Why we use modem, Computer Engineering

Assignment Help:

Q. Why we use Modem?

A Modem is one device which most computer users who have surfed Internet are aware of.  A modem is neededsincehowever most of telecommunications have become digital most telephone connections at user end are still analog POTS (Plain Old Telephone Systems/Sets/Service). But the computer is a digital device and henceforth another device is requiredthat can convert digital signals to analog signals and vice-versa.  Such a device is Modem. Modem signifies Modulator/Demodulator.  Modulation is process that puts digital information on to analog circuit by modifying a constant wave (signal) known as the Carrier.  This is what happens whenever you press a button to connect to Internet or to a web site.  Demodulation is reverse process that derived digital signal from modulated wave. This is what happens when you receive data from a website which then gets displayed by your browser.


Related Discussions:- Why we use modem

Input a list of positive numbers, Input a list of positive numbers, termina...

Input a list of positive numbers, terminated by 0, into an array Numbers. Then display the array and the largest and smallest number in it.

How to fix an asic-based design from easiest to most extreme, How to fix an...

How to fix an ASIC-based design from easiest to most extreme? There are different ways to fix an ASIC-based design as given below: Initially, assume some reviews fundamentally.

How do active web pages work, How do active web pages work? Describe with a...

How do active web pages work? Describe with a small example. Active Web Pages: An active document is not completely specified through the server. Instead an active documen

What is reification and behaviour, What is reification and behaviour? R...

What is reification and behaviour? Reification is the promotion of something that is not an object into an object. Behavior usually requires this description. It isn't usually

Commutatively of connectives - artificial intelligence, Commutatively of Co...

Commutatively of Connectives You will be aware from the fact that some arithmetic operators have a property that it does not matter which way around you give the operator input

Sap system configuration, SAP system configuration includes It include...

SAP system configuration includes It includes :- a) Dialog tasks b) Update tasks.

Scanning tips, Don't scan at more resolution than needed. This saves both D...

Don't scan at more resolution than needed. This saves both Disk and time Space. Typically itisn't useful to scan at more than optical resolution because it adds no new informa

Embedded software, Embedded Software Intelligent products have becom...

Embedded Software Intelligent products have become commonplace for all consumer and industrial market. Embedded software stays in read only memory and is utilised to control

3D rotation, Magnify a triangle with vertices A = (0,0), B = (3,3) and C = ...

Magnify a triangle with vertices A = (0,0), B = (3,3) and C = (6,4) to twice its size in such a way that A remains in its original position.

What is the system call available to change the personality, What is the sy...

What is the system call available to change the personality? The system call personality prefers to a method to modify its implementation domain in order that Linux can emulate

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd