The basic difference between analog and digital computers lies in the different approaches they take to handling data. Analog computers are able to deal with continuously varying inputs for complex phenomena such as voltage changes and temperature fluctuations. Digital computers must have their inputs reduced to a simple binary language in order to accurately model the world.Know More
Analog systems were once favored by engineers who lacked modern digital technology to run calculations on. As digital technology advanced, however, it came to be preferred for its higher precision and the flexibility of the programs that could be run on digital machines. Modern electronic computers are virtually all digital and express their models in terms of 1s and 0s.
Analog computers haven't died out, however. Oscilloscopes, of the kind used by electrical and sound engineers, are examples of analog computer technology. Slide rules are another example of a computation device that runs essentially on an analog input and output system. Perhaps the most ubiquitous example of an analog computer in the world is the brain itself. Brains are actually a combination of digital and analog systems. While the firing of a single neuron can be regarded as a simple on/off function, the communication between neurons is accomplished chemically by means of neurotransmitters that vary in concentration and intensity.Learn more about Computers & Hardware
One advantage of wearable computers is that a user is in constant interaction with his computer, but a disadvantage is that these computers are heavy. As a user goes from place to place with his computer, it offers him flexibility to work from virtually anywhere. In addition to convenience, the device is not misplaced because it is always on the owner's body.Full Answer >
Depending on the type of computer used, the amps drawn range from 0.25 to more than 2. Laptop computers are at the low end of that range, and desktop machines draw the most power.Full Answer >
The positive side of computer technology is the ability of all people who use computers to stay connected; the negative side of computer technology is the lack of privacy that exists in a society that is heavy with computer technology. While computers provide a place for all people to stay connected on both personal and business levels, they also prevent people from keeping many of the things that they want private.Full Answer >
An eSATA connection is used to connect computers to external hard drives, and cannot be used to connect a computer to a television. Connecting to a television requires a display cable made to carry video signals.Full Answer >