According to Chambers Dictionary, a robot is a computer controlled machine able to perform complex tasks such as welding. In fact, the latest generation is capable of much more than this, and companies such as Dyson and Gtech are now designing specific robots to help pensioners with a variety of tasks which they may find tedious or tiring.
Among these are
growbots, hoebots, sowbots and mowbots for gardening
doughbots for bread making
knowbots for pub quizzes
woebots for funerals
blowbots for sexual gratification
gobots for constipation