Back the early days of computers programmers had to talk to the computers with very specific instructions, a simple thing like adding two numbers would take several punch cards on binary. Then they invented assemblers. A shorthand for machine code, now every instruction had a small keyword and the assembler made the machine code. This saved programmers hundreds of hours of coding and debugging. Then came the compilers, with them you could write something closer to normal language and the computer would translate it, this saved even more time than assemblers. After that came the interpreters, with compilers you have to compile a program for every single platform but with interpreters you can take let’s say a python script and run it on every platform that has the python interpreter saving kits of time when moving apps to other platforms