I am not sure how many people are still thinking that moon landing never actually happened. But, its not the instruments who could make us win, it’s the will power and determination in us which is responsible for the great success.
Now, even if the old computers were too slow and too cumbersome to use but the fact is that they laid the foundation of today’s information technology.
Moreover, if you are thinking that NASA used only one old computer to complete the moon mission then I am sorry to tell you that you are thinking wrong. All these computers (poorer than your cell phone) were used in parallel to increase their massive computing power to achieve that mission…. Got it!