|
Analog
|
Digital
|
|
|
Technology:
|
Analog
technology records waveforms as they are.
|
Converts
analog waveforms into set of numbers
and records them. The numbers are converted into voltage stream for
representation.
|
|
Uses:
|
Can
be used in various computing platforms and under operating systems like
Linux, Unix, Mac OS and Windows
|
Computing
and electronics
|
|
Signal:
|
Analog
signal is a continuous signal which transmits information as a response to
changes in physical phenomenon
|
Digital
signals are discrete time signals generated by digital modulation
|
|
Representation:
|
Uses
continuous range of values to represent information
|
Uses
discrete or discontinuous values to represent information
|
|
Applications:
|
Thermometer
|
PCs,
PDAs
|
|
Data
transmissions:
|
Not
of high
quality
|
High
quality
|
|
Response
to Noise:
|
More
likely to get affected reducing accuracy
|
Less
affected since noise response are analog in nature
|
|
Waves:
|
Denoted
by sine waves
|
Denoted
by square waves
|
|
Example:
|
Human
voice in air
|
Electronic
devices
|
Summary:
Analog signals can be converted into
digital signals by using a modem.
Digital signals use binary values to send and receive data between
computers.
Digital signals are easier and more
reliable to transmit with fewer errors.
Analog signal are replicas of sound
waves that can be distorted with noise and drop the quality of transmission.
Digital data has a faster rate of
transmission when compared to analog, and gives better productivity.
No comments:
Post a Comment