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Topic: Analog computer


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In the News (Thu 21 Mar 19)

  
  EETimes Encyclopedia
Analog devices monitor conditions, such as movement, temperature and sound, and convert them into analogous electronic or mechanical patterns.
In traditional radio, the original sound waves are maintained as analogous electrical waves throughout the entire chain from recording microphone to the listener's speakers.
The analog waves are transmitted over the air in the radio station's channel frequency, which is called a "carrier." The carrier is altered (modulated) to contain the analog waves as if wrapped within conceptually.
www.eetimes.com /encyclopedia/defineterm.jhtml?term=analog&x=&y=   (0 words)

  
 Search Results for "Analog computer"
An analog computer operates on continuously varying data; a digital computer performs...
computer graphics, the transfer of pictorial data into and out of a computer.
He is best known for his design of the differential analyzer, an analog computer that could solve differential equations with as many as...
www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=&query=Analog+computer   (0 words)

  
 Analog Computation
In the 1950s and 1960s electronic analog computers were used to design mechanical systems from bridges to turbine blades, and to model the behavior of airplane wings and rivers.
Digital computers replaced general purpose analog computers by the early 1970s because analog computers had limited precision and were difficult to reconfigure.
Although analog circuits are small, almost all of the space on this board is used to interface them to a digital computer for testing.
www.indiana.edu /~rcapub/v21n2/p24.html   (0 words)

  
 Computer History Museum - - The HYCOMP Hybrid Analog/Digital Computing System
Analog computers were once the workhorses of scientific computing.
In an analog computer, numbers are typically represented as voltages or currents, rather than as zeros and ones, as in digital machines.
The chief advantage of analog machines is that it can be easier to simulate a physical situation via hooking up (usually via plug board wires) various combinations of signal generators, integrating devices etc than learning how to write a program.
www.computerhistory.org /brochures/categories.php   (0 words)

  
 No. 412:Old Analog Computer
nalog computers were the great promise of the early '50s.
We found a small army of natural processes that were analogs of each other.
The construction of the Analog Facility was commissioned and funded by the Southern Gas Association and the Pipeline and Compressor Research Council.
www.uh.edu /engines/epi412.htm   (471 words)

  
  G6 Analog Computer
Although the analog computer rarely computes in a manner that gave it its name, analog computing continues to thrive in the form of linear circuits.
Analog computing fundamentals are the roots of linear circuits.
USING THE COMDYNA GP-6 ANALOG COMPUTER, by Professor Ian Petersen, Department of Electrical Engineering, Australian Defense Force Academy, is an excellent presentation of programming and operating the GP-6.
www.comdyna.com /gp6intro.htm   (261 words)

  
 Analog computers
Early special-purpose analog computers were the astrolabe of the Middle Ages, the slide rule, the curvimeter and planimeter, and the harmonic analyzer.
Analog computers - sometimes in combination with digital computers - were heavily used until well in the 70's for applications like automobile suspension design, chemical process simulation and control, experimentation with 'world models', aircraft flight simulators, Apollo spacecraft flight control, and many others.
While the analog computer was ideal for the fast solution of differential equations (because all operations are effectively done in parallel), very expensive parts and construction techniques were needed for obtaining a reasonable accuracy of the solutions.
www.science.uva.nl /faculteit/museum/AnalogComputers.html   (622 words)

  
 Analog computer Summary
Consequently, the precision of the analog computer readout (of rational numbers) is limited only by the quantization of the readout equipment used (generally three or four places).
There is an intermediate device, a hybrid computer, in which a digital computer is combined with an analog computer.
Analog synthesizers can also be viewed as a form of analog computer, and their technology was originally based on electronic analog computer technology.
www.bookrags.com /Analog_computer   (3415 words)

  
 Computer - MSN Encarta
Analog computer systems were the first type to be produced.
A popular analog computer used in the 20th century was the slide rule.
Most modern computers, however, are digital machines whose components have a finite number of states—for example, the 0 or 1, or on or off bits.
encarta.msn.com /encyclopedia_761563087_4/Computer.html   (776 words)

  
 Retro Thing: Vintage analog computer kits
Analog electronic calculations are performed almost instantaneously using a network of operational amplifiers that modify continuously variable current.
One classic example of an analog computer in action is the Magnavox Odyssey video game console from 1971, which plays mind-numbingly simple Pong-like games without a microprocessor.
Still, I suspect that the recent arrival of programmable analog chips may signal the rebirth of interest in analog computing.
www.retrothing.com /2006/08/classic_analog_.html   (430 words)

  
 What is computer
Hybrid Computers: Hybrid computer is the outcome of the integration of analog   computer components and digital components.
Reliability: Computers are extremely reliable, Where reliability is the measurements of the performance of  a computer, measured against some predetermined standard against for operation against some predetermined standard  for operation without the failure of it.
It is a CPU of a computer, which determines the class andthe quality of the computer.
www.geocities.com /nemhasekka/computer.htm   (2115 words)

  
 MacKiDo/Humor/HappyBirthdayAmerica
Well there have been a few analog computers and devices but for the most part what sounds logical may not be (in electronics) when you know more about the problem.
The analog example I used was doing something that could be called discrete-analog -- where the analog level is expected to be at an absolute (discrete) value, and not wandering anywhere in between.
It isn't that analog is bad, or that it can't be done -- some of the early computers, and some research computers have been analog.
www.mackido.com /Hardware/AnalogVsDigital.html   (2030 words)

  
 Computer Types: Classical vs. Non-classical
But other names are used for computers that are not of the "classical" type: connectionist computer, artificial neural network, analog computer and parallel distributed processor, to name a few.
In a non-classical computer, at least some of the information is carried in analog rather than digital form and the information is distributed throughout large sections of the system rather than localized in specific places.
A computer that has this property is often described as being robust; a computer that lacks this property and is easily defeated by minor malfunctions is typically described as brittle.
www.mind.ilstu.edu /curriculum/nature_of_computers/computer_types.php   (2851 words)

  
 T4 Inventions: Analog Computer   (Site not responding. Last check: )
To learn about analog computers, it is important to understand what analog is. In a world of analog verses digital computers, analog units deal with continous data whereas digital units manage data in set incriments.
Analog computers are simply computers that are designed to handle continuous data.
The computer measures watts and displays them with a dial, and if settings are changed (such as units of measurement) the computer reacts differently to the information.
library.thinkquest.org /25042/data/analogcomputer.html   (143 words)

  
 Brain as an Analog Computer
A tape recording is an analog record that stores a waveform analogous to sound waves or electronic waves generated by sound interacting with a microphone.
The most important distinction between digital computing device and the brain is that the digital device separates data and the procedures that operate on the data.
Each neuron is a computer in its own right and may have the signal-processing value of hundreds or thousands of transistors in a digital computer.
www.nutramed.com /Philosophy/analog_computer.htm   (896 words)

  
 EETimes.com - Analog computer trumps Turing model
Siegelmann would like to see the neural network "considered a standard model in the realm of analog computation, functioning in a role parallel to that of the Turing machine in the Church-Turing thesis," she said.
Turing's theoretical computer was designed with only a finite number of discrete states, and used a finite alphabet of symbols stored on an infinitely long tape that would be read by the machine.
The mathematical model of analog computation suggested by Siegelmann is, similarly, a dynamical system that evolves in a continuous-phase space, in contrast to the discrete-space model of digital computers.
www.eetimes.com /story/OEG19981103S0017   (0 words)

  
 computer - Information from Reference.com
The modern electronic digital computer is the result of a long series of developments, which started some 5000 years ago with the abacus.
This was really the forerunner of the modern digital computer, in that it combined the principles of sequential control, branching, looping, and storage units.
The first microprocessor, which might be regarded as a computer on a chip, appeared in 1971, and nowadays the power of even the most modest personal computer can equal or outstrip the early electronic computers of the 1940s.
www.reference.com /browse/all/computer   (2889 words)

  
 sts3700b: Lecture Number 20a   (Site not responding. Last check: )
Thus it really operates as a simulator…; The computer may frequently be operated on the same time scale as the real system being studied and the two may even be linked together… Since the operations are all performed simultaneously, the analog computer is faster than a digital computer of comparable cost.
The analog computer is programmed by interconnecting the various arithmetic units in such a way that the desired problem will be solved.
For a start, all operations in an analog computer are performed in parallel, and secondly, data is represented in an analog computer as voltages, a very compact but not necessarily robust form of data.
www.yorku.ca /sasit/sts/sts3700b/lecture20a.html   (2444 words)

  
 computer: Analog Computers — FactMonster.com
An analog computer represents data as physical quantities and operates on the data by manipulating the quantities.
Because of this feature, analog computers were especially useful in the simulation and evaluation of dynamic situations, such as the flight of a space capsule or the changing weather patterns over a certain area.
Although analog computers are commonly found in such forms as speedometers and watt-hour meters, they largely have been made obsolete for general-purpose mathematical computations and data storage by digital computers.
www.factmonster.com /ce6/sci/A0857505.html   (0 words)

  
 EDTN's Top EDTN News: 11/04/98: Analog computer trumps Turing model
Siegelmann would like to see the neural network "considered a standard model in the realm of analog computation, functioning in a role parallel to that of the Turing machine in the Church-Turing thesis," she said.
Turing's theoretical computer was designed with only a finite number of discrete states, and used a finite alphabet of symbols stored on an infinitely long tape that would be read by the machine.
The mathematical model of analog computation suggested by Siegelmann is, similarly, a dynamical system that evolves in a continuous-phase space, in contrast to the discrete-space model of digital computers.
www1.cs.columbia.edu /~evs/marvin/non-discrete.html   (1100 words)

  
 Analog Computer Basics
The modern analog computer is based on an electronic circuit known as an operational amplifier.
For the overall discussion of analog computer circuits and op amp behavior in such applications, we will make three assumptions about op amps:
The figure to the right shows the basic circuit used in analog computers.
www.play-hookey.com /analog   (0 words)

  
 Analog Computer   (Site not responding. Last check: )
There are two distinct families of computing device available to us today, the all pervasive digital computer and almost forgotten analog computer.
The digital computer is a sequential device, in general, operating on data one step at a time, in addition the digital computer represents data internally using a quite verbose but very robust form of representation called binary.
Secondly, data are represented in an analog computer as voltages, a very compact but not necessarily robust form of storage (prone to noise corruption).
www.cds.caltech.edu /~hsauro/Analog.htm   (333 words)

  
 Analog Computing
It is a rather small hybrid computer system featuring a built in digital prozessor with a control terminal which allows complete control of the digital part as well as the analog part of the machine.
Analog was not a Computer Trade Mark a wonderful introductory paper written by George Fox Lang, Data Physics Corporation, published in the August 2000 issue of "Sound and Vibration".
A short operating guide for the RA 770 analog computer (in German) which is based on a thesis written by R. Aderhold: Kurzgefasste Bedienungsanleitung für den Telefunken Analogrechner RA 770, about 3 MB.
www.vaxman.de /analog_computing/analog_computing.html   (4930 words)

  
 analog computer — Infoplease.com
computer - computer computer, device capable of performing a series of arithmetic or logical operations.
computer: Analog Computers - Analog Computers An analog computer represents data as physical quantities and operates on the data...
Analog Data Capture module: for field data collection using a laptop or notebook host computer.
www.infoplease.com /ce6/sci/A0910234.html   (205 words)

  
 Nike Computer
The Nike analog computer was single purpose, a fixed program with a few different modes set by relays to simplify and automate the operation.
Analog computers may seem to be "simple" or "like a toy computer", in fact they are powerful tools that were used during the 1950s and 1960s to design and test systems like ICBMs, supersonic aircraft and spacecraft.
The analog computer is basically a set of building blocks, each able to perform specific mathematical operations on direct current voltages and capable of being easily interconnected one to another.
ed-thelen.org /computer.html   (3101 words)

  
 analog - Definitions from Dictionary.com
Computer Science Of or relating to an analog computer.
The wings of birds and the wings of insects are analogs.
The antibiotic amoxicillin, for example, is an analog of penicillin, differing from the latter by the addition of an amino group.
dictionary.reference.com /browse/analog   (421 words)

  
 [No title]
The first is an outside attacker who calls a set of analog line numbers in the hope of connecting to a computer that has a modem attached to it.
A computer which is capable of making a fax connection is not to be allowed to use an analog line for this purpose.
cannot be used, the business purpose for which the analog line is to be used, the software and hardware to be connected to the line and used across the line, and to what external connections the requester is seeking access.
www.sans.org /resources/policies/Analog_Line_Policy.doc   (1085 words)

  
 Nike Computer
The Nike analog computer was single purpose, a fixed program with a few different modes set by relays to simplify and automate the operation.
Analog computers may seem to be "simple" or "like a toy computer", in fact they are powerful tools that were used during the 1950s and 1960s to design and test systems like ICBMs, supersonic aircraft and spacecraft.
The analog computer is basically a set of building blocks, each able to perform specific mathematical operations on direct current voltages and capable of being easily interconnected one to another.
www.ed-thelen.org /computer.html   (3101 words)

  
 Analog Computers   (Site not responding. Last check: )
There are two distinct families of computing device available to us today, the all pervasive digital computer and almost forgotten analog computer.
Secondly, data are represented in an analog computer as voltages, a very compact but not necessarily robust form of storage (prone to noise corruption).
A single capacitor (equivalent to the digital computer's use of a transistor) in an analog computer can represent one continuous variable.
sbw.kgi.edu /articles/analogcomputers.htm   (333 words)

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