Signals Used Before Digital Ones Came Along
This page is the CodyCross answer for the clue below from Greece, Group 666, Puzzle 1 (Ancient Stadium).
Question is: Signals Used Before Digital Ones Came Along
and the answer is: ANALOG
Word Meaning:
ANALOG — (of a device or system) In which the value of a data item (such as time) is represented by a continuous(ly) variable physical quantity that can be measured (such as the shadow of a sundial).
Definitions from Wiktionary.