Payload (noun)

1. The useful load carried by a vehicle, especially an aircraft or rocket, consisting of things such as cargo, equipment, or instruments.
2. The quantity of something, such as data or instructions, carried by a single packet in a computer network.

Origin:

Early 20th century: from pay + load.

Examples:

1. The airplane had a maximum payload of 15,000 pounds.
2. The rocket successfully launched its payload into orbit.
3. The payload of the truck was a heavy load of steel beams.
4. The payload of the packet contained the instructions for the computer to execute.
5. The payload of the missile was a nuclear warhead.