Does anybody here know some tutorial sites for turbo c and C++ and other programming language? We had that lesson when i was in first year but i can't easily catch up or something i don't know much. just a little..so i just wanted to learn more about that programming language..if you know some would you mind to share it here. Thanks in advance! 
Turbo C is a C compiler for DOS that hasn't been extant for about 20 years. It's very out of date, missing quite a lot of headers that code these days demands, has others renamed to things you'd never guess, can only compile 16-bit code, is highly quirky, and really isn't good anything but DOS development. It has to run under DOS emulation to work at all in modern Windows, let alone any UNIX. About all I appreciate in it these days are the help files:
As such any C tutorials I find for you are unlikely to apply to the old, strange dialect of the C standards Turbo C understands. It may be a free release now, but there's better free compilers than this. What is your system?
Wow, nostalgia pics 
The appeal of these old compilers is they are available free.
Since Linux is available for free and has good compilers, consider installing Ubuntu or some other easy-to-install Linux.
Since even ancient coders like me haven't messed with Turbo-C for 20 years, you are going find few people who actually use it often enough to remember anything other than the dead chicken story.
PS: some modern PC speakers attached via a quality soundcard may actually be able to generate 7 Hz tones.
However, I do not know how you could get Turbo C to actually talk to those those Windows drivers and therefore kill chickens.
A modern system with 5.1 subwoofer sound could probably 7hz the dickens out of the vicinity 
Windows still retains a system call specifically for controlling the PC speaker, but I cannot find it right now.