Do you want to see some examples of the technological achievements? Please visit the following websites:

a)http://www.google.com.my/images?hl=e&q=keris%2Bpicture&um=1&ie=UTF-8&source=univ&ei=H_jJS9OyHsKyrAfXp_jdBQ&sa= X&oi=image_result_group&ct=title&resnum=1&ved=0CA8QsAQwAA

b)http://www.google.com.my/images?um=1&hl=en&tbs=isch%3A1&sa=1&q=traditional+malamalay+house%2Bpicture&btnG=Search&aq=f&aqi= &aql=&oq=&gs_rfai=&start=0

c)http://www.google.com.my/images?um=1&hl=en&tbs=isch%3A1&sa=1&q=traditional+malay+dinghies&aq=f&aqi=&aql=&oq=&gs_rfai=&start=0