Sentences with Back Number

The antique typewriter displayed in the museum is a back number, as modern computers have replaced such devices.

The vintage vinyl records in the music store are considered back numbers, but some people still appreciate the nostalgic sound.

Despite being a back number in terms of technology, the film camera still holds a special place in the hearts of photography enthusiasts.

The handwritten letter, although sentimental, is considered a back number in the age of instant messaging and emails.

The discontinued video game console is now considered a back number, but some gamers cherish the nostalgia it brings.

The traditional farming methods, though considered back numbers, still find relevance in some communities that value sustainable practices.