Electronic machines...
Started to appear in the late 70's/early 80's from Servis & Hotpoint. Hoover catching up sometime around the mid 80's. They were expensive but the electronics were reliable. To make electronic control available to the nation, hybrid timers where made, this is where the cams on the timer select "files" or processes for the microprocesser to carry out. Servis were the first to use hybrid electronics followed by Hoover and their New Wave in the early 90's. Hotpoint started to use them in 1995 phasing out mechanical timers.
James.