What exaclty is analog technology?

Question

For example the analog technology of a copier. I have a presentation soon and i need to explain the difference between an analog technology copier and digtal technology copier. Ive gone in the internet to search for the meanings but im having a difficult time understanding it. Any help would be appreciated thankyou.

Answer 1

For a full description of an analog copier check Wikipedia

http://en.wikipedia.org/wiki/Photocopier

"Most current photocopiers use a technology called xerography, a dry process using heat."

However, a digital copier works differently. A picture is scanned with a digital scanner. The scanned image is captured as a digital file (say JPEG). Then a laser or injet printer prints that picture.