A pen register is an electronic device that records all numbers called from a particular telephone line. The term has come to include any device or program that performs similar functions to an original pen register, including programs monitoring Internet communications.
The United States statutes governing pen registers are codified under 18 U.S.C., Chapter 206.
Read more about Pen Register: Definitions, Background, Pen Register Act, USA-PATRIOT Act, NSA Call Database Controversy, Pen Registers in Popular Culture
Famous quotes containing the words pen and/or register:
“I have not made a study of it, but believe that it is a minor point in the history of the war.”
—Jean-Marie Le Pen (b. 1928)
“Never to walk from the station’s lamps and laurels
Carrying my father’s lean old leather case
Crumbling like the register at the hotel....”
—Philip Larkin (1922–1986)