Analog Computers

Analog Computers and Digital computers are the two kinds of computers, the combination of which is responsible for the invention of the modern Hybrid computers. The analog systems carry out arithmetic and logical operations by manipulating and processing data which you input such as the weight, temperature, voltage, power density, etc. But unlike the digital computer that changes all inputs to binary digits of “1” and “0”, the analog computer does not change inputted data to any such sign language.The analog computer has become obsolete type of computer these days. It is different from a digital computer as it can perform numerous mathematical operations simultaneously. The digital computers, however could not operate the more complex operations. The Analog System is also unique in terms of operation as it utilizes continuous variables for the purpose of mathematical computation. It utilizes mechanical, hydraulic, or electrical energy or operation.

Mathematical Principles Applied For The Data Processing In Analog Computers:

• Logarithm
• Summation
• Exponentiation
• Calculus
• Multiplication and Division
• Inversion

The analog computer which is a complex machine is an integration of various mechanical parts which has pipes, valves, levers, gears and several key parts which can be named as follows:-

• Fixed function generators
• Operational amplifiers
• Potentiometers
• Integrators

Advantages and Disadvantages of Analog Computers

The advantage of an analog computer is that it can simultaneously find solutions to several mathematical problems and that too while being precise unlike the digital computer. But it is not free of drawbacks. Unlike the digital computer it lacks speed of calculation. There are other functional problems which mar the efficiency of analog systems. Of these, the problems of non-linearities, temperature co-efficient, parasitic effects and noise floor are the main problems so to say.