Can I take memory out of a dell and put it in a compaq laptop?

My dell laptop has a connection problem with the battery and wont charge, so I am getting a compaq. My dell has 2mb as to the compaq only having 1. Can I take the memory out of the dell and put it into the compaq?Can I take memory out of a dell and put it in a compaq laptop?If motherboad has the slot available for your memory type. Yes, Off course. you can put it.Can I take memory out of a dell and put it in a compaq laptop?You can run that memory in most laptops, as long as its frequency fits the mainboards freq.