Because - computers can only process digital information. Therefore all analogue input must be converted to digital before processing.
All computers are digital. *Analogue
Advantages: It's digital. Disavantages: It's not analogue.
They can be extremely accurate, and for certain types of complex systems may be much faster than their digital brethren.
Computers DO use analogue methods to transfer information.Modems, for example (short for "Modulator/DEModulator") use either frequency shift or phase shift to transmit information.Your monitor, even if it is a digital monitor, is using light to transmit information to your eyes, which is an analogue medium.Even your wireless connection uses frequencies (analogue) representing ones and zeros to your computer; where the frequencies are converted back to ones and zeros by the wireless card.
Analogue data is data in a continuous stream that has an infinite range of values that change gradually. One example of analogue data is the sound of a person talking. We are capable of handling analogue data, yet computers require analogue data to be converted into digital data for processing. Digital data is discrete data that is used in computers to handle all sorts of digital media, including text, graphics and audio. It only exists in two forms - on and off. This is represented with two digits- 1s and 0s - in the binary format. Since digital data is discrete, files saved in this format can be copied perfectly with no degradation.
Slide rule
All computers are digital. *Analogue
I. I. Eterman has written: 'Analogue computers' -- subject(s): Electronic analog computers
Analogue data is data in a continuous stream that has an infinite range of values that change gradually. One example of analogue data is the sound of a person talking. We are capable of handling analogue data, yet computers require analogue data to be converted into digital data for processing.
There are many demerits of analogue computers. The main cons include lack of versatility, and the fact that they are not absolutely accurate among others.
Advantages: It's digital. Disavantages: It's not analogue.
Michael John Dinnis Brand has written: 'Analogue computers' -- subject(s): Electronic analog computers
ANALOGUE COMPUTERS ARE THE COMPUTERS WHICH PROCESS DATA IN A WAVE FORM WHILE HYBRID COMPUTERS POSSESS DATA IN BOTH DISCREET AND WAVE FORMS.
For most digital computers at the lowest level, they work in binary. Experimental multilevel computers have been built and analogue computers don't work in binary.
d. Modem It modulates digital signals to analogue signals and demodulates analogue signals back to digital signals.
Computers are designed according to the data they are supposed to process. In this regard there are three types of computers Analogue, Digital and Hybrid.
Analogue 1 Analogue 2 Analogue 3 Analogue 4 Analogue 5.