It takes machines to build machines. It must, at some point, take just basic tools to build the machines that build machines and so on. Who held the first screw to be driven? This is a philosophical question which shall forever go unanswered. You have to admit, it can come in handy to know who invented the hammer and the screwdriver versus who invented the plutonium bomb detonator.
Have you ever thought about the manufacturing of machines so they could then make other machines? Of course, on some innate level, this is already knows, but have you ever stopped to think just how impersonal the items you are using actually are? To put it simply, almost nothing is handmade anymore. Factories are loaded with all sorts of machines that can almost do anything. This is absolutely true, by the way.
All of this, regardless of the machinery, takes keen precision on the part of all instruments involved. Therefore, the machines making the machines that make the machines all have to be completely accurate machines in order to calmly follow the interrupted and uninterrupted signals in a repeating fashion. Hence, there is such a thing as a semi automatic machinery manufacturer.
These are the machines that can quickly build and finish large amounts of precision equipment in a very short period of time. This results in more accurate devices built even faster than before. As a result, the standards of quality and the futures of new components and devices grow.
Semi-automatic machinery really allows for much faster production with fewer to no real errors during the process. By such virtue, they use less power and resources for similar manufacturing output. There is no better system at this time, but the possibilities are rising rapidly. As a company owner, look into expanding your manufacturing practices.