from the basic technology point of view , the basic steps that you need um in the diagram and in this slide probably works better. Um okay , you need some power source. 'Kay , a battery or something , to keep it going.
Mm-hmm.
Um and that power source is important because it ties you down to um how long the device will last. Um it ties you down perhaps a bit later on in terms of the technologies
Uh-huh.