Computer Architecture

How does a machine made of switches actually “think”? Watch the big picture — then explore the same ideas hands-on in the Lab's exhibits.

How a computer works — follow one instruction through the machine

While you watch, hunt for the answers:

  • What are the three steps of the fetch–decode–execute cycle?
  • Which parts hold data temporarily, and which decide what happens next?
  • Where do the ALU, registers and memory appear — and what is each one's job?

Then visit Boolean logic & logic gates and The memory hierarchy in the Concepts section — you've seen the video, now touch the machine.