 claiming to have sent and received the message. [General Dictionaries] 
n., Non-repudiation gives a recipient the confidence that the sender cannot deny having sent the data at a later date. [General
Dictionaries] 
obsolete technology 
n., Computer memory that does not require electrical power to maintain its stored content. secondary storage. Opp.: volatile storage. [Computer and Information Sciences] 
Syn
.: persistent storage;
n.,
n., The process of creating and/or storing digital documents or other dig