Because there are only a limited amount of ways that we need to get information from a computer but a wide variety of ways are needed to get data into a computer because of the amount of things they are used for. Output is generally in the form of visuals, print, sounds and things like robotic movement. That covers the majority of our needs. For input there are many ways we want to get information in, and new ones are being invented all the time, so there are many more of them.
because of their design
As there is no alternative to input and output devices, other than doing nothing, they have no inherent disadvantages.
A photocopy machine is not considered an output device. It is actually a combination of both input and output devices. The input part involves placing the document to be copied on the glass, while the output part involves producing a duplicate copy of the document on a separate piece of paper. Therefore, a photocopy machine is more accurately described as an input-output device rather than solely an output device.
with the help of input devices we get output. Steps: instruction given(data in)-->process(in processing data in cpu)--> output derived the output can only be derived when input proccessor is supported by input devices or drivers.
Input energy is typically more useful than output energy because input energy is the initial energy put into a system to produce the desired output. Output energy, on the other hand, is the energy produced by the system after losses and inefficiencies have occurred, so it is usually less than the input energy. By maximizing input energy efficiency, we can achieve a more effective output.
No. A function has only one output per input.
Work output can never be more than work input. That's a law of nature. In the real world, it's always less.
No. If an input in a function had more than one output, that would be a mapping, but not a function.
The four fundamental parts of the computer are Processor, Memory, Input devices, and Output devices. Typically, they are tied together by something called a Bus (there may be more than one of any of the preceding).
Output power can never be more than input power. With a transformer, it is possible to increase the output current (while decreasing the output voltage), or to decrease the output current (while increasing the output voltage).
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Output is always greater than input. The output is multiplied from input.