It can be described as a circle the size of a lowercase character with four short radiating arms at 45° (NE), 135° (SE), 225° (SW) and 315° (NW).
The introduction of 8-bit encoding and the ISO/IEC 8859 code pages meant that all major national currency symbols (in use at the time) could be accommodated.
In Soviet computer systems (usually using some variant of KOI character set) this symbol was placed at the code point used by the dollar sign in ASCII.
In the modern era, the Unicode standard gives each of the major currency symbols – and this one – its own unique and device-independent code point, with implementation (or lack of) left to font designers.
[6] It is represented in Unicode as U+00A4 ¤ CURRENCY SIGN (¤) The symbol is available on some keyboard layouts, for example, French, Danish, Norwegian, Swedish, Finnish, Estonian, Slovak and Hungarian.