusplus.com/reference/clibrary/cstdio/sprintf.html

Code::Blocks
http://www.codeblocks.org/

It comes with GCC and has support for numerous others.

A timer interrupt is generally one that uses the processor's clock to generate an interrupt periodically, not one that uses an outside signal.

No. Don't learn C if you want to learn C++.
It make things worse. Just start with C++ if you want to learn C++.

http://images.google.ie/images?hl=en&safe=off&q=flowchart&um=1&ie=UTF-8&sa=N&tab=wi

Hi Nimz. When declaring variables, there's a few rules. Scroll down to Names in C++ here
http://www.functionx.com/cppcli/variables/Lesson03.htm

See then if you can spot anything wrong with how...

It won't work. The serial port has a maximum output current and will try to charge the cap with an unlimited amount of current.
We still don't know why he wants to do this.

It won't work and you will probably fry the port. Why are you trying to do this?

There is another programmer for that chip with source if you're interested. For windows and linux.
http://www.geocities.com/dinceraydin/8051/

nevermind

Why would you attempt to start writing code to control a circuit if you're not sure of it's wiring.
Everything about the motor, you should find in the datasheet.

There's a stepper motor tutorial...

You're calling your functions wrongly. They should look more like this.
rad = radius(x1, y1, x2, y2);
rad, is the value you'd print out as well as pass to your other functions like
area =...

void main() is fine. There isn't an OS. The code runs in an infinite loop until the power is removed.

Division by subtraction is how many times a number can be subtracted from a number until
you're left with nothing.

eg 6/3 = 2. Three can be subtracted from six twice.

Therefore you should be...

If you have to use graphics.h for this assigment look here
http://www.electrosofts.com/cgraphics/index.html

Some if else statements would be better

http://gd.tuwien.ac.at/languages/c/programming-bbrown/c_025.htm



Logical operators...

graphics.h is a header for the old Borland compilers. It won't work in your environment.

You'll need TurboC++, but it's for DOS. It should run under XP, but not recommended.

Which part don't you get?

Take a look here at cin.ignore() and cin.get()
http://www.cprogramming.com/tutorial/lesson1.html

Just to note. It isn't necessary to use binary to work out this example. ASCII goes from 0 to 127.
'a' is 97. If you add 31, you're back to 0. You could add 95 to get the same result. 223 is...

F7 to compile and F5 to run.

Your question doesn't make sense. C++ is a programming launguage. You can't download C++.

Oh well, the second half of my post would have worked if the OP hadn't.

I think it might be.

outtextxy(13,13,"a")

Or you can do

moveto(13,13);
outtext(a);

Also, if you plan on printing out integers in graphics mode, they need to be converted into a string

How to Compile C programs in Visual C++ 2005
http://cplus.about.com/od/learningc/qt/compilingc.htm

edited

For a 2 input AND gate, you have 4 possible combination of inputs(0 to 3 in binary) . The output will only be a 1 if the two inputs are a 1, otherwise the output is a 0.

For a 2-4 bit decoder,...

I'm sure there are some for dummies books that aren't a good idea to buy, but it's unfair to generalise though I'm only recommending the two I've mentioned.