Today is the first day of the April A to Z challenge. I picked two things for A. A is for Adeventure. Some already know this about me, and some don’t. I’m definitely a thrillseeker. I enjoy jumping out of airplanes, ziplining, bungee jumping, parasailing, and things like that. I always say that I enjoy the flying sensation. I do have skydiving videos on Youtube. I’ll try to paste them here in a pastebin, because linking to seven short clips that did not get put into a playlist, because Youtube’s playlist feature is a bit iffy with screen readers, or at least it was last August, it did not provide for ordering features. OK not Pastebin, because it was being strange, but another service I actually had to register for to get the thing to stay up. []] The second thing i picked for the letter A was my X username, Antipentrap. It actually comes out of Lavabit, of course. It means what it says, basically. Pen-trap is short for pen register, trap and trace. Quoting from Wikipedia. }The term pen register originally referred to a device for recording telegraph signals on a strip of paper. Samuel F. B. Morse’s 1840 telegraph patent described such a register as consisting of a lever holding an armature on one end, opposite an electromagnet, with a fountain pen, pencil or other marking instrument on the other end, and a clockwork mechanism to advance a paper recording tape under the marker.[2] The term telegraph register came to be a generic term for such a recording device in the later 19th century.[3] Where the record was made in ink with a pen, the term pen register emerged. By the end of the 19th century, pen registers were widely used to record pulsed electrical signals in many contexts. For example, one fire-alarm system used a “double pen-register”,.] and another used a “single or multiple pen register”.. As pulse dialing came into use for telephone exchanges, pen registers had obvious applications as diagnostic instruments for recording sequences of telephone dial pulses. In the United States, the clockwork-powered Bunnell pen register remained in use into the 1960s. After the introduction of tone dialing, any instrument that could be used to record the numbers dialed from a telephone came to be defined as a pen register. Title 18 of the United States Code defines a pen register as: a device or process which records or decodes dialing, routing, addressing, or signaling information transmitted by an instrument or facility from which a wire or electronic communication is transmitted, provided, however, that such information shall not include the contents of any communication, but such term does not include any device or process used by a provider or customer of a wire or electronic communication service for billing, or recording as an incident to billing, for communications services provided by such provider or any device or process used by a provider or customer of a wire communication service for cost accounting or other like purposes in the ordinary course of its business This is the current definition of a pen register, as amended by passage of the 2001 USA PATRIOT Act. The original statutory definition of a pen register was created in 1984 as part of the Electronic Communications Privacy Act, which defined a “Pen Register” as: A device which records or decodes electronic or other impulses which identify the numbers called or otherwise transmitted on the telephone line to which such device is dedicated. A pen register is similar to a trap and trace device. A trap and trace device would show what numbers had called a specific telephone, i.e., all incoming phone numbers. A pen register rather would show what numbers a phone had called, i.e. all outgoing phone numbers. The two terms are often used in concert, especially in the context of Internet communications. They are often jointly referred to as “Pen Register or Trap and Trace devices” to reflect the fact that the same program will probably do both functions in the modern era, and the distinction is not that important. The term “pen register” is often used to describe both pen registers and trap and trace devices.” [] I wasn’t going to use both terms in my X username, so I just combined them, which we do in today’s legal orders, anyway, for the most part. If you’ve ever seen an order written for a pen register, or trap and trace device, it’s usually written as pen-trap. I guess it can be written with a space, for instance, as in this article, [] However, that’s the first time I’ve seen it written this way. They are also written separately, but the distinction is not important these days, as the Wikipedia article said, the devices do the same things in the 21st century.