You look through a digital microscope (a like IDA Pro or Ghidra). You see a sequence of hex numbers: B8 05 00 00 00 . The disassembler translates this into: MOV EAX, 5
The "Stack Pointer," a bookmark showing where you are in a pile of papers. Introduction to x86 disassembly
As you dig deeper, you find a "Stack"—a literal pile of data. Programs use the to remember where they were before they started a side-task. The program PUSHes its current location onto the stack. You look through a digital microscope (a like