Comments are notes explaining VBA program code and appear in blue.

As a general rule, new software versions are backward-____________________, meaning that documents saved by an older version can be read by newer software.

Fill in the blank(s) with the appropriate word(s).

Flickr is based on the premise that people who use the World Wide Web want to share their digital ____________________ online.

Fill in the blank(s) with the appropriate word(s).