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Marks that report what a device is doing or offer a control, rather than standing for an idea. Grouped for identification, not for significance: a hamburger button is a control and a Wi-Fi fan is a status reading. Two of them do carry real history — the Bluetooth glyph is a bind rune of a tenth-century king's initials — and the records say so where it is documented rather than implying depth everywhere.
Three stacked horizontal lines that open a navigation menu.
Nested arcs radiating from a dot, indicating a wireless network signal.
An angular rune-like glyph marking a Bluetooth wireless connection.
A right-pointing triangle that starts playback.
Two upright bars that suspend playback.
A vertical bar (|) — IEC 60417-5007, marking the control position that places equipment into a fully powered state.
A plain circle (◯) — IEC 60417-5008, marking the control position that disconnects power from the equipment.
A vertical line entering the top of a broken circle — IEC 60417-5009, marking a control that puts equipment into a low-power state rather than fully disconnecting it.