At some point in history, paper memorandums were circulated around offices and included “carbon copy” (CC) at the bottom for someone who received the actual carbon copy of the information. For a larger audience—and when copiers were invented—the CC field could include a number of names. The recipient of the memo knew who else had received the memo. It kept the information flow streamlined as there was no guesswork of who had received or not received the memo.
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