掲けい示じ板ばんシステム

noun

bulletin board system; BBS

Refers to a computer system that allows users to post and read messages, often used in the context of early online communities or specific forums.

• 昔むかしはパソコン通つう信しんの掲けい示じ板ばんシステムでよくやり取とりしたものだ。

  Back in the day, we used to communicate a lot on PC-based bulletin board systems.