Digital and Analog Signals
How can information be transmitted?
the information are transmitted as electronic signals for example it can be transmitted via copper wire.
Digital Signal
A signal that encodes information as a string of 1's and 0's
How are digital signals created?
Analog waves are changed into numbers (zeros and ones), also called square waves. The digital information is sent as pulses.
Can analog signals turn into digital signals?
Yes analog signals can turn into a digital signals.
What objects contain digital signals?
computers, CD'S, and DVD'S
Analog signals use what kind of waves?
continues wave
Analog Signals
continuous waves that transmit information by altering the amplitude and frequency of the waves
cell phones are examples of what?
digital technology
What are advantages to a digital camera?
lighter that film cameras
What kind of objects contain analog signals?
old radio, megaphone,and old telephones
why do we live in an analog world?
the world it continually changing and so are the analogs waves.
how are digital and analog similar?
they are similar because they can send and receive info.
How can analog signals turn into digital signals?
they can turn it to digital by finding the point and and turning that point into 0's and 1's
What are advantages to an analog camera?
they do not require batteries
Why are digital signals more efficient the analog signals?
they use fiber optics
