Analog Computer

Analog Computer is a main type of computer. This computer uses mechanical or electrical phenomena to represent the crisis being resolved or more commonly, it is using a form of physical quantity for representing another. Representing a real physical system in a computer is known as simulation.

The similarity between electrical components such as resistors, capacitors and inductors and linear mechanical components such as dashpots and springs is striking the conditions of mathematics, they can represent by using equation that are of fundamentally the same type.

Though, the dissimilarity between these structures is that it makes analog calculation easy. If an individual uses a simple mass-spring method making the physical structure, it would need purchasing masses and springs. Attaching them to each other would precede this and a suitable anchor, assembling test device with the suitable input series and lastly taking capacity.

Electrical alike can be made with a small number of operational amplifiers and several inactive linear machineries. All dimensions can be used frankly with an oscilloscope. In the circuit, a potentiometer can change the “mass of the spring”. Electrical method is equivalent to the physical method.

However, it is less costly to easier and safer to modify and for construction. Analog computer is also very speedy, from the time when a computation is finished at the speed at which an indication crosses the circuit that is usually a substantial part of the rate of light.

The disadvantage of the electrical – mechanical analogy is that electronics are restricted by the series over which the changeable may differ. This is known as dynamic range and levels of noise also restrict them.

These electric circuits can easily perform other recreations. Such as voltage is used to simulate water pressure and amperes is used to simulate flow of water in terms of gallons for every minute.
Components of Analog Computers:

Analog Computer usually has a complex framework but this contains a set of key elements, which do computations in which the operator is influenced by the framework of the computer.

Main hydraulic mechanism may contain towers, pipes or valves. Mechanical components may contain levers and gears. The following are included in major electrical components:

Operational amplifiers
Fixed-function generators
Potentiometers
Integrators
The following core mathematical operations are utilized in an analog computer:
Inversion
Logarithm
Summation
Exponentiation
Integration with respect to time
Division and multiplication
Differentiation with respect to time