[Weekender] Old calculators gaining popularity
Social affairsApr 17, 2015
Jupan, a time-honored form of calculator also known as the abacus, is reemerging in South Korea as an analog tool to sharpen mental acumen in the era of digital distraction. The abacus was first presented as drawings of circles by Babylonians around B.C. 3000. It was later modified into the shape we know now ― the rectangular wooden frame and beads strung up on metal rods ― by the Chinese in A.D. 1300, who called it “suanpan.” Koreans adopted it in 1400 under the name “jupan.” By visualizing num