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                     What are the Difference between Digital and Analog 
Technology? 
 
Differentiate the digital and analog technology and its uses 
One of the most exciting things you could own was a digital watch. Instead of trying to figure out the 
time from slowly rotating hands, as you had to do with an old-style analog watch, you simply read the 
numbers off a digital display. Since then, students of best engineering college in Jaipur got more used to 
the idea of digital technology. Now pretty much everything seems to be digital, from television and radio 
to music players, cameras, cell phones, and even books.  
What Is Analog Technology? 
People accept digital things easily enough, often by thinking of them as electronic, computerized, and 
perhaps not even worth trying to understand. But the concept of analog technology often seems more 
confusing especially when people try to explain it in pages like this.  
What Does Analog Actually Mean? 
If you have an analog watch, it tells the time with hands that sweep around a dial: the position of the 
hands is a measurement of the time. How much the hands move is directly related to what time it is. So, 
if the hour hand sweeps across two segments of the dial, it is showing that twice as much time has 
elapsed compared to if it had moved only one segment. That sounds incredibly obvious, but it is much 
more subtle than it first seems. The point is that the hand's movements over the dial are a way of 
representing passing time. It is not the same thing as time itself, it's a representation or an analogy of 
time. The same is true when you measure something with a ruler. If you measure the length of your 
finger and mark it on the surface of a wooden ruler, that little strip of wood or plastic students of top 
engineering college in Jaipur are looking at is the same length as your finger. It is not your finger, of 
course. Instead, it is a representation of your finger: another analogy. That's really what the term analog 
means. 
Analog measurements 
Until computers started to dominate science and technology in the early decades of the 20th century, 
virtually every measuring instrument was analog. If an individual wants to measure an electric current, 
you did it with a moving-coil meter that had a little pointer moving over a dial. The more the pointer 
moved up the dial, the higher the current in your circuit. The pointer was an analogy of the current. All 
kinds of other measuring devices worked in a similar way, from weighing machines and speedometers to 
sound-level meters and seismographs.  
Analog information 
However, analog technology is not just about measuring things or using dials and pointers. When 
students of best BTech colleges Jaipur say something is analog, they often simply mean that it is not 
digital. The job it does, or the information it handles, does not involve processing numbers 
electronically. An old-style film camera is sometimes referred to as example of analog technology. You 
capture an image on a piece of transparent plastic "film" coated with silver-based chemicals, which react 
to light. When the film is developed, it is used to print a representation of the scene you photographed. 
In other words, the picture you get is an analogy of the scene you wanted to record. The same is true of 
recording sounds with an old-fashioned cassette recorder. The recording you make is a collection of 
magnetized areas on a long reel of plastic tape. Together, they represent an analogy of the sounds you 
originally heard. 
What Is Digital Technology? 
Digital is entirely different. Instead of storing words, pictures, and sounds as representations on things 
like plastic film or magnetic tape, we first convert the information into numbers and display or store the 
numbers instead. 
Digital measurements 
Many scientific instruments now measure things digitally (automatically showing readings on LCD 
displays) instead of using analog pointers and dials. Thermometers, blood-pressure meters, multimeters 
(for measuring electric current and voltage), and bathroom scales are just a few of the common 
measuring devices that are now likely to give an instant digital reading to the students of private 
engineering colleges in Jaipur. Digital displays are generally quicker and easier to read than analog ones, 
whether they are more accurate depends on how the measurement is actually made and displayed. 
Digital information 
 All kinds of everyday technology also work using digital rather than analog technology. For instance, cell 
phones transmit and receive calls by converting the sounds of a person's voice into numbers and then 
sending the numbers from one place to another in the form of radio waves. Used this way, digital 
technology has many advantages. It is easier to store information in digital form and it generally takes 
up less room. Students of engineering colleges Jaipur will need several shelves to store 400 vinyl, analog 
LP records, but with an MP3 player you can put the same amount of music in your pocket. Digital 
information is generally more secure: cellphone conversations are encrypted before transmission 
something easy to do when information is in numeric form to begin with.  
Which Is Better, Analog Or Digital? 
Just because digital technology has advantages, that does not mean it is always better than analog. An 
analog watch might be far more accurate than a digital one if it uses a high-precision movement to 
measure time passing, and if it has a sweeping second hand it will represent the time more precisely 
than a digital watch whose display shows only hours and minutes. Analog watches can also keep time 
better than quartz ones: the day-to-day variations in a mechanical, analog watch tend to cancel one 
another out, while those in an electronic quartz watch tend to compound one another. 
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