Windows OS is full of DLLs (Dynamic Link Library). Each DLL file has some APIs, which can be used whenever needed (avoid re-inventing the wheel). For example, the system …
The basic integer type in 16-bit Turbo Pascal is 16-bit while from 32-bit Delphi, it is 32-bit. The basic integer types for modern Delphi compilers are: byte, ShortInt, Word, …