Decodes and executes instructions. Not bad, but falling behind the state of the art. Memory Where data and computer programs are stored. Output devices Monitor, printer, speakers, etc. Computer programs or instructions tell the parts of the computer to perform certain tasks in a specified order.
Objects are independent and are, in a way, layered over each other.
The computer can only process concise, simple data formats that are associated with electricity. That is accomplished by using electric switches which are either off or on. If the switch is off, the computer reads numeral 0. If it is on, it is read as numeral one. The computer is only capable of receiving data as 0s and 1s.