What are the advantages and disadvantages of digital computers and analog computers?
- exact reproducible results of calculation
- insensitive to drift, component aging, temperature, etc.
- all data encoded to nearest representable value
- slow and expensive when implemented with same technology as analog computer
- continuous representation of all data within the range of the machine
- fast and inexpensive when implemented with same technology as digital computer
- results of calculations may not be reproducible due to undetectable setup errors
- sensitive to drift, component aging, temperature, etc.
etc., etc., etc.
Because analog computers do not have to encode and decode from binary, and instead use the physical properties of electricity directly, the functions they can perform are done at a substantial fraction of the speed of light, and are therefore dramatically faster than what even the most powerful supercomputer is capable of. Calculations that are very difficult for a digital computer can be done with great speed by an electric analog computer. == == The…
Depends on the type of computer: Analog computers process Analog (Continuous) signals Digital computers process Digital (Discontinuous) signals Digital Signal Processors process Digitized Analog signals Any analog type signal can be digitized for a digital computer and converted back to analog for the "real world".
What gives you the idea that analog computers cost more than digital computers? There are many kinds of analog computers, some cost almost nothing yet give answers much quicker and in easier to understand form than digital computers. Two examples of these are Rubber Sheet Analog Computers and Soap Film Analog Computers. Also neither of these consumes any power as they are neither electronic nor electrical.
Well it is kind of simple really but digital has better graphics and says to run faster. The reason is simple: ease of programming Digital computers can be programmed by writing code, which can be reloaded at any time. Analog computers usually have to be "taken apart and rewired" to be programmed. In fact, when built with the same technology, Analog computers are always faster than Digital computers at solving the same problem. However Analog…
Ans. Difference between a digital and hybrid computer: Digital Computers: These are general purpose computers. They accept data in the form of discrete digits (0 and 1). They have large storage capacity. They come in many sizes and shapes. They are generally used in every field of life. They are slow but accurate as compared to analog computers. Hybrid Computers: Hybrid computers combine best features of analog and digital computers i.e. speed, accuracy reliability etc…
Well, as I'm not sure what "kinds" you mean: Mechanical analog computers Electronic analog computers Electromechanical digital computers Electronic digital computers Hybrid computers (part digital part analog) Relay computers Vacuum tube computers Transistor computers Integrated circuit computers Microprocessor IC computers Business computers Scientific computers General purpose computers Supercomputers Embedded computers Mainframe computer Minicomputer Microcomputer Cluster computer System on a chip Did I cover the kinds you wanted?
All computers are not digital. Prior to the 1940s all computers that had ever been built were analog (only Charles Babbage's never built Analytical Engine designed in the 1830s was a digital computer in this period). Even after the 1940s many computers were still analog and other computers were hybrid (part digital, part analog to best use the advantages of each to solve the problems as quickly as possible, at the lowest cost possible, while…
• digital computers work on discrete data representing quantities by encoding (e.g. integers, coded alphanumeric characters, coded floatingpoint numbers). • analog computers work on continuous data representing quantities by analogy (e.g. voltages, currents, shaft rotation rate, shaft position). • hybrid computers are a combination of digital & analog computers connected together to work as one machine.
Analog computing mechanisms can reach a solution much faster than digital computing mechanisms can for the same problem; but to get more digits of accuracy, analog computing mechanisms require expensive high-precision, low-drift, temperature-stable components, while digital computing mechanisms can be expanded inexpensively to as many digits as desired.
High speed Analog computers built with the same technologies can reach a solution faster than digital computers. However that solution has a larger error component because of component tolerance and drift. Some hybrid computers were built and operated simply to use this analog speed to get initial result values for the digital computer to improve by approximation algorithms to get the required accuracy. This significantly reduced total solution time with no loss of accuracy over…
Following are some advantage of digital communication over analog communication: 1) Digital Communication is more simpler than Analog Communication. 2) Digital Communication is more cheaper than Analog Communication. 3) Digital Communication is more secure than Analog Communication. 4) Digital Communication is more immune to external and noise interference as compared to Analog Communication. 5) Digital information can be saved and retrieved when necessary while it is not possible in analog.
Have you ever studied analog computers? Didn't think so. The first system I worked on in 1978 was a military avionics unit containing 6 digital and 2 high speed hybrid (digital & analog) computers in a 6 inch square by 2 foot long box. Analog drifts and can rarely give more than 2 digit precision answers.
Analog computers are easier and cheaper to build than digital computers, so they were successfully built first. Digital computers typically require at least one or two orders of magnitude more components than analog computers to have the same computing ability. You rarely see Analog computers anymore because they tend to require repeated calibration, are much more prone to errors, have more limited precision, and are harder (sometimes impossible) to reprogram for a different problem than…
This is a brief description of an analogue computer An 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…