It is just letters This is weird
5×7 Dot Matrix Character Icons
These are like what you see on a calculator or any other device with characters like these.
When I looked in achamo's Cubular Microsoft Office Icons, I see 5×7 dot matrix characters on the icons, like this one or that one. I'm also fascinated with coding with calculators. These two things inspired me to do this set.
Use them to make titles, math equations, or words and sentences.