The wheel a circular device that is capable of rotating on its axis, facilitating movement or transportation or performing labour in machines. A wheel together with an axle overcomes friction by facilitating motion by rolling.
The personal computer (PC) a computer whose original sales price, size, and capabilities make it useful for individuals, intended to be operated directly by an end user, with no intervening computer operator.
Only Joking but as it’s my first post thought I would post about a few major inventions which have acted as enablers to the economies of the world..
Sorry about that will try and post intersting new business ideas from now on 