Chapter 3
Data and Signals
3.1
, Note
To be transmitted, data must be
transformed to electromagnetic signals.
3.2
, 3-1 ANALOG AND DIGITAL
Data can be analog or digital. The term analog data refers
to information that is continuous; digital data refers to
information that has discrete states. Analog data take on
continuous values. Digital data take on discrete values.
Topics discussed in this section:
Analog and Digital Data
Analog and Digital Signals
Periodic and Nonperiodic Signals
3.3
, Note
Data can be analog or digital.
Analog data are continuous and take
continuous values.
Digital data have discrete states and
take discrete values.
3.4
Data and Signals
3.1
, Note
To be transmitted, data must be
transformed to electromagnetic signals.
3.2
, 3-1 ANALOG AND DIGITAL
Data can be analog or digital. The term analog data refers
to information that is continuous; digital data refers to
information that has discrete states. Analog data take on
continuous values. Digital data take on discrete values.
Topics discussed in this section:
Analog and Digital Data
Analog and Digital Signals
Periodic and Nonperiodic Signals
3.3
, Note
Data can be analog or digital.
Analog data are continuous and take
continuous values.
Digital data have discrete states and
take discrete values.
3.4
