Analog: a method or thing that represents information in a continuous form; often contrasted with digital in electronics, audio, or visual contexts.
このカメラはアナログ時代の名機だ。
This camera is a classic from the analog era.
デジタルよりアナログ音のほうが温かいと言う人がいる。
Some people say analog sound is warmer than digital.
彼はアナログ時計の針の動きが好きだ。
He likes the movement of the hands on an analog clock.