(computing) character encoding

A barcode: a set of machine-readable lines of varying width placed on products to represent pricing or other such data.

(computing) kuten code, the 4-digit codepoint of a character according to its location in JIS encodings

source code

An extension cord.

to use one's head

use one thing for many purposes / work someone hard

Concord (the capital city of New Hampshire) / Concord (a city in California) / Concord (a city in Massachusetts) / Concord (a city in Kentucky) / Concord (a city in North Carolina)

dress code

telegraph code