Electronic equipment and Off-line equipment

Electronic equipment noun - Equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor).

Off-line equipment and electronic equipment are semantically related. In some cases you can replace phrase "Off-line equipment" with "Electronic equipment", this phrases are similar.

Off-line equipment noun - Electronic equipment not in direct communication (or under the control of) the central processing unit.

Electronic equipment and off-line equipment are semantically related. You can use "Electronic equipment" instead a noun phrase "Off-line equipment".