tech is like wood works, metal and maybe food tech ( cooking). In shopping though it could be like working out diffrent fabricks!(FUN)Hope you fined this helpful :) :D ;) :P :)C
Technology = Science or knowledge put into use.Being technology mean the science or knowledge came out from paper and put to production, product, equipment, gadget or practice etc.
If you want to study Technology as a career then you need to study at a University. They will be able to explain to you what parts of Technology they teach.