Need a font with unambiguous letters for commonly confused characters [closed]

1. What is the best font for vision impaired?
2. What is the best font for alphanumeric?
3. What is monospace type font?

What is the best font for vision impaired?

Arial. As my TVI once explained, Arial is one of the best fonts for vision impairment because every letter is simple and looks different from the other letters, and it also looks fantastic in bold type.

What is the best font for alphanumeric?

The Roman-style Serif font (e.g., font) is widely used, very legible, and provides high discrimination between alphanumeric characters.

What is monospace type font?

Monospaced typefaces are ones in which all or most characters take up the same amount of horizontal space. Code editors use monospaced typefaces by default.