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When implemented with the same technology, an analog computer will always be faster than a digital computer. This is because of the data representation: an analog computer represents data using one continuously variable signal per item, this signal is capable of changing as fast as possible with the given technology; a digital computer represents data using several discontinuously variable signals encoding the value of each item, these signals must be allowed to settle and stabilize to a valid code after each calculation forcing the computer to wait, slowing it down. This cannot be avoided and is an inherent difference between the two classes of computer.
Another reason analog computers are faster is architectural. Analog computers do not separate calculation and data storage like modern digital computers do. The calculations are distributed throughout the machine while the data stays put. Digital computers waste a lot of time moving data from memory to a central group of ALUs and back to memory. This could be avoided by use of different digital computer architectures (e.g. DDAs) but these usually sacrifice the benefits of stored programming and make the digital computer as hard to program as most analog computers.
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Is an analog clock more accurate than a digital clock?
Digital clocks will be the most accurate because its computer operated.
Are digital phones as reliable as analog phones?
Digital phones are more reliable than analog phones. The digital signals are easier to produce and the technology is more reliable than that of analog signal.
What is more accurate analog or digital?
Usually digital, it is definitely less expensive to get highly accuracy with digital then analog. Also analog haas drift, stability, etc. problems that digital does not have.
Why digital and analog ground must be separated?
Digital GND has more noise than Analog GND. So never mix up Digital GND to Analog GND to avoid the coupling from Digital to Analog GND
What are the advantages of a digital radio over an analog radio?
The advantages of digital radio over analog radio are digital radios get more channels than analog, they are clearer in sound and signal and have more additional features.
What is digital analog simulators?
Analog system simulation is more sensitive to the changes in the parameters compared to the digital system. This is because of the continuous nature of the analog signals, unlike the discreet nature of the digital signals. Digital systems have gates which can not be used in Analog system.
Why do you have to get digital television?
Older TV sets use analog signals. In February, all TV signals that are now analog will become digital because it gives more efficient use of the bandwidth. Analog sets will not receive and interpret the images from a digital transmission. It's the same reason you can't use your old TV as a computer monitor.
What are the disadvantages of having an analog watch?
The advantages of an analog watch over a digital watch are that analog watches can be more durable in some facets, than a digital one. Many watch enthusiasts also feel that analog watches are more aesthetically pleasing than digital watches.
Importance of digital computer?
Digital technology uses digital data -- sets of discrete values, typically the numbers 1 and 0 -- to represent information. This is in contrast to analog technology that uses continuous values to represent data. All modern computer and electronic equipment are digital because they use and manipulate information using the digits 1 and 0. Digital technology has largely replaced slower analog systems due to its numerous security, speed and error control advantage
Car is a hybrid computer?
A hybrid car contains several digital computers. Hybrid computers were a type of computer now considered obsolete where part of the computer was a digital computer and another part of the computer was an analog computer. One of the reasons these were frequently used was the analog computer could very rapidly get a rough approximation of an answer to the problem, then the digital computer could use this answer to start its slow iterative calculation to get the full precision answer. This combination resulted in a low cost system that gave good answers much faster than either an all digital or all analog computer could. But these are now considered obsolete since the technology for building fast, high performance, and miniaturized digital computers at low cost has advanced much more rapidly than the technology for building analog computers.
Why digital computer is more accurate than analog computer?
an analog computer cannot be more accurate than its component tolerances. this usually limits them to no more than 2 to 4 digits accuracy (although a few have been built with 6 digits accuracy by using special components with very tight tolerances. but such parts are quite expensive).a digital computer can have any accuracy desired simply by increasing the number of bits used to represent numbers.also analog computers are subject to factors like drift, component aging, noise, etc. that have no effect on digital computers.
What is analog simulation?
Analog system simulation is more sensitive to the changes in the parameters compared to the digital system. This is because of the continuous nature of the analog signals, unlike the discreet nature of the digital signals. Digital systems have gates which can not be used in Analog system.
