Analog Computers use physical things such as mechanical, electrical and hydraulic aspects to model the real world. These include slide rules and nomographs.
due to the use of MODEM
abacus old-fashioned cash register (with gears and handle) gear-driven clocks/watches ---- Actually the above are examples of mechanical computers, not analog computers. Analog computers use continually variable quantities. An abacus uses discrete units of measurement and is digital, though not binary. A slide rule is an example of a simple mechanical analog computer. Another example is the Norden Bomb Sight. An ancient example is the astrolabe. More complex analog computers are programmable and can use fluid, mechanical, or electronically set values. There is a link below to an article on analog computers.
No, most computers today are digital machines. Digital computers operate using discrete binary data, represented as 0s and 1s. Analog computers, on the other hand, manipulate continuous physical quantities such as voltage, current, or mechanical motion. While analog computers were used in the past, the vast majority of computers in use today are digital.
This is a brief description of an analogue computerAn analog computer is a form of computer that uses the continuously changeable aspects of physical phenomena such as electrical,mechanical, or hydraulic quantities to model the problem being solved. In contrast, digital computers represent varying quantities symbolically, as their numerical values change. As an analog computer does not use discrete values, but rather continuous values, processes cannot be reliably repeated with exact equivalence, as they can with Turing machines. Analog computers do not suffer from the quantization noise inherent in digital computers, but are limited instead by analog noise.Analog computers were widely used in scientific and industrial applications where digital computers of the time lacked sufficient performance. Analog computers can have a very wide range of complexity. Slide rules and nomographs are the simplest, while naval gunfire control computers and large hybrid digital/analog computers were among the most complicated.[1] Systems for process control and protective relaysused analog computation to perform control and protective functions.Source: Wikipedia
Digital computers are purely digital, i.e. they use digital(electronic) means to process data. Hybrid computers conversely use both digital and analog technologies.
analog computers, which use the fluctuations of voltages to directly display the result.
Computers DO use analogue methods to transfer information.Modems, for example (short for "Modulator/DEModulator") use either frequency shift or phase shift to transmit information.Your monitor, even if it is a digital monitor, is using light to transmit information to your eyes, which is an analogue medium.Even your wireless connection uses frequencies (analogue) representing ones and zeros to your computer; where the frequencies are converted back to ones and zeros by the wireless card.
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An analog computer is any computer that represents its data in the form of continuously variable signals instead of the discontinuous encoded symbols used by digital computers.
Digital computer uses discretely coded numbers or symbols (typically in binary, although other codings like decimal and trinary have been used in certain machines). Changes in value are sudden jumps by at least the smallest representable value. Digital computers can incorporate error detecting and/or correcting circuits.Analog computer uses continuously varying signals. Changes in value are smooth and continuous. Analog computers drift with temperature, voltage, component aging, etc. and are very sensitive to noise; any of which can cause undetectable errors.