C++ | a programming language widely used in Windows and Unix/Linux |
bash | a shell used on Unix/Linux systems |
perl | another scripting language. Ugh! |
R | a capital letter |
python | a snake |
ruby | a jewel |
And if you do not know what the internet is then I am quite surprised you managed to find this website. If you want information on these subjects then Google, Wikipedia, or your local library are the places to start at.