What means
The output turns on only when every input is on.
In the Sharp MZ-700 European alternate display set, the sign had code DB. BASIC programs showed it with POKE, a command that writes values to display memory; it was not a keyboard entry. Unicode keeps the AND reading.
Don't confuse it with
4Questions people ask
1Why does this symbol show as a box?
The text may be intact, but the active font can lack the glyph. Choose a font that includes this character.
How to type
Windows (Word)
Alt+XType 1CC16, then Alt+X to get .
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “logic gate and”.
Linux
Ctrl+Shift+UType 1cc16, then Enter or Space.
HTML
𜰖CSS
\1CC16Microsoft Word for Windows
Type 1CC16, then press Alt+X.
Codes and encoding1 code points
HTML decimal
𜰖
HTML hex
𜰖
CSS content
content: "\1CC16";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9C%B0%96
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

