Ancient Device for Calculating by Sliding Beads
This page is the CodyCross answer for the clue below from Working From Home, Group 1224, Puzzle 5 (Communication).
Question is: Ancient Device for Calculating by Sliding Beads
and the answer is: ABACUS
Word Meaning:
ABACUS — (historical, obsolete) A table or tray scattered with sand which was used for calculating or drawing.
Definitions from Wiktionary.