line

1. <hardware> An electrical conductor. For distances larger than a breadbox, a single line may consist of two electrical conductors in twisted, parallel, or concentric arrangement used to transport one logical signal.

By extension, a (usually physical) medium such as an optical fibre which carries a signal.

Nearby terms:
LINCtape « Linda « LindaLISP « line » line 666 » linear address space » linear argument