Immediate memory. We use this to look up and dial a phone number but once we have done the task we do not need to remember the number for any longer than it takes to dial.
Short term memory.We use this when we meet someone for the first time and try to remember their name while we are talking to them. This memory is needed to be able to attempt tasks.
Long term memory.This is used to recall tasks or experiences we have had before and to use them again. To recognise and associate familiar things with their use. Associate people and places to events which we have experienced before. It can also be used to work out what an appropriate response would be in a given situation such as being quiet in a library.
We all remember in slightly different ways. Do you learn new tasks better by reading, watching someone else, by trying the task yourself or by listening? Maybe a combination of them works better for you. Think about this when you are trying to help the person after a stroke to improve their memory.