计算机制图

• 言(word; speech)RADICAL
• 十(ten)PHONETIC

Calculation is using words to count numbers one by one.

• ⺮(bamboo (radical))RADICAL
• 具(tool; implement)PHONO-SEMANTIC

Ancient calculation used bamboo sticks as a tool to count numbers.

• 巾(cloth; scarf)ASSOCIATIVE
• 刂(knife; cut)RADICAL

Making is using a knife to cut cloth into a desired shape.

• 囗(surround; square frame)RADICAL
• 冬(winter)PHONETIC

A map is a frame enclosing all regions of land, and when read closely sounds like "dong" (winter).