many things depending on what function do u want him to perform but the main things are some input tools like(buttons,switches,potientiometer,sensors,etc)and some outputs(screen,LEDs,motor,etc)and the most important thing is the head of the robot(micro controllers,computers,chips,arduino,etc)
there are to miny parts to a robot
Self healing robots are robots that can find replacement parts to help themselves repair. This could be as simple as finding something to shield sensitive components or as complex as creating new parts.
As big as you want them to be when you have enough parts.
Car industries use robots, If that's what you mean. If not Google.com :)
Robots don't use bathrooms
Exploratory robots use motion, heat, and camera sensors.
No. At least not generally speaking. Robots still need maintenance and parts can break down.
Robots will do any job repeatedly, no matter how boring or monotonous. Robots can work in severly polluted or toxic areas. Robots can work with very fine parts that humans have trouble even seeing. A robot can be made to work with weights of several tons or bend steel and other metals.
No robots cant use the bathroom they simply have no Bladder so they cant ever have to go
they assembly the bigers parts
Robots that self operate are known as automaton robots.
Robots do a lot of different jobs. Robots can be programmed to construct small assemblies of parts much faster and with better accuracy than humans, and they don't need bathroom or smoke breaks. Robots can be programmed to perform almost any repetitive task that can be broken down into small steps and performed over and over again. Many tasks that are unsafe or dangerous for humans can also be done by programmable robots, such as painting, working with explosives, and so on. The use of industrial robots has increased a lot over the past few years, and they will no doubt become even more prevalent in the future.