1 Merino is one of the softest types of wool available, because of finer fibers and smaller scales.  Merino has an excellent warmth-to-weight ratio compared to other wools, in part because the smaller fibers have microscopic cortices of dead air, trapping body heat similarly to the way a sleeping bag warms its occupant.
Transistorâtransistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors.
Digital Subscriber Line (DSL)-Digital subscriber line is the transmission of digital information, usually on a copper wire pair. Dual Tone Multi-Frequency (DTMF)-DTMF signaling is a means of transferring information from a user to the telephone network through the use of in-band audio tones.