What is hardware description language need basic knowledge about HDL in five pages where can you get except Wikipedia?

buddy u'll find more about it from these links

http://www.knowledgerush.com/kr/encyclopedia/Hardware_description_language/ http://www.ask.com/bar?q=Hardware+description+language&page=3&qsrc=0&ab=5&u=http%3A%2F%2Fmazsola.iit.uni-miskolc.hu%2Fcae%2Fdocs%2Fxabel.html