Analog Computer vs. Digital Computer
Key Differences
Comparison Chart
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Usage
Speed
Reliability
What are Analog Computers?
Analog computers can be a vast field to define. In simple words, a computer which uses the continuous signal for its operation is called an Analog computer. Because of this type of indicator, they are able to receive input and produce output regularly, and this helps in solving complicated processes. However strong the signal may be and even if it is in the form of electrical or mechanical, analog computers are able to deal with it. The emphasis in this type of computer is on obtaining a solution, however, error prone it may be. Analog computers started way back in the 19th century and have advanced over the years. Before the origin of digital computers, they were considered the best forms of devices. An example of the analog computer will be a mercury thermometer which calculates the temperature of the human body and then displays it as a range of mercury. Because it has noise in its system that affects the results as well while storage process in analog devices is complicated as they may hold values but that is only possible for a certain amount of time.
What are Digital Computers?
Digital computers are defined as devices that use the discrete signal for their processes which are in the binary form. In Digital computers, the input is coded in the form of zeroes and ones to get a more accurate result. An example of a digital computer will be a calculator in which all the coding is already done, and you get a correct result which is not possible in the case of analog devices. This is also because of the reason that e is minimum noise in the system because the electrical noise coming is in the form of analog signal. Calculations, in this case, take less time because all the coding is already done and the results which are displaced can be as accurate as possible. Digital devices have taken over the analog ones in the recent times because of their effectiveness. It is more reliable, has greater space and can store data for a longer time although its cost is higher. The factor that gives it more edge is that there are no observatory errors since all the calculations are done by the computer and values are displayed correctly.
