Savestate vs. Emulator

A file that contains an emulator's or virtualizer's state at the moment it was saved to disk. The file contains the contents of the memory, registers and other pertinent data that allows the user to resume the application from the moment the file was created.

A person or thing that emulates.

(computing) A piece of software or hardware that simulates another system.

One who emulates, or strives to equal or surpass.

Example: ‘As Virgil rivaled Homer, Milton was the emulator of both.’;

someone who copies the words or behavior of another

In computing, an emulator is hardware or software that enables one computer system (called the host) to behave like another computer system (called the guest). An emulator typically enables the host system to run software or use peripheral devices designed for the guest system.