Terminal font behavior is different from other fonts .

for example, here is a screen shot of terminal font glyphs why it has limited glyphs , why its not showing unicode codepoint ? Is there any relation between terminal font and codepage 437 ,, because when i move cursor to a specific font , it shows codepoint value of page 437

[![enter image description here][2]][2]

why arial fonts has so many glyphs and it has unicode codepoints [2]: https://i.sstatic.net/rRKGU.png