While the Play/Pause symbols aren’t native to computers, they’ve made their way onto keyboards, media players (real and virtual), and every other device capable of playing audio or video. 雖然播放/暫停 符號並不是原生於電腦的，不過他們已經被放到了鍵盤、媒體播放器（軟體或硬體的），以及任何可以播放聲音與影像的裝置上。
Unfortunately, neither the right-pointing triangle nor the double pause bars seem to have a definitive origin. They first appeared as tape transport symbols on reel-to-reel tape decks during the mid-1960s. In some cases, they were accompanied by the (double triangle) rewind and fast forward symbols.
The direction of the play arrow indicated the direction the tape would move. Easy.