Complex sentence: Patterned after the British Post Office's Prestel system, it started as a videotex service requiring users to have a special terminal, the AT&T Sceptre, then became a computer-based service as home computers and other personal computers became important in the marketplace.
Split into simpler sentences: Patterned after the British Post Office's Prestel system, it started as a videotex service requiring users to have a special terminal, the AT&T Sceptre. It became a computer-based service as home computers and other personal computers became important in the marketplace.