An input device is a device which is used by the user to enter data into the computer system.
An output device is a device which is used by the computer to send data back to the user in a way that the user can understand.
It is possible for a device to be both an input and output device simultaneously. For example a force-feedback joystick takes input from the user, but also communicates to the user with a series of vibrations or force-actions.
Work Input- The work done on a machine as the input force acts through the input distance. Work Output - The work done by a machine as the output force acts through the output distance (What the machine does to the object (dependent on the force) to increase the output distance).
Output(input), or O(i)
A fax machine is considered both an input and output device. It receives data as input (the document being faxed) and sends the data as output to another fax machine.
Output is always greater than input. The output is multiplied from input.
To calculate input force, divide the output force by the mechanical advantage of the machine or system. Input force = Output force / Mechanical advantage. The output force is the force exerted by the machine, while the input force is the force applied to the machine.
Machine efficiency can be calculated by dividing the useful output of the machine by its total input, and then multiplying by 100 to express it as a percentage. Useful output could be output energy, work done, or products manufactured, while total input includes energy or fuel consumed. The formula for efficiency is: Efficiency = (Output/Input) x 100%.
The input force is the force applied to a machine to make it work, while the output force is the force produced by the machine as a result of the input force. In simple terms, the input force is what you put into a machine, and the output force is what you get out of it.
If the input work equals the output work, the machine has 100% efficiency, meaning it is able to convert all the input work into useful output work without any losses. An efficient machine is desirable as it maximizes the output for a given input.
Input force is the force applied to an object, while output force is the force exerted by the object in response. In a simple machine, the input force is the force applied to it, and the output force is the force produced by the machine to do work. The relationship between input and output forces determines the efficiency of a machine.
In a compound machine, the input force is applied to the first machine and then becomes the output force for the next machine in the sequence. The output force of the first machine becomes the input force for the next machine, and so on. Therefore, the input and output forces of the parts of a compound machine are related as they are transferred from one machine to the next within the system.
The mechanical advantage of a machine compares the input force applied to the machine with the output force produced by the machine. It is calculated as the ratio of the output force to the input force and indicates how much a machine amplifies or reduces the input force.
Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.