You can think of force as the amount of effort you put in, how hard you push, or pull, or lift. And you can think of work as the result of your effort.
Work is a measurement of what really changed in a system. If I lift something from the ground to a table-top, I have done work, because the object now has some potential energy. I could, for example, drop it on a see-saw and have it lift something else, so I can tell I must have done work on it.
Sometimes, 'work' in the physics sense, only produces heat. When you apply the brakes in a car, you change the speed of the car by changing the movement of the car - its kinetic energy - into heat. That is also work. Any time you change the speed of an object, or lift or lower an object, or cause the object to get hotter, you are doing work.
If you move an object just along the floor, it does not have more - or less - potential energy than it had, so you are not doing any work .... unless there is friction, then you create heat from your effort, and that is again work.
So work is changing the energy of an object.
Force is ... well, if you imagine a bathroom scale between you and a car, and you try to push the car, the scale will show some number as you push. It is measuring the force you are applying. You can see that you will be applying a force, whether the car moves or not. If the brakes are on, of course, the car will not move, but there will still be the force you are exerting. So there will be force, but no work: the energy of the car does not change.
The term "input" or 'output' simply refer to the 'cause' and the 'result' of things. If you are using a simple machine, you cause - or input - some force, and the machine sort of translates that force into another force. The force the machine produces (outputs) may be greater or less than the force you put in, but the work will never be more.
By using a lever, you can lift something very heavy, but you will only lift it a small distance by moving the other end of the lever a long distance.. The distance times force that you get out will never be as much as the distance times force that you put in.