Final answer:
A program that can spread autonomously from computer to computer is called a worm. Unlike viruses that require human interaction to spread, worms exploit vulnerabilities to travel through networks without assistance.
Step-by-step explanation:
The term that refers to a program or algorithm that spreads from computer to computer and has the capability to travel without any human action is a worm. Unlike a virus, which requires user interaction to spread (such as opening an infected email attachment), a worm can replicate itself and spread across networks without the need for user intervention.
Worms often exploit vulnerabilities in software or operating systems to spread themselves and can cause significant disruption to systems and networks. On the other hand, a Trojan Horse is a type of malware that disguises itself as legitimate software, and a virus needs human action to replicate.