A term commonly used as a quick reply to an email acknowledging receipt of information in order to make the sender go away. It sarcastically shows that you care about what is being told to you when you really don’t care at all
It can also be used in daily email conversations to convey no emotion and no interest in what is being told to you in order to cut off the person sending you the email.
Mr. Manager Email: "Group, please review the contents of my email regarding your break times and arrival"
Group: Lets reply “noted” to the email … Now; who wants to go downstairs for breakfast while Mr. Manager sits in his office down the hall?