What gives the computer' system its intelligence?

this is kind of a tough question to answer. In essence, computers are just stupid lumps of hardware until software is added. a computer can turn on, but can never actually do anything until the software tells it what to do. the software is written by a human, in a coding language. coding languages such as c#, c++, .net, etc. are human readable coding languages. after the code is written, software called a compiler puts it all together so to speak, and turns it into a language the computer can handle (binary). so, essentially a computers intelligence is the product of collective programmers intelligence.