1. A server is a collection of computer programs, hosted on a computer that provides services to other computers, via some connection – usually a network. Voting systems use special-purpose servers to create closed networks for uploading and downloading information from voting system media (memory cards). These servers also contain the tabulation software.

Source: Information Technology Terminology, U.S. Election Assistance Commission,

2. A machine that provides services (for instance a web server, e-mail server, proxy server, file server, or print server) to other machines. In general, all machines on the Internet fall into two categories: clients and servers. Where the available intelligence permits, specify the type of server involved (e.g., an e-mail server).

Source: Cyber Threats to Elections – A Lexicon, Cyber Threat Intelligence Integration Center & Office of the Director of National Intelligence,