Tell about the differences between an emulator and a simulator.

Emulator:

• Software that fully reproduces the hardware and operating system of the target device.
• Allows running and testing applications as on a real device, including all its functions and limitations.
• More accurate representation of the application's behavior on a real device.
• Requires more resources (CPU, memory) to operate.
• Examples: Android Emulator, QEMU.

Simulator:

• Software that mimics the behavior of certain parts or functions of the target device (e.g., operating system or runtime environment).
• Does not reproduce the device's hardware.
• Less accurate representation of the application's behavior on a real device, there may be differences.
• Less resource-intensive compared to an emulator.
• Starts and operates faster.
• Examples: iOS Simulator.

Criterion	Emulator	Simulator
Reproduction	Hardware + OS	OS/runtime environment simulation
Accuracy	High (closer to a real device)	Lower (behavior differences possible)
Resources	High consumption	Lower consumption
Speed	Slower	Faster
Purpose	Comprehensive testing	Functional testing, logic debugging