What means
It marks the upright resistor piece in a text schematic.
A resistor limits current. Sharp MZ's Japanese primary character set placed it at byte EE; a character set is a computer's built-in roster of display marks. The MZ-80K, an early model, went on sale in 1978 with character graphics on its screen. Unicode's legacy-computing proposal groups it with schematic pieces designed to join light box-drawing lines—the thin strokes used to draw in text.
Don't confuse it with
4Combination ideas
1Suggested layout: a resistor between vertical wire segments.
Questions people ask
1Why does it appear as a box?
The font or app lacks a glyph for it; another font with legacy-symbol coverage can display it.
How to type
Windows (Word)
Alt+XType 1CC0A, 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 “vertical resistor segment”.
Linux
Ctrl+Shift+UType 1cc0a, then Enter or Space.
HTML
𜰊CSS
\1CC0ACodes and encoding1 code points
HTML decimal
𜰊
HTML hex
𜰊
CSS content
content: "\1CC0A";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9C%B0%8A
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.