I have a bit of unclarity in regards to how we should count bytes in TeX. In general, coding in TeX is done through macros, introduced by the escape character. for examples \read16 is the macro which takes stdin.
I would like to know if we could count that as 1 byte for the following reason.
TeX doesn't process the characters that you input directly, it translates them into tokens, which then get processed. In fact, a lengthy macro name like \thisisverylong is actually one byte in TeX's memory.
I would certainly participate in this site more if we could consider every macro as the token it represents rather than the characters typed.