Analogue and Digital Data

Question 1

what is Analogue data

Answer 1

Analogue data is physical data that
changes smoothly from one value to the
next, and not in discrete steps as with
digital data.

Question 2

what is Digital data

Answer 2

Digital data is the electronic representation of
data in a format or language that machines
can read and understand.

That is binary format 0 and 1.

Question 3

describe how Digital data is converted to analogue

Answer 3

If the computer is controlling a device
(such as a motor) then the digital output
from the computer needs to be converted
into analogue form. This is done by a
digital to analogue converter (DAC).

Question 4

Describe how analogue data is converted to Digital data

Answer 4

If analogue data is being sent to a
computer, it must first be converted into
digital data; this is done by hardware
known as an analogue to digital converter
(ADC).

Question 4

Describe how digital data is converted to analogue data

Answer 4

If the computer is controlling a device
(such as a motor) then the digital output
from the computer needs to be converted
into analogue form. This is done by a
digital to analogue converter (DAC).

Question 4

What does ADC stand for

Answer 4

analogue digital converter

Question 5

What does DAC stand for

Answer 5

digital analogue converter