$*$leftmost and rightmost derivations with corresponding parse trees. eg$.$ id $-$ id $+$ id

$*$How the scanner works and importance of scanner.

$*$Understanding ff terminologies:

i$.$ Ambiguous grammar

ii$.$ Tokenization

iii. Parsing

iv$.$ Symbol Table

$*$tools needed to build a compiler.

$*$Functions of compiler.

$*$Explaing Front end and Back end of compiler structure.

$*$Compiler and interpreter. The differences b$/$n them.

$*$How to compile multiple files at once.

$*$All programming languages come with their own compiler. Why not one general compiler for all.