what is digital and analog technology???

Answer 1

Digital computers are those systems which operate with discreet signals, which are in the form of binary numbers. These systems are many-problem oriented.
Analog systems operate on variables that change with continuously varying physical quantities. They are single-problem oriented and are assigned to perform a specific task like weather reports.
There is another system called hybrid system which is a combination of both the analog and digital systems. The modem is an example of such a system.

Answer 2

With regards to monitors:
Digital - these are normally LCD or TFT monitors (flat panels). They use digital technology to be able to change the colour of each individual pixel.
Analog - these are the old style CRT (cathode ray tube) monitors and they use a beam of light that continually goes left to right very quickly to update the picture.
Digital is the new technology, but most graphics cards have both analog and digital outputs. Digital is probably better, as the computer works digitally and the graphics card needs to do a digital to analog conversion to work with CRT monitors. This can degrade the output signal slightly. The digital output is sometimes called DVI and can be used to plug your PC into the new style LCD TV's.

Answer 3

An analog clock is one with an hour hand, minute hand, and second hand. All hands flow smoothly, with no jerkiness.

A digital clock does not have hands but has digits instead, and they jump from one second to the next, or one minute to the next, or one hour to the next.

Analog viewing is what you see when watch a car drive by.

Digital viewing of that same car is what happens if you take a picture of that moving car 10 times a second for say 10 seconds, then stack all 100 pictures on top of each other (and in order of course), then flip through them the way you would flip through a deck of cards. What you see appears to be a movie of a moving car but you are seeing 100 distinct separate pictures. Digital technology works like that. Its called digital because it is not perfectly flowing - it has distinct separate states.

Digital also refers to binary electronic devices. The data going through them is either 0 volts, or a threshold voltage. For instance a 2Ghz processor has voltage running through it that goes between 0 volts and 1.5 volts 2 billion times per second. Everything in a computer is digital except the VGA output to your CRT monitor (if you have one) and your audio output.

Today, anything that has a chip in it is thought of as digital, though most things (like your car) have both analog and digital components.

Answer 4

Digital refers to a signal that is represented by 0's & 1's - which keeps the signal from changing or degrading over multiple copies or distance of transmission. Examples of this include Audio Compact Discs, MP3 files, and DirecTV Satellite Television.

Analog refers to a signal that is based on variable signals, such as a phonograph record, audio cassette, or analog cable television. These signals typically degrade significantly over longer distances or multiple generations of copies.

Answer 5

Digital: Ran by computers or something electrical without human interface.

Analog: Ran by pre-programing or something conducted with human interface.