Programming language

The field of computer and technologies improved very fast these years. First modern programmable computer born in Berlin, Germany in year 1935. It's huge!!!
Look back computers today.

But what I impressed most is the development of software, yeah that's is programming. It's improved much faster than devices. Softwares, games, databases and others all depend on coding. I personally love c++, you know that window7 is built by code of c++ and c# together though some of the Linux user may tell me that window7 code is bad. But for me, this is very great. Compared window7 with window XP and see the differences.

Many development tools are open-source. Here are the links to download:

1) C/C++    DevC++
2) Java     JDK
3) Perl     Perl
4) Python   Python

You can try if you are interested.