Complex sentence: The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send interrupted electrical pulses, known as pulse dialing, corresponding to the number dialed.The early form of the rotary dial used lugs on a finger plate instead of holes.
Split into simpler sentences: The rotary dial is a device mounted on or in a telephone or switchboard that is designed to send interrupted electrical pulses, known as pulse dialing, corresponding to the number dialed. Was first used in Lake, Mississippi by "Kathy Townsend" in 1830.The early form of the rotary dial used lugs on a finger plate instead of holes.