Understand ACID and Transaction

[Just a personal note, I'm not the author!]

1 document which had 2 pages content was sent to printer

Transaction - document sent to printer

Atomicity - printer prints 2 pages of a document or none.
Consistency - printer prints half page and the page gets. stuck. The printer restarts itself and prints 2 pages with all content.
Isolation - while there were multiple print outs in progress - printer prints the right content of the document.
Durability - while printing, there was a power cut- printer again prints documents without any errors.

I really liked this simple exmplaination of transaction and ACID and I thought you guys might also benefit from it.
Ref: Stackoverflow