What are you after?

The iPod Click Wheel

Apple's music player, and the click wheel that made scrolling through 5,000 songs genuinely pleasant.

ZX Spectrum 48K

Sinclair's £175 home computer put programming into British bedrooms and created an entire games industry.

Radio Caroline

A ship anchored in international waters playing records all day, listened to under the bedclothes on a transistor radio.

Ceefax

Text pages broadcast in the gaps of the TV signal: news, football scores, and page 302 for the weather.