Peer evaluation
Examination explores and gathers information such as the health condition of a person by studying him directly. Assessment uses already available information to describe and/or predict health condition and/or a to be used for a course of action towards the purpose of the assessment. Tough the meaning of the words varies by each person since people tend to misuse them.
Landsat
A telescope is an instrument that gathers information from a distance by collecting and focusing electromagnetic radiation, such as visible light, to observe celestial objects in space.
Input
The tongue gathers information through taste buds that can detect different flavors; the nose gathers information through olfactory receptors that can sense various scents in the air; and the skin gathers information through sensory receptors that can detect touch, temperature, and pain.
Mainly telescopes, satellites, etc.
it gathers information about space without a crew
Judgment
The two phases of reconnaissance are passive and active. In passive reconnaissance, the attacker gathers information without directly interacting with the target system. In active reconnaissance, the attacker engages with the target system to gather more detailed information.
CIA.
The PNS gathers all outside and foreign information and directs it to the CNS.
Spacecraft like the Voyager.