Experts have classified memory into two major kinds:
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Knowledge memory contains information about the world while personal memory consists of information about you.
Within knowledge memory, separate domains may exist for numbers, for music, for language and for stories. These are all types of information, which appear to be dealt with in different ways.
Personal memory also comprises different kinds of domain like autobiographical memory, social memory (remembering names and faces of people), skill memory and planning memory.
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Most events in our lives are routine and are merged in memory into one generic memory containing the common element of the experience.