In order for a memory to be saved information must be inputted both into a computer and into the human brain.
For a person information is saved through experiences from our environment and are collected through our five senses. In humans most information is saved in short term memory, any information here is lost within 30 seconds. Information that needs to be saved is encoded and saved to later be retrieved is saved in long term memory. This information can be recalled at a later date when needed.
For a computer information is saved in the form of electronic data from the mouse, keyboard or other electronic source. Information that is not needed for retrieval later is saved in the Random Access Memory (RAM). Information within the RAM will be lost when the computer is turned off. Information that can be retrieved later is saved on the hard disk.